ISave Class Reference

#include <ioapi.h>

Class Description

See also

Loading and Saving Plug-in Data, Guidelines for Handling Character Strings, Class ILoad, Class ClassDesc, Class ClassDirectory, Class Interface.

Description:

This class provides methods to save data to disk.

Note: It is not valid to write two CStrs in the same chunk of a 3ds Max file, since ILoad::ReadCStringChunk() sets the size for the string to the ChunkSize. However it is possible to write other data, such as two ints, into the same chunk.

Note about member alignment: Please make sure that when you save data from your plugin you save individual data members using a chunk ID instead of saving the image of a class. Saving (and loading) a class image puts you at risk of running into member alignment problems and as such could potentially corrupt saved files. File IO would be put further at risk when you keep Intel's IA-64 architecture in mind which depends on member alignment. What you should not do is outlined in the following example when loading a class image; iload->Read(&myclass, sizeof(MyClass), &ab);

Once you change the class in such a way that it affects the data size you run the risk of having to support different versions, file IO incompatibility, and member alignment issues.

The following global function is not part of this class but is available for use:

Inheritance diagram for ISave:

Public Member Functions
virtual	~ISave ()
virtual int	GetRefID (void *ptarg)=0
virtual void	BeginChunk (USHORT id)=0
virtual void	EndChunk ()=0
virtual int	CurChunkDepth ()=0
IOResult	WriteVoid (const void *buf, ULONG nbytes, ULONG *nwrit)
IOResult	WriteEnum (const void *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const char *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const wchar_t *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const int *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const unsigned int *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const INT64 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const UINT64 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const float *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const double *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const short *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const unsigned short *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const long *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const unsigned long *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const BYTE *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const bool *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Point2 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Point3 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Point4 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const AColor *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Color *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Matrix2 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Matrix3 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Box2 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Box3 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const MNVert *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const TVPatch *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Face *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Class_ID *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const VertMove *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const FaceCreate *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const FaceRemap *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const FaceChange *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const FaceSmooth *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const UVVertSet *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const TVFace *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Interval *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const AngAxis *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Quat *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Ray *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const ScaleValue *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const RotationValue *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const FBox2 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const HookPoint *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const PolyPt *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const bindShape *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const EPMapVert *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const EPMapPatch *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const EPMapUVVert *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const RandGenerator *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Interface_ID *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const BlockKeysClass *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Color24 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Color48 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const Color64 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const POINT *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const WINDOWPLACEMENT *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const range *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const MaxSDK::AssetManagement::AssetId *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const ParamType2 *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const FloatChange *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const VertOffset *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const ParticleID *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const PreciseTimeValue *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const DeviceRect *buf, ULONG nbytes, ULONG *nwrit)
IOResult	Write (const IPoint2 *buf, ULONG nbytes, ULONG *nwrit)
virtual IOResult	WriteWString (const char *str)=0
virtual IOResult	WriteWString (const wchar_t *str)=0
virtual IOResult	WriteCString (const char *str)=0
virtual IOResult	WriteCString (const wchar_t *str)=0
virtual FileIOType	DoingWhat ()=0
virtual DWORD	SavingVersion () const
virtual USHORT	GetClassDescID (ReferenceMaker *rm)
virtual INT_PTR	Execute (int cmd, ULONG_PTR arg1=0, ULONG_PTR arg2=0, ULONG_PTR arg3=0)
virtual const MCHAR *	FileName ()
virtual IOResult	SaveAssetMetaData (const MaxSDK::AssetManagement::AssetId &assetId)
virtual bool	SaveAssetAsAssetIDGuid ()
virtual UINT	CodePage () const
Public Member Functions inherited from InterfaceServer
virtual UtilExport	~InterfaceServer ()
	Destructor. More...
virtual UtilExport BaseInterface *	GetInterface (Interface_ID id)

Additional Inherited Members
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
	Standard new operator used to allocate objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e)
	Standard new operator used to allocate objects if there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate objects that takes the type of memory, filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate arrays of objects. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void	operator delete (void *ptr)
	Standard delete operator used to deallocate an object If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an object If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an object that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, void *placement_ptr)
	Placement new operator. More...
static UtilExport void	operator delete (void *ptr, void *placement_ptr)
	Placement delete operator. More...
static UtilExport void *	aligned_malloc (size_t size, size_t alignment)
	Allocates memory on a specified alignment boundary. More...
static UtilExport void *	aligned_realloc (void *ptr, size_t size, size_t alignment)
	Reallocates memory on a specified alignment boundary. More...
static UtilExport void	aligned_free (void *ptr)
	Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...

Constructor & Destructor Documentation

virtual ~ISave ( )

inlinevirtual

{};

Member Function Documentation

virtual int GetRefID ( void *  ptarg )

pure virtual

Remarks

This method is not normally used because the reference hierarchy is saved automatically. In certain cases however this method is quite useful. This method is used in saving a pointer to some object (or a table of pointers). This is a pointer to one of the objects that the scene saves with the reference hierarchy, but it is not a pointer that itself is a reference.

Parameters

ptarg

The pointer to save.

Returns

The id that may be saved to disk.

virtual void BeginChunk ( USHORT  id )

pure virtual

Remarks

This method is used to begin a chunk. The ID passed need only be unique within the plug-ins data itself.

Parameters

id	The id for the chunk.

virtual void EndChunk ( )

pure virtual

Remarks

This method is used to end a chunk, and back-patch the length.

virtual int CurChunkDepth ( )

pure virtual

Remarks

This method is used internally for checking balanced BeginChunk/EndChunk.

IOResult WriteVoid ( const void *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

Remarks

This method writes a block of bytes to the output stream.

Parameters

buf	The buffer to write.
nbytes	The number of bytes to write.
nwrit	The number of bytes actually written.

Returns

IO_OK - The write was acceptable - no errors.

IO_ERROR - This is returned if an error occurred. Note that the plug-in should not put up a message box if a write error occurs. It should simply return the error status. This prevents a overabundance of messages from appearing.

{return Write((void*)buf, nbytes, nwrit);}

IOResult WriteEnum ( const void *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{DbgAssert(nbytes == sizeof(int)); return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const char *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

    {
        DbgAssert( buf == NULL || strlen(buf) <= nbytes);
        return Write((void*)buf, nbytes, nwrit);
    }

IOResult Write ( const wchar_t *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

    {
        DbgAssert( buf == NULL || wcslen(buf) <= nbytes);
        return Write((void*)buf, nbytes, nwrit);
    }

IOResult Write ( const int *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const unsigned int *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const INT64 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const UINT64 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const float *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const double *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const short *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const unsigned short *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const long *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const unsigned long *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const BYTE *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const bool *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Point2 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Point3 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Point4 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const AColor *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Color *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Matrix2 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Matrix3 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Box2 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Box3 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const MNVert *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const TVPatch *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Face *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Class_ID *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const VertMove *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const FaceCreate *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const FaceRemap *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const FaceChange *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const FaceSmooth *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const UVVertSet *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const TVFace *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Interval *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const AngAxis *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Quat *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Ray *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const ScaleValue *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const RotationValue *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const FBox2 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const HookPoint *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const PolyPt *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const bindShape *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const EPMapVert *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const EPMapPatch *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const EPMapUVVert *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const RandGenerator *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Interface_ID *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const BlockKeysClass *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Color24 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Color48 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const Color64 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const POINT *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const WINDOWPLACEMENT *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const range *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const MaxSDK::AssetManagement::AssetId *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const ParamType2 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const FloatChange *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const VertOffset *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const ParticleID *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const PreciseTimeValue *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const DeviceRect *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

IOResult Write ( const IPoint2 *  buf, ULONG  nbytes, ULONG *  nwrit  )

inline

{return Write((void*)buf, nbytes, nwrit);}

virtual IOResult WriteWString ( const char *  str )

pure virtual

Remarks

This method is used to write wide character strings.

Parameters

str	The string to write. The string must be ACP encoded.

Returns

IO_OK - The write was acceptable - no errors.

IO_ERROR - This is returned if an error occurred.

virtual IOResult WriteWString ( const wchar_t *  str )

pure virtual

Remarks

This method is used to write wide character strings.

Parameters

str	The string to write.

Returns

IO_OK - The write was acceptable - no errors.

IO_ERROR - This is returned if an error occurred.

virtual IOResult WriteCString ( const char *  str )

pure virtual

Remarks

This method is used to write single byte character strings.

Parameters

str	The string to write. The string must be ACP encoded.

Returns

IO_OK - The write was acceptable - no errors.

IO_ERROR - This is returned if an error occurred.

virtual IOResult WriteCString ( const wchar_t *  str )

pure virtual

Remarks

This method is used to write single byte character strings.

Parameters

str	The string to write.

Returns

IO_OK - The write was acceptable - no errors.

IO_ERROR - This is returned if an error occurred.

virtual FileIOType DoingWhat ( )

pure virtual

Remarks

Determines if we are saving a standard 3ds Max file (.MAX) or a material library (.MAT).

Returns

One of the following values:

IOTYPE_MAX

IOTYPE_MATLIB

virtual DWORD SavingVersion ( ) const

inlinevirtual

Remarks

This method returns a value to indicate the current version of the file being saved. It returns 0 for the current version, MAX_RELEASE_R12 for 3ds Max 2010, etc. Call this method to determine the format in which to save the data.

• Adding a new chunk (unknown to the previous version) should be fine. Plug-ins should be written to skip over unknown chunks.
• Removing a chunk is not fine. Never delete a chunk id. Plug-ins need to be prepared to save out the data corresponding to the old chunk id when this method returns the version of a previous 3ds Max release.
• Changing the contents of an existent chunk is not fine, since it can break file compatibility. Add a new chunk to store the modified data structure, and keep the code that loads the old chunk. Be prepared to convert the old data to the new format if that makes sense.

See also

GetSavingVersion(), Version Macros

{ return  0; }

virtual USHORT GetClassDescID ( ReferenceMaker *  rm )

inlinevirtual

Remarks

This method is available in release 3.0 and later only.

This method returns a load reference ID for the given Reference Maker's ClassDesc object in the ClassDirectory stream.

Parameters

rm	Points to the reference maker.

Default Implementation:

{ return 0xffff; }

{ return NO_CLASSDESC_ID_RETURNED; }

virtual INT_PTR Execute ( int  cmd, ULONG_PTR  arg1 = 0, ULONG_PTR  arg2 = 0, ULONG_PTR  arg3 = 0  )

inlinevirtual

{ return 0; }

virtual const MCHAR* FileName ( )

inlinevirtual

Remarks

Returns the name of the scene file being saved.

{ return NULL; }

virtual IOResult SaveAssetMetaData ( const MaxSDK::AssetManagement::AssetId &  assetId )

inlinevirtual

Remarks

This method is used by Asset Manager to save to the scene file the asset meta data.

Parameters

assetId

The id for the asset.

Returns

A return value of IO_ERROR indicates an error occurred, otherwise IO_OK.

{ return IO_OK; }

virtual bool SaveAssetAsAssetIDGuid ( )

inlinevirtual

Remarks

This method is used to tell when to store an asset as a guid rather than as the asset filename.

Returns

A return value of true indicates to store eassets as guids, otherwise as the asset filename.

{ return false; }

virtual UINT CodePage ( ) const

inlinevirtual

{ return (MAX_RELEASE >= MAX_RELEASE_R15_ALPHA_UNICODE_UNICODE) ? CP_UTF8 : CP_ACP; }