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campo-sirio/arch/cxl_sobj.cpp

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//
// CXL_SOBJ.CPP
//
// Source file for ArchiveLib 1.0
//
// Copyright (c) Greenleaf Software, Inc. 1994
// All Rights Reserved
//
// CONTENTS
//
// deleteALStorage()
// ALStorageSetMonitor()
// ALStorageDelete()
// ALStorageSetName()
// ALStorageCompare()
// ALStorageGetSize()
// ALStoragePackedAttributes()
// ALStorageSetFromDosAttributes()
// ALStorageSetFromPackedAtts()
// ALStorageWildCardMatch()
// ALStorageChangeExtension()
// ALStorageChangeExtensionVB()
// ALStorageChangeTrailingChar()
// ALStorageChangeTrailingCharVB()
// ALStorageGetName()
// ALStorageGetNameVB()
// ALStorageGetOldName()
// ALStorageGetOldNameVB()
// ALStorageGetStatusCode()
// ALStorageSetError()
// ALStorageGetStatusString()
// ALStorageGetStatusStringVB()
// ALStorageGetStatusDetail()
// ALStorageGetStatusDetailVB()
// ALStorageGetUnixTime()
// ALStorageToJulian()
// ALStorageFromJulian()
// ALStorageSetTimeDateFromStruc()
// ALStorageGetStrucFromTimeDate()
// ALStorageSetTimeDateFromUnix()
// ALStorageIsOpen()
// ALStorageReadChar()
// ALStorageReadShort()
// ALStorageReadLong()
// ALStorageWriteLong()
// ALStorageWriteShort()
// ALStorageWriteString()
// ALStorageInitCrc32()
// ALStorageTell()
// ALStorageReadBuffer()
// ALStorageWriteBuffer()
// ALStorageGetCrc32()
// ALStorageClose()
// ALStorageCreate()
// ALStorageFlushBuffer()
// ALStorageLoadBuffer()
// ALStorageOpen()
// ALStorageRename()
// ALStorageRenameToBackup()
// ALStorageSeek()
// ALStorageUnRename()
// ALStorageWriteChar()
// ALStorageGetType()
//
// DESCRIPTION
//
// This file contains all of the C/VB translation routines to support
// class ALStorage. There are very few functions that you will need
// to call for classes derived from ALStorage (other than constructors)
// so this file should contain most of the stuff you need.
//
// All of these translation/wrapper functions are markedly unenlightening.
// The real details for most of the code can be found in STORAGE.CPP.
// When you want to know what a derived class is doing, try looking in
// in MEMSTORE.CPP or FILESTOR.CPP.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
//
#include "arclib.h"
#pragma hdrstop
#include "al.h"
#include "alcxl.h"
//
// extern "C" void deleteALStorage( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// is going to be destroyed.
//
// RETURNS
//
// Nothing, this is a destructor.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ destructor ALStorage::~ALStorage(). This function checks its
// single handle argument for correct type (in debug mode), then casts
// and calls the dtor.
//
// Note that since the destructor is virtual, you will actually be
// going to the destructor for your derive class.
//
// The ALStorage destructor does a fair amount of work, so you might
// want to check it out in STORAGE.CPP.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION deleteALStorage( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "deleteALStorage" );
delete (ALStorage *) this_object;
}
//
// extern "C" void ALStorageSetMonitor( hALStorage this_object,
// hALMonitor monitor )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// is have a new monitor assigned to it.
//
// monitor : A handle for (pointer to) an ALMonitor object. This
// object is going to be assigned to the storage object.
//
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ data member ALStorage::mpMonitor. This function checks its
// two handle arguments for correct type (in debug mode), then casts
// and assigns.
//
// Normally, assignment of monitor objects to storage objects is done
// inside the member functions of ALArchiveBase. However, if you want
// to use a monitor for some operation you are performing on your own,
// such as a batch file copy, you will have to use this function (along
// with a couple of others) to get things to work properly.
//
// Note that 0 is a valid value for a monitor.
//
// To see how the monitor actually works, check out ARCHIVEB.CPP,
// and BARGRAPH.CPP or WINMON.CPP.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION ALStorageSetMonitor( hALStorage this_object,
hALMonitor monitor )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetMonitor" );
if ( monitor )
AL_ASSERT_OBJECT( monitor, ALMonitor, "ALStorageSetMonitor" );
( (ALStorage *) this_object )->mpMonitor = (ALMonitor *) monitor;
}
//
// extern "C" int ALStorageDelete( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// is going to have its underlying physical object deleted.
//
// RETURNS
//
// AL_SUCCESS, or some other error code.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALStorage::Delete(). This function checks its
// handle argument for correct type (in debug mode), then casts
// and calls Delete().
//
// Delete() is used to delete the underlying physical object associated
// with a storage object, for example, a disk file. The implementation
// of this function will vary widely across derived classes.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALStorage::Delete(). See FILESTOR.CPP and MEMSTORE.CPP for an
// in-depth look at the whole deal.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageDelete( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageDelete" );
return ( (ALStorage *) this_object)->Delete();
}
//
// extern "C" void ALStorageSetName( hALStorage this_object,
// char *object_name )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// is going to have its name changed.
//
// object_name : The new name.
//
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALName::operator =(char*), for the mName member
// of objects of class ALStorage. This function checks its single
// handle argument for correct type (in debug mode), then casts
// and assigns.
//
// This function changes the name in the ALStorage object, but it doesn't
// change the underlying name of the physical object (if there is one.)
// To do that, you need to call ALStorageRename().
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALName. See OBJNAME.CPP for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION ALStorageSetName( hALStorage this_object,
char *object_name )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetName" );
( (ALStorage *) this_object )->mName = object_name;
}
//
// extern "C" int ALStorageCompare( hALStorage this_object,
// hALStorage test_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// is going to be half of the comparison.
//
// test_object : A handle for (pointer to) the storage object that
// is going to be the other half of the comparison.
//
// RETURNS
//
// AL_SUCCESS if they match, AL_COMPARE_ERROR if they don't, some other
// code < AL_SUCCESS if a bad thing happened.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALStorage::Compare(). This function checks its two
// handle arguments for correct type (in debug mode), then casts
// and calls ALStorage::Compare().
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALStorage::Compare(). See STORCMP.CPP for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageCompare( hALStorage this_object,
hALStorage test_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageCompare" );
AL_ASSERT_OBJECT( test_object, ALStorage, "ALStorageCompare" );
return ( (ALStorage *) this_object )->Compare( *(ALStorage *) test_object );
}
//
// extern "C" long ALStorageGetSize( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to get this size of.
//
// RETURNS
//
// The long size of the storage object if it is known. -1 if it
// isn't known. Some other error code < 0 if things went haywire.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALStorage::GetSize(). This function checks its
// handle argument for correct type (in debug mode), then casts
// and calls ALStorage::GetSize(). It returns the long integer
// result back to the calling procedure unchanged.
//
// GetSize() is not a virtual function, it simply provides access to
// the mlSize member of ALStorage. However, mlSize will be updated
// many of the member functions of ALStorage and derived classes.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALStorage::GetSize(). See STORAGE.H for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" long AL_FUNCTION ALStorageGetSize( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetSize" );
return ( (ALStorage *) this_object)->GetSize();
}
//
// extern "C" unsigned short int ALStoragePackedAttributes(
// hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// has the packed attributes you are interested int.
//
// RETURNS
//
// An unsigned short containing the packed attributes of the storage
// object. The attributes are packed in our own internal format
// (which is documented).
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALFileAttributes::PackedAttributes() for the
// mAttributes data member of class ALStorage. This function checks its
// handle argument for correct type (in debug mode), then casts
// and calls the C++ function. It returns the unsigned short
// result back to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALFileAttributes::PackedAttributes. See FILEATTR.H for the details
// on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" unsigned short int AL_FUNCTION
ALStoragePackedAttributes( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStoragePackedAttributes" );
return ( (ALStorage *) this_object)->mAttributes.PackedAttributes();
}
//
// extern "C" void
// ALStorageSetFromDosAttributes( hALStorage this_object,
// unsigned short int dos_attributes )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// attributes you want to set.
//
// dos_attributes : A set of file attributes in the format you normally
// get from MS-DOS functions such as _dos_getfileattr().
// RETURNS
//
// Nothing, a void guy.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to set the
// value of the ALStorage data member mAttributes by way of the
// ALFileAttributes::SetFromDosAttributes() member function. This function
// checks the handle argument for correct type (in debug mode), then casts
// and calls the C++ function.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALFileAttributes::SetFromDosAttributes(). See FILEATTR.CPP for the
// details on that.
//
// Doesn't compile in AL_FLAT_MODEL, because file attributes are handled
// completely differently in Win32s/NT.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
#if !defined( AL_WIN32S )
extern "C" void AL_FUNCTION ALStorageSetFromDosAttributes( hALStorage this_object, unsigned short int dos_attributes )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetFromDosAttributes" );
( (ALStorage *) this_object)->mAttributes.SetFromDosAttributes( dos_attributes );
}
#endif
//
// extern "C" void
// ALStorageSetFromPackedAtts( hALStorage this_object,
// unsigned short int packed_attributes )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// attributes you want to set.
//
// packed_attributes : A set of file attributes in the format used
// internally by ArchiveLib.
// RETURNS
//
// Nothing, a void guy.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to set the
// value of the ALStorage data member mAttributes by way of the
// ALFileAttributes::SetFromPackedAttributes() member function. This
// function checks the handle argument for correct type (in debug mode),
// then casts and calls the C++ function.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALFileAttributes::SetFromPackedAttributes(). See FILEATTR.CPP for the
// details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION ALStorageSetFromPackedAtts( hALStorage this_object, unsigned short int packed_attributes )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetFromPackedAtts" );
( (ALStorage *) this_object )->mAttributes.SetFromPackedAttributes( packed_attributes );
}
//
// extern "C" int ALStorageWildCardMatch( hALStorage this_object,
// char *pattern )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// name you want to test.
//
// pattern : A regular expression that will be tested for a match.
//
// RETURNS
//
// 1 for a match, 0 for not.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALName::WildCardMatch() C++ member function for the mName data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALName::WildCardMatch(). See OBJNAME.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageWildCardMatch( hALStorage this_object, char AL_DLL_FAR *pattern )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageWildCardMatch" );
return ( (ALStorage *) this_object )->mName.WildCardMatch( pattern );
}
// C TRANSLATION FUNCTION
//
// extern "C" char * ALStorageChangeExtension( hALStorage this_object,
// char *new_extension )
// VB TRANSLATION FUNCTION
//
// extern "C" long ALStorageChangeExtensionVB( hALStorage this_object,
// char *new_extension )
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// name you want to test.
//
// new_extension : A new three letter (maybe) extension you want
// to apply to the object name.
//
// RETURNS
//
// A string pointer (or VB string) containing the file name after the
// new extension has been applied to it.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALName::ChangeExtension() C++ member function for the mName data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// Note that the VB version of this function is almost identical. However,
// instead of returning a pointer to a character string, this routine calls
// ALVBCreateString() to build a VB string, which it returns to the
// calling module. Don't use the VB function from C, it will blow up.
// Don't use the C function from VB, because it returns a string pointer,
// which VB doesn't know how to deal with.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALName::ChangeExtension(). See OBJNAME.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" char AL_DLL_FAR * AL_FUNCTION
ALStorageChangeExtension( hALStorage this_object,
char AL_DLL_FAR *new_extension )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageChangeExtension" );
return ( (ALStorage *) this_object )->mName.ChangeExtension( new_extension );
}
#if defined( AL_BUILDING_DLL ) && defined( AL_WINDOWS_GUI ) && !defined( AL_FLAT_MODEL )
extern "C" long AL_FUNCTION
ALStorageChangeExtensionVB( hALStorage this_object,
char AL_DLL_FAR *new_extension )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageChangeExtensionVB" );
char _far * p = ( (ALStorage *) this_object )->mName.ChangeExtension( new_extension );
return ALCreateVBString( p, (unsigned short int) _fstrlen( p ) );
}
#endif
// C TRANSLATION FUNCTION
//
// extern "C" char * ALStorageChangeTrailingChar( hALStorage this_object,
// char new_char )
//
// VB TRANSLATION FUNCTION
//
// extern "C" long ALStorageChangeTrailingCharVB( hALStorage this_object,
// char new_char )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// name you want to test.
//
// new_char : A new final character you want to apply to the
// object name. Often a "funny" character, like '~'.
//
// RETURNS
//
// A string pointer (or VB string) containing the file name after the
// new final character has been applied to it.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALName::ChangeTrailingChar() C++ member function for the mName data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// Note that the VB version of this function is almost identical. However,
// instead of returning a pointer to a character string, this routine calls
// ALVBCreateString() to build a VB string, which it returns to the
// calling module. Don't use the VB function from C, it will blow up.
// Don't use the C function from VB, because it returns a string pointer,
// which VB doesn't know how to deal with.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALName::ChangeTrailingChar(). See OBJNAME.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" char AL_DLL_FAR * AL_FUNCTION
ALStorageChangeTrailingChar( hALStorage this_object, char new_char )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageChangeTrailingChar" );
return ( (ALStorage *) this_object )->mName.ChangeTrailingChar( new_char );
}
#if defined( AL_BUILDING_DLL ) && defined( AL_WINDOWS_GUI ) && !defined( AL_FLAT_MODEL )
extern "C" long AL_FUNCTION
ALStorageChangeTrailingCharVB( hALStorage this_object, char new_char )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageChangeTrailingChar" );
char _far * p = ( (ALStorage *) this_object )->mName.ChangeTrailingChar( new_char );
return ALCreateVBString( p, (unsigned short int) _fstrlen( p ) );
}
#endif
// C TRANSLATION FUNCTION
//
// extern "C" char * ALStorageGetName( hALStorage this_object )
//
// VB TRANSLATION FUNCTION
//
// extern "C" long ALStorageGetNameVB( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// name you want.
//
// RETURNS
//
// A string pointer (or VB string) containing the file name.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALName::GetSafeName() C++ member function for the mName data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// Note that the VB version of this function is almost identical. However,
// instead of returning a pointer to a character string, this routine calls
// ALVBCreateString() to build a VB string, which it returns to the
// calling module. Don't use the VB function from C, it will blow up.
// Don't use the C function from VB, because it returns a string pointer,
// which VB doesn't know how to deal with.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALName::GetSafeName(). See OBJNAME.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" char AL_DLL_FAR * AL_FUNCTION
ALStorageGetName( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetName" );
return (char AL_DLL_FAR *) ( (ALStorage *) this_object )->mName.GetSafeName();
}
#if defined( AL_BUILDING_DLL ) && defined( AL_WINDOWS_GUI ) && !defined( AL_FLAT_MODEL )
extern "C" long AL_FUNCTION ALStorageGetNameVB( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetName" );
const char _far *p = ( (ALStorage *) this_object )->mName.GetSafeName();
return ALCreateVBString( p, (unsigned short int) _fstrlen( p ) );
}
#endif
// C TRANSLATION FUNCTION
//
// extern "C" char * ALStorageGetOldName( hALStorage this_object )
//
// VB TRANSLATION FUNCTION
//
// extern "C" long ALStorageGetOldNameVB( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// old name you want.
//
// RETURNS
//
// A string pointer (or VB string) containing the old file name.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALName::GetSafeOldName() C++ member function for the mName data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// Note that the VB version of this function is almost identical. However,
// instead of returning a pointer to a character string, this routine calls
// ALVBCreateString() to build a VB string, which it returns to the
// calling module. Don't use the VB function from C, it will blow up.
// Don't use the C function from VB, because it returns a string pointer,
// which VB doesn't know how to deal with.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALName::GetSafeOldName(). See OBJNAME.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" char AL_DLL_FAR * AL_FUNCTION
ALStorageGetOldName( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetOldName" );
return (char AL_DLL_FAR *) ( (ALStorage *) this_object )->mName.GetSafeOldName();
}
#if defined( AL_BUILDING_DLL ) && defined( AL_WINDOWS_GUI ) && !defined( AL_FLAT_MODEL )
extern "C" long AL_FUNCTION ALStorageGetOldNameVB( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetOldNameVB" );
const char _far *p = ( (ALStorage *) this_object )->mName.GetSafeOldName();
return ALCreateVBString( p, (unsigned short int) _fstrlen( p ) );
}
#endif
//
// extern "C" int ALStorageGetStatusCode( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// status code you want.
//
// RETURNS
//
// The integer value of the status code. Values of AL_SUCCESS are good,
// values < AL_SUCCESS are bad.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALStatus::GetStatusCode() C++ member function for the mStatus data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// There really isn't too much to know about this function. It just
// returns the current integer status code to the calling routine.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageGetStatusCode( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetStatusCode" );
return ( (ALStorage *) this_object)->mStatus.GetStatusCode();
}
//
// extern "C" int ALStorageSetError( hALArchive this_object,
// int error,
// char *text )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to set the object's status member
// so that it is in an error state.
//
// error : The error code to apply to the object. Values from
// ALDEFS.H are good, but it really doesn't matter as
// long as you use a negative number.
//
// text : The text of the error message you want to associate with
// this error.
//
// RETURNS
//
// Returns the error code that you passed it.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALName::SetError(), as applied to an ALStorage object. For more
// details on how the function actually works, check out OBJNAME.CPP.
//
// All that happens here is that the arguments are checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageSetError( hALStorage this_object,
int error,
char AL_DLL_FAR *text )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetError" );
( (ALStorage *) this_object )->mStatus.SetError( error, text );
return error;
}
// C TRANSLATION FUNCTION
//
// extern "C" char * ALStorageGetStatusString( hALStorage this_object )
//
// VB TRANSLATION FUNCTION
//
// extern "C" long ALStorageGetStatusStringVB( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// status string you want to get.
//
// RETURNS
//
// A string pointer (or VB string) containing the status string. This
// is the short translation string, not the detailed message.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALStatus::GetStatusString() C++ member function for the mStatus data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// Note that the VB version of this function is almost identical. However,
// instead of returning a pointer to a character string, this routine calls
// ALVBCreateString() to build a VB string, which it returns to the
// calling module. Don't use the VB function from C, it will blow up.
// Don't use the C function from VB, because it returns a string pointer,
// which VB doesn't know how to deal with.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALStatus::GetStatusString(). See STATUS.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" char AL_DLL_FAR * AL_FUNCTION
ALStorageGetStatusString( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetStatusString" );
const char *status = ( (ALStorage *) this_object)->mStatus.GetStatusString();
if ( status == 0 )
status = "";
return (char AL_DLL_FAR *) status;
}
#if defined( AL_BUILDING_DLL ) && defined( AL_WINDOWS_GUI ) && !defined( AL_FLAT_MODEL )
extern "C" long AL_FUNCTION ALStorageGetStatusStringVB( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetStatusStringVB" );
const char _far *status = ( (ALStorage *) this_object)->mStatus.GetStatusString();
if ( status == 0 )
status = "";
return ALCreateVBString( status, (unsigned short int) _fstrlen( status ) );
}
#endif
// C TRANSLATION FUNCTION
//
// extern "C" char * ALStorageGetStatusDetail( hALStorage this_object )
//
// VB TRANSLATION FUNCTION
//
// extern "C" long ALStorageGetStatusDetailVB( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object whose
// status detail string you want to get.
//
// RETURNS
//
// A string pointer (or VB string) containing the status string. This
// is the detailed status message, not the short translated string.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to call the
// ALStatus::GetStatusDetail() C++ member function for the mStatus data
// member of class ALStorage. This function checks the handle argument for
// correct type (in debug mode), then casts and calls the C++ function.
//
// Note that the VB version of this function is almost identical. However,
// instead of returning a pointer to a character string, this routine calls
// ALVBCreateString() to build a VB string, which it returns to the
// calling module. Don't use the VB function from C, it will blow up.
// Don't use the C function from VB, because it returns a string pointer,
// which VB doesn't know how to deal with.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALStatus::GetStatusDetail(). See STATUS.CPP for more information.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" char AL_DLL_FAR * AL_FUNCTION
ALStorageGetStatusDetail( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetStatusDetail" );
const char *status = ( (ALStorage *) this_object )->mStatus.GetStatusDetail();
if ( status == 0 )
status = "";
return (char AL_DLL_FAR *) status;
}
#if defined( AL_BUILDING_DLL ) && defined( AL_WINDOWS_GUI ) && !defined( AL_FLAT_MODEL )
extern "C" long AL_FUNCTION
ALStorageGetStatusDetailVB( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetStatusDetailVB" );
const char _far *status = ( (ALStorage *) this_object)->mStatus.GetStatusDetail();
if ( status == 0 )
status = "";
return ALCreateVBString( status, (unsigned short int) _fstrlen( status ) );
}
#endif
//
// extern "C" long ALStorageGetUnixTime( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to retrieve the time/date stamp
// for this object.
// RETURNS
//
// The time/date of the object in unix format. Unix format is
// the format that is actually stored in an archive directory
// to record the object's time stamp.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALTimeDate::GetUnixTime(), as applied the mTimeDate data member
// of the ALStorage object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// You won't learn much about much about the way ALTimeDate::GetUnixTime()
// works by looking at this function. See TIMEDATE.CPP for the
// details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" long AL_FUNCTION
ALStorageGetUnixTime( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetUnixTime" );
return ( (ALStorage *) this_object)->mTimeDate.GetUnixTime();
}
//
// extern "C" long ALStorageToJulian( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to retrieve the time/date stamp
// for this object, in Julian date format.
// RETURNS
//
// The date of the object in julian date format.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALTimeDate::ToJulian(), as applied the mTimeDate data member
// of the ALStorage object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// You won't learn much about much about the way ALTimeDate::ToJulian()
// works by looking at this function. See TIMEDATE.CPP for the
// details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" long AL_FUNCTION
ALStorageToJulian( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageToJulian" );
return ( (ALStorage *) this_object)->mTimeDate.ToJulian();
}
//
// extern "C" void ALStorageFromJulian( hALStorage this_object, long jdn )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to set the date stamp
// for this object, using Julian date format.
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALTimeDate::FromJulian(), as applied the mTimeDate data member
// of the ALStorage object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// You won't learn much about much about the way ALTimeDate::FromJulian()
// works by looking at this function. See TIMEDATE.CPP for the
// details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION
ALStorageFromJulian( hALStorage this_object, long jdn )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageFromJulian" );
( (ALStorage *) this_object)->mTimeDate.FromJulian( jdn );
}
//
// extern "C" void
// ALStorageSetTimeDateFromStruc( hALStorage this_object,
// struct tm AL_DLL_FAR * time_struct )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to set the time/date stamp
// for this object, using C RTL time_struct format
// as our source.
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALTimeDate::SetTimeDate(), as applied the mTimeDate data member
// of the ALStorage object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// You won't learn much about much about the way ALTimeDate::SetTimeDate()
// works by looking at this function. See TIMEDATE.CPP for the
// details.
//
// I don't think this function will be of any value to VB programmers.
// The only place to get this time date structure is from the C run
// time library.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION
ALStorageSetTimeDateFromStruc( hALStorage this_object,
struct tm AL_DLL_FAR * time_struct )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetTimeDateFromStruc" );
AL_ASSERT( time_struct != 0, "Null tm struct passed to ALStorageSetTimeDateFromStruc" );
( (ALStorage *) this_object )->mTimeDate.SetTimeDate( time_struct );
}
//
// extern "C" void
// ALStorageGetStrucFromTimeDate( hALStorage this_object,
// struct tm * time_struct )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to get the time/date stamp
// for this object, with the result going into
// the time date struct used by the C run time library.
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALTimeDate::GetTimeDate(), as applied the mTimeDate data member
// of the ALStorage object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// You won't learn much about much about the way ALTimeDate::GetTimeDate()
// works by looking at this function. See TIMEDATE.CPP for the
// details.
//
// I don't think this function will be of any value to VB programmers.
// The only place to get this time date structure is from the C run
// time library.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION
ALStorageGetStrucFromTimeDate( hALStorage this_object,
struct tm AL_DLL_FAR * time_struct )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetStrucFromTimeDate" );
AL_ASSERT( time_struct != 0, "Null tm struct passed to ALStorageGetStrucFromTimeDate" );
( (ALStorage *) this_object )->mTimeDate.GetTimeDate( time_struct );
}
//
// extern "C" void
// ALStorageSetTimeDateFromUnix( hALStorage this_object,
// long unix_time )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
// We are going to set the time/date stamp
// for this object, using the Unix format time/date
// format as a source.
//
// unix_time : The time date in UNIX format.
//
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALTimeDate::SetTimeDate(), as applied to the mTimeDate data member
// of the ALStorage object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the appropriate
// member function, with lots of casting.
//
// You won't learn much about much about the way ALTimeDate::SetTimeDate()
// works by looking at this function. See TIMEDATE.CPP for the
// details.
//
// The UNIX time/date format is what ArchiveLib uses internally in archives
// created using ALArchiveBase.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION
ALStorageSetTimeDateFromUnix( hALStorage this_object, long unix_time )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSetTimeDateFromUnix" );
( (ALStorage *) this_object )->mTimeDate.SetTimeDate( unix_time );
}
//
// extern "C" int ALStorageIsOpen( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// 1 if the object is open, 0 if it is closed.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::IsOpen().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way ALStorage::IsOpen()
// works by looking at this function. See STORAGE.CPP for the
// details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageIsOpen( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageIsOpen" );
return ( (ALStorage *) this_object )->IsOpen();
}
//
// extern "C" int ALStorageReadChar( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// A byte from 0 to 255 if any valid characters are present,
// AL_END_OF_FILE if there aren't any, or an error code < AL_SUCCESS
// if the file is now in an error state.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::ReadChar().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way ALStorage::ReadChar()
// works by looking at this function. See STORAGE.H for the
// details.
//
// In C++, this function is implemented as an inline function, and it is
// pretty fast. Normally it just has to get a byte from the I/O buffer.
// This isn't the case when using this translation function, so you lose
// some efficiency. The best way to solve the efficiency problem is to
// try to structure your code to use ReadBuffer() instead.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageReadChar( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageReadChar" );
return ( (ALStorage *) this_object )->ReadChar();
}
//
// extern "C" int ALStorageReadShort( hALStorage this_object,
// short int *data )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// data : Pointer to a short int that is going to receive
// the short int read in from the storage object.
//
// RETURNS
//
// AL_SUCCESS if the short int was read in properly. An error code
// < AL_SUCCESS if something bad happened.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::ReadPortableShort().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way
// ALStorage::ReadPortableShort()works by looking at this function.
// See STORAGE.CPP for the details.
//
// This function is designed for reading data that needs to be stored
// in a system independent fashion.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION
ALStorageReadShort( hALStorage this_object, short int AL_DLL_FAR *data )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageReadShort" );
AL_ASSERT( data != 0, "Null pointer passed to function" );
return ( (ALStorage *) this_object )->ReadPortableShort( *data );
}
//
// extern "C" int ALStorageReadLong( hALStorage this_object,
// long *data )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// data : Pointer to a long int that is going to receive
// the long int read in from the storage object.
//
// RETURNS
//
// AL_SUCCESS if the long int was read in properly. An error code
// < AL_SUCCESS if something bad happened.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::ReadPortableLong().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way
// ALStorage::ReadPortableLong()works by looking at this function.
// See STORAGE.CPP for the details.
//
// This function is designed for reading data that needs to be stored
// in a system independent fashion.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION
ALStorageReadLong( hALStorage this_object, long AL_DLL_FAR *data )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageReadLong" );
AL_ASSERT( data != 0, "Null pointer passed to function" );
return ( (ALStorage *) this_object )->ReadPortableLong( *data );
}
//
// extern "C" int ALStorageWriteLong( hALStorage this_object,
// long data )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// data : A long int that is going to be written out to
// to the storage object in a system independent manner.
//
// RETURNS
//
// AL_SUCCESS if the long int was written out properly. An error code
// < AL_SUCCESS if something bad happened.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::WritePortableLong().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way
// ALStorage::WritePortableLong()works by looking at this function.
// See STORAGE.CPP for the details.
//
// This function is designed for writing data that needs to be stored
// in a system independent fashion.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageWriteLong( hALStorage this_object,
long data )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageWriteLong" );
return ( (ALStorage *) this_object)->WritePortableLong( data );
}
//
// extern "C" int ALStorageWriteShort( hALStorage this_object,
// short data )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// data : A short int that is going to be written out to
// to the storage object in a system independent manner.
//
// RETURNS
//
// AL_SUCCESS if the short int was written out properly. An error code
// < AL_SUCCESS if something bad happened.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::WritePortableShort().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way
// ALStorage::WritePortableShort()works by looking at this function.
// See STORAGE.CPP for the details.
//
// This function is designed for writing data that needs to be stored
// in a system independent fashion.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageWriteShort( hALStorage this_object,
short int data )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageWriteShort" );
return ( (ALStorage *) this_object)->WritePortableShort( data );
}
//
// extern "C" int ALStorageWriteString( hALStorage this_object,
// char *string )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// string : A string that we are going to write out to the
// storage object in a system independent manner.
//
// RETURNS
//
// AL_SUCCESS if the string was written out properly. An error code
// < AL_SUCCESS if something bad happened.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::WriteString().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way
// ALStorage::WriteString()works by looking at this function.
// See STORAGE.CPP for the details.
//
// This function is designed for writing variable length blocks of data
// to archives in a consistent fashion.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageWriteString( hALStorage this_object,
char AL_DLL_FAR *string )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageWriteString" );
AL_ASSERT( string != 0, "Passing null string in ALStorageWriteString()" );
return ( (ALStorage *) this_object )->WriteString( string );
}
//
// extern "C" void ALStorageInitCrc32( hALStorage this_object,
// long seed )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// seed : The initial value for the 32 bit CRC. In C++, the
// default parameter is 0xffffffffL. This is a good
// one to use, and it gives you ARJ/PKWARE compatibility.
//
// RETURNS
//
// Nothing.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::InitCrc32().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
//
// You won't learn much about much about the way
// ALStorage::InitCrc32()works by looking at this function.
// See STORAGE.CPP for the details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" void AL_FUNCTION ALStorageInitCrc32( hALStorage this_object,
long seed )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageInitCrc32" );
( (ALStorage *) this_object )->InitCrc32( seed );
}
//
// extern "C" long ALStorageTell( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// A long value indicating where the read/write pointer to the storage
// object is presently located.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::Tell(). It works a lot like the C RTL tell() or
// ftell() functions.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The long result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::Tell()works by looking at this function.
// See STORAGE.CPP for the details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" long AL_FUNCTION ALStorageTell( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageTell" );
return ( (ALStorage *) this_object )->Tell();
}
//
// extern "C" size_t
// ALStorageReadBuffer( hALStorage this_object,
// unsigned char *buffer,
// size_t length )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// buffer : A pointer to a buffer. Specified as unsigned
// char, but the type doesn't really matter.
//
// length : The number of bytes you want to read into the buffer.
//
// RETURNS
//
// A number >= 0 indicates that number of byte were read into the buffer.
// A number <0 is a status code corresponding to an error.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::ReadBuffer(). It works a lot like the C RTL read() or
// fread() functions.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The short int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::ReadBuffer()works by looking at this function.
// See STORAGE.CPP for the details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" size_t AL_FUNCTION
ALStorageReadBuffer( hALStorage this_object,
unsigned char AL_DLL_FAR *buffer,
size_t length )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageReadBuffer" );
AL_ASSERT( buffer != 0, "Passed a null buffer to ALStorageReadBuffer" );
return ( (ALStorage * ) this_object )->ReadBuffer( buffer, length );
}
//
// extern "C" size_t
// ALStorageWriteBuffer( hALStorage this_object,
// unsigned char *buffer,
// size_t length )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// buffer : A pointer to a buffer. Specified as unsigned
// char, but the type doesn't really matter.
//
// length : The number of bytes you want to write from the buffer.
//
// RETURNS
//
// A number >= 0 indicates that number of bytes were written to the object.
// A number <0 is a status code corresponding to an error.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::WriteBuffer(). It works a lot like the C RTL write() or
// fwrite() functions.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The short int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::WriteBuffer()works by looking at this function.
// See STORAGE.CPP for the details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" size_t AL_FUNCTION
ALStorageWriteBuffer( hALStorage this_object,
unsigned char AL_DLL_FAR *buffer,
size_t length )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageWriteBuffer" );
AL_ASSERT( buffer != 0, "Passed a null buffer to ALStorageWriteBuffer" );
return ( (ALStorage * ) this_object )->WriteBuffer( buffer, length );
}
//
// extern "C" long ALStorageGetCrc32( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// A long value corresponding to the current CRC-32 of the storage
// object. A value of -1 indicates that the CRC is unknown.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::GetCrc32(). This is just a simple access routine
// used to get the value of a private data member.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The long result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::GetCrc32()works by looking at this function.
// See STORAGE.CPP for the details.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" long AL_FUNCTION ALStorageGetCrc32( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetCrc32" );
return ( (ALStorage *) this_object )->GetCrc32();
}
//
// extern "C" int ALStorageClose( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// A value of AL_SUCCESS if the object was closed properly. A value
// of < AL_SUCCESS indicates an error state of some sort.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::Close(). This is virtual function that will generally
// be implemented by a derived class.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::Close()works by looking at this function.
// See MEMSTORE.CPP or FILESTOR.CPP for the details. The base
// class version in STORAGE.CPP has good information as well.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageClose( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageClose" );
return ( (ALStorage *) this_object )->Close();
}
//
// extern "C" int ALStorageCreate( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// A value of AL_SUCCESS if the object was created properly. A value
// of < AL_SUCCESS indicates an error state of some sort.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::Create(). This is virtual function that will generally
// be implemented by a derived class.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::Create()works by looking at this function.
// See MEMSTORE.CPP or FILESTOR.CPP for the details. The base
// class version in STORAGE.CPP has good information as well.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageCreate( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageCreate" );
return ( (ALStorage *) this_object )->Create();
}
//
// extern "C" int ALStorageFlushBuffer( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// A value of AL_SUCCESS if flush operation worked properly. A return
// of < AL_SUCCESS indicates an error state of some sort.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::FlushBuffer(). This is virtual function that will generally
// be implemented by a derived class. FlushBuffer() is used internally
// by ALStorage to flush the buffer when a write operation overflows
// the I/O buffer. It can be called externally to force the buffer out
// to the physical storage medium.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::FlushBuffer()works by looking at this function.
// See MEMSTORE.CPP or FILESTOR.CPP for the details. The base
// class version in STORAGE.CPP has good information as well.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageFlushBuffer( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageFlushBuffer" );
return ( (ALStorage *) this_object )->FlushBuffer();
}
//
// extern "C" int ALStorageLoadBuffer( hALStorage this_object,
// long address )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// address : The address that we want to load data from.
//
// RETURNS
//
// An integer >= 0 if the load operation worked properly. A return
// of < AL_SUCCESS indicates an error state of some sort.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::LoadBuffer(). This is virtual function that will generally
// be implemented by a derived class. LoadBuffer() is used internally
// by ALStorage to refresh the I/O buffer when a read operation underflows
// the I/O buffer. It can be called externally to force a load from a
// specific address, equivalent to a Seek() call.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way
// ALStorage::LoadBuffer()works by looking at this function.
// See MEMSTORE.CPP or FILESTOR.CPP for the details. The base
// class version in STORAGE.CPP has good information as well.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageLoadBuffer( hALStorage this_object,
long address )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageLoadBuffer" );
return ( (ALStorage *) this_object )->LoadBuffer( address );
}
//
// extern "C" int ALStorageOpen( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// RETURNS
//
// AL_SUCCESS if the open operation worked properly. A return
// of < AL_SUCCESS indicates an error state of some sort.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::Open(). This is virtual function that will generally
// be implemented by a derived class. Open() opens the physical storage
// device associated with the ALStorageObject, and reads any storage
// time date stamp and other attributes.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way ALStorage::Open()
// works by looking at this function. See MEMSTORE.CPP or FILESTOR.CPP
// for the details. The base class version in STORAGE.CPP also has
// some useful information.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageOpen( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageOpen" );
return ( (ALStorage *) this_object )->Open();
}
//
// extern "C" int ALStorageRename( hALStorage this_object,
// char *new_name,
// int delete_on_clash )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// new_name : The new name you want to assign to the storage
// object. You can pass a parameter of 0 here to
// indicate that you have already assigned the new
// name to the mName member of the storage object.
//
// delete_on_clash : If it turns out that the storage object name is
// already in use, you have a clash. This can happen,
// for example, when renaming a file to a backup.
// Setting this flag indicates that if there is a clash,
// you want to delete the clashing file and let
// your object use the name.
//
// RETURNS
//
// AL_SUCCESS if the rename operation worked properly. AL_RENAME_ERROR
// may be returned by derived classes if specific problems occur.
// Additional error codes < AL_SUCCESS may be returned if some other
// error was detected.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::Rename(). This is virtual function that will generally
// be implemented by a derived class. Rename() operates on the operating
// system level to reassign the name of an object, such as a file.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way ALStorage::Rename()
// works by looking at this function. See FILESTOR.CPP for the details.
// MEMSTORE.CPP doesn't really have any useful info, since ALMemory
// objects don't have a name defined at the O/S level.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageRename( hALStorage this_object,
char *new_name,
int delete_on_clash )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageRename" );
AL_ASSERT( new_name != 0, "NULL new_name in ALStorageRename" );
return ( (ALStorage *) this_object )->Rename( new_name, delete_on_clash );
}
//
// extern "C" int ALStorageRenameToBackup( hALStorage this_object,
// int delete_on_clash )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// delete_on_clash : If it turns out that the new storage name is
// already in use, you have a clash. This can happen,
// for example, when renaming a file to a backup.
// Setting this flag indicates that if there is a clash,
// you want to delete the clashing file and let
// your object use the name.
//
// RETURNS
//
// AL_SUCCESS if the rename operation worked properly. AL_RENAME_ERROR
// may be returned by derived classes if specific problems occur.
// Additional error codes < AL_SUCCESS may be returned if some other
// error was detected.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::RenameToBackup(). This is virtual function that will
// generally be implemented by a derived class. RenameToBackup()
// operates on the operating system level to reassign the name of an object, such as a file.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way ALStorage::RenameToBackup()
// works by looking at this function. See FILESTOR.CPP for the details.
// MEMSTORE.CPP doesn't really have any useful info, since ALMemory
// objects don't have a name defined at the O/S level. It just approves of
// all name change requests.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageRenameToBackup( hALStorage this_object,
int delete_on_clash )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageRenameToBackup" );
return ( (ALStorage *) this_object )->RenameToBackup( delete_on_clash );
}
//
// extern "C" int ALStorageSeek( hALStorage this_object,
// long address )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// address : The address to seek to within the storage object.
//
// RETURNS
//
// AL_SUCCESS if the seek operation worked properly. AL_SEEK_ERROR
// may be returned by derived classes if specific problems occur.
// Additional error codes < AL_SUCCESS may be returned if some other
// error was detected.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::Seek(). This is virtual function that will
// generally be implemented by a derived class. ALStorage::Seek() often
// operates on the operating system level to seek to a position in a
// physical or O/S object.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way ALStorage::Seek()
// works by looking at this function. See FILESTOR.CPP and MEMSTORE.CPP
// for some insight.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageSeek( hALStorage this_object,
long address )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageSeek" );
return ( (ALStorage *) this_object )->Seek( address );
}
//
// extern "C" int ALStorageUnRename( hALStorage this_object,
// int delete_on_clash )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// delete_on_clash : If it turns out that the new storage name is
// already in use, you have a clash. This can happen,
// for example, when renaming a file to a backup.
// Setting this flag indicates that if there is a clash,
// you want to delete the clashing file and let
// your object use the name.
//
// RETURNS
//
// AL_SUCCESS if the rename operation worked properly. AL_RENAME_ERROR
// may be returned by derived classes if specific problems occur.
// Additional error codes < AL_SUCCESS may be returned if some other
// error was detected.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::UnRename(). This is virtual function that will
// generally be implemented by a derived class. ALStorage::UnRename()
// operates on the operating system level to reassign the name of an object,
// such as a file.
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), the handle is cast to the correct type, and
// a call is made to the C++ member function. The int result from
// the member function is returned unchanged to the calling C or VB
// procedure.
//
// You won't learn much about much about the way ALStorage::UnRename()
// works by looking at this function. See FILESTOR.CPP for the details.
// MEMSTORE.CPP doesn't really have any useful info, since ALMemory
// objects don't have a name defined at the O/S level. It just approves of
// all name change requests.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageUnRename( hALStorage this_object,
int delete_on_clash )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageUnRename" );
return ( (ALStorage *) this_object )->UnRename( delete_on_clash );
}
//
// extern "C" int ALStorageWriteChar( hALStorage this_object,
// int c )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) an ALStorage object.
//
// c : A character to write.
//
// RETURNS
//
// A byte from 0 to 255 if the write was successful. Various error
// codes < AL_SUCCESS if the write failed.
//
// DESCRIPTION
//
// This is the C/VB wrapper function for the C++ member function
// ALStorage::WriteChar().
//
// All that happens here is that the handle argument is checked for correct
// type (when in debug mode), and a call is made to the member function.
// The integer result is returned to the calling procedure as is.
//
// You won't learn much about much about the way ALStorage:WriteChar()
// works by looking at this function. See STORAGE.H for the
// details.
//
// In C++, this function is implemented as an inline function, and it is
// pretty fast. Normally it just has to put a byte into the I/O buffer.
// This isn't the case when using this translation function, so you lose
// some efficiency. The best way to solve the efficiency problem is to
// try to structure your code to use WriteBuffer() instead.
//
// REVISION HISTORY
//
// May 24, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageWriteChar( hALStorage this_object,
int c )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageWriteChar" );
return ( (ALStorage *) this_object )->WriteChar( c );
}
//
// extern "C" int ALStorageGetType( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to get the type of.
//
// RETURNS
//
// The integer storage type, as defined in ALDEFS.H. AL_MEMORY_OBJECT
// and AL_FILE_OBJECT are popular choices. AL_UNDEFINED is possible
// as well.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ data member ALStorage::miStorageObjectType. This function checks
// its handle argument for correct type (in debug mode), then casts
// and accesses ALStorage::miStorageObjectType. It returns the integer
// result back to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALStorage::miStorageObjectType. See STORAGE.H for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageGetType( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetType" );
return ( (ALStorage *) this_object )->miStorageObjectType;
}
//
// extern "C" unsigned short int
// ALStorageGetDosTime( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to get the DOS time for.
//
// RETURNS
//
// An unsigned int that has the file access time in the format
// used by _dos_setfileattr().
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALTimeDate::GetDosTime for the mTimeDate
// member of class ALStorage. This function checks its handle argument for
// correct type (in debug mode), then casts and calls
// ALTimeDate::GetDosTime. It returns the short integer result back
// to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALTimeDate::GetDosTime. See TIMEDATE.CPP for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
#if !defined( AL_WIN32S )
extern "C" unsigned short int AL_FUNCTION
ALStorageGetDosTime( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetDosTime" );
return ( (ALStorage *) this_object )->mTimeDate.GetDosTime();
}
#endif
//
// extern "C" unsigned short int
// ALStorageGetDosDate( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to get the DOS date for.
//
// RETURNS
//
// An unsigned int that has the file access date in the format
// used by _dos_setfileattr().
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALTimeDate::GetDosDate for the mTimeDate
// member of class ALStorage. This function checks its handle argument for
// correct type (in debug mode), then casts and calls
// ALTimeDate::GetDosDate. It returns the short integer result back
// to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALTimeDate::GetDosDate. See TIMEDATE.CPP for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
#if !defined( AL_WIN32S )
extern "C" unsigned short int AL_FUNCTION
ALStorageGetDosDate( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetDosDate" );
return ( (ALStorage *) this_object )->mTimeDate.GetDosDate();
}
#endif
//
// extern "C" int ALStorageValidTimeDate( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to check for validity.
//
// RETURNS
//
// A true or false, to indicate whether a valid time has been
// loaded into the mTimeDate member of the ALStorage object.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALTimeDate::Valid() for the mTimeDate
// member of class ALStorage. This function checks its handle argument for
// correct type (in debug mode), then casts and calls
// ALTimeDate::Valid(). It returns the integer result back
// to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALTimeDate::Valid(). See TIMEDATE.H for the details on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
extern "C" int AL_FUNCTION ALStorageValidTimeDate( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageValidTimeDate" );
return ( (ALStorage *) this_object )->mTimeDate.Valid();
}
//
// extern "C" DWORD ALStorageGetWin32Attributes( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to get the Win32s file attributes for.
//
// RETURNS
//
// A DWORD containing the Win32s attributes for the selected
// storage object. The attributes are in the format needed
// by the SetFileAttributes() function.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALFileAttributes::GetWin32Attributes() for the
// mAttributes member of class ALStorage. This function checks its handle
// argument for correct type (in debug mode), then casts and calls
// ALAttributes::GetWin32Attributes(). It returns the long result back
// to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALAttributes::GetWin32Attributes). See FILEATTR.CPP for the details
// on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
#if defined( AL_WIN32S )
extern "C" DWORD AL_FUNCTION
ALStorageGetWin32Attributes( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetWin32Attributes" );
return ( (ALStorage *) this_object )->mAttributes.GetWin32Attributes();
}
#endif
//
// extern "C" unsigned short int
// ALStorageGetDosAttributes( hALStorage this_object )
//
// ARGUMENTS:
//
// this_object : A handle for (pointer to) the storage object that
// you want to get the DOS file attributes for.
//
// RETURNS
//
// A short int containing the DOS attributes for the selected
// storage object. The attributes are returned in the format
// needed by the _dos_setfileattr() function.
//
// DESCRIPTION
//
// This is the C/VB translation routine that allows you to access the
// C++ member function ALFileAttributes::GetDosAttributes() for the
// mAttributes member of class ALStorage. This function checks its handle
// argument for correct type (in debug mode), then casts and calls
// ALAttributes::GetDosAttributes(). It returns the short result back
// to the calling procedure unchanged.
//
// The C/VB translation code doesn't offer much insight into the operation
// of ALAttributes::GetDosAttributes). See FILEATTR.CPP for the details
// on that.
//
// REVISION HISTORY
//
// May 25, 1994 1.0A : First release
//
#if !defined( AL_WIN32S )
extern "C" unsigned short int AL_FUNCTION
ALStorageGetDosAttributes( hALStorage this_object )
{
AL_ASSERT_OBJECT( this_object, ALStorage, "ALStorageGetDosAttributes" );
return ( (ALStorage *) this_object )->mAttributes.GetDosAttributes();
}
#endif
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