Bitmap Class Reference

#include <bitmap.h>

Class Description

Class for image input and output.

Description:

The Bitmap class is the bitmap itself. All image access is done through this class. The Bitmap class has methods to retrieve properties of the bitmap such as image width, height, whether it is dithered, has an alpha channel, etc. There are methods to retrieve and store pixels from the image. Additional methods allow a developer to copy bitmaps. This class also has methods to open outputs and write multi-frame files. All methods of this class are implemented by the system.

Examples

The following is some examples of how to write some files out to disk: To write a single image to a file/device, first create the Create BitmapInfo class:

BitmapInfo bi;

Then define the output file or device:

bi.SetName("file.tga");

or use the BitmapManager:

BitmapManager::SelectFileOutput( ... &bi ...)

Then define your parameters for the Bitmap:

bi.SetWidth(x)
bi.SetHeight(y)
etc...

Then create the Bitmap:

Bitmap* map = BitmapManager::Create(&bi);

Then do something with the bitmap:

map->Fill({0,0,0});

Then you actually open, write and close the bitmap:

map->OpenOutput(&bi);
map->Write(&bi);
map->Close(&bi);
map->DeleteThis();

To write a multi-frame file, just keep doing something different to the Bitmap and keep writing.

To write a sequence of images to a file/device. Create BitmapInfo class

BitmapInfo bi;

Define the output file/device, either directly

bi.SetName(_T("E:\Renders\file.tga"));

or using the user interface.

BitmapManager::SelectFileOutput( ... &bi ...);

The customize or define the BitmapInfo:

bi.SetWidth(x)
bi.SetHeight(y)
bi.SetFirstFrame(0)
bi.SetLastFrame(29)
etc...

Then create the Bitmap

Bitmap* map = BitmapManager::Create(&bi);

Then open the Bitmap for writing

map->OpenOutput(&bi);
for (int x = 0; x < 29; x++)
{
    ## Do something to image...
    map->Write(&bi,x);
}
map->Close(&bi);
map->DeleteThis();

Note that in a localized environment there is no need to call BitmapInfo::SetDevice. This is because calling Bitmap::OpenOutput will automatically determine the device type or BitmapIO type based off of the extension of the filename. Another alternative to manually setting the device type that even works in a localized environment is to call BitmapInfo::FixDeviceName which will find the correct BitmapIO type based off of the extension.

Note: You can add any number of outputs to a bitmap. Just keep calling map->OpenInput() with different outputs (Targa file AND Frame Buffer for instance). To write or close a specific output, use Write() and Close(). To write and close them all at once, use WriteAll() and CloseAll().

It is ok to use WriteAll() and CloseAll() if you have just one output defined.

Method Groups:

See Method Groups for Class Bitmap.

See also

Class BitmapManager, Class BitmapInfo, Class BitmapStorage, Class GBuffer, Working with Bitmaps.

Inheritance diagram for Bitmap:

Public Member Functions
BitmapManager *	Manager ()
BMMExport int	Create (BitmapInfo *bi)
BMMExport BOOL	FixDeviceName (BitmapInfo *bi)
int	MapReady ()
BMMExport void	AddOutput (BitmapIO *out)
BMMExport void	RemoveOutput (BitmapIO *out, BOOL deleteOutput=TRUE)
BMMExport BitmapIO *	FindOutput (BitmapInfo *bi)
BMMExport PAVIFILE	GetPaviFile (BitmapInfo *bi)
void *	GetVFBData ()
void	SetVFBData (void *vfb)
BMMExport void	DeleteThis ()
DWORD	Flags ()
void	SetFlag (DWORD flag)
void	ToggleFlag (DWORD flag)
void	ClearFlag (DWORD flag)
int	Width ()
int	Height ()
float	Aspect ()
float	Gamma ()
int	Paletted ()
int	IsDithered ()
int	PreMultipliedAlpha ()
int	HasAlpha ()
int	IsHighDynamicRange ()
int	MaxRGBLevel ()
int	MaxAlphaLevel ()
void	UseScaleColors (int on)
int	ScaleColors ()
void	ClampScaleColor (BMM_Color_64 &out, const BMM_Color_fl &in)
void	ClampScaleColorA (BMM_Color_64 &out, const BMM_Color_fl &in)
int	Put16Gray (int x, int y, int pixels, WORD *ptr)
int	Put16Gray (int x, int y, int pixels, float *ptr)
void *	GetStoragePtr (int *type)
void *	GetAlphaPtr (int *type)
int	Get16Gray (int x, int y, int pixels, WORD *ptr)
int	Get16Gray (int x, int y, int pixels, float *ptr)
int	GetPixels (int x, int y, int pixels, BMM_Color_64 *ptr)
int	GetPixels (int x, int y, int pixels, BMM_Color_fl *ptr)
BMMExport int	PutPixels (int x, int y, int pixels, BMM_Color_64 *ptr)
BMMExport int	PutPixels (int x, int y, int pixels, BMM_Color_fl *ptr)
int	GetLinearPixels (int x, int y, int pixels, BMM_Color_64 *ptr)
int	GetLinearPixels (int x, int y, int pixels, BMM_Color_fl *ptr)
int	GetIndexPixels (int x, int y, int pixels, BYTE *ptr)
int	PutIndexPixels (int x, int y, int pixels, BYTE *ptr)
int	CropImage (int width, int height, BMM_Color_64 fillcolor)
int	CropImage (int width, int height, BMM_Color_fl fillcolor)
int	CropImage (int width, int height, int fillindex)
int	ResizeImage (int width, int height, int newpalette)
int	CopyImage (Bitmap *from, int operation, BMM_Color_64 fillcolor, BitmapInfo *bi=NULL)
int	CopyImage (Bitmap *from, int operation, BMM_Color_fl fillcolor, BitmapInfo *bi=NULL)
int	CopyImage (Bitmap *from, int operation, int fillindex)
int	GetPalette (int start, int count, BMM_Color_48 *ptr)
int	SetPalette (int start, int count, BMM_Color_48 *ptr)
BMMExport void	FilmGrain (float grain, BOOL mask, PBITMAP_FX_CALLBACK callback=NULL, void *param=NULL)
void *	GetChannel (ULONG channelID, ULONG &chanType)
GBuffer *	GetGBuffer ()
ULONG	CreateChannels (ULONG channelIDs)
void	DeleteChannels (ULONG channelIDs)
ULONG	ChannelsPresent ()
RenderInfo *	GetRenderInfo ()
RenderInfo *	AllocRenderInfo ()
BMMExport BOOL	PrepareGChannels (BitmapInfo *bi)
BMMExport BOOL	PrepareGChannels (DWORD channels)
BMMExport int	GetFiltered (float u, float v, float du, float dv, BMM_Color_64 *ptr)
BMMExport int	GetFiltered (float u, float v, float du, float dv, BMM_Color_fl *ptr)
BMMExport int	SetDither (UINT ditherType)
BMMExport int	SetFilter (UINT filterType)
int	HasFilter ()
BitmapFilter *	Filter ()
BMMExport int	SetStorage (BitmapStorage *storage)
BitmapStorage *	Storage ()
void	NullStorage ()
BMMExport PBITMAPINFO	ToDib (int depth=24, UWORD *gam=NULL, BOOL dither=FALSE, BOOL displayGamma=FALSE)
BMMExport BOOL	FromDib (PBITMAPINFO pbmi)
BMMExport BMMRES	OpenOutput (BitmapInfo *bi)
	Opens the image for output. More...
BMMExport BMMRES	Write (BitmapInfo *bi, int frame=BMM_SINGLEFRAME)
	Write the image from BitmapStorage to disk. More...
BMMExport BMMRES	WriteAll (int frame=BMM_SINGLEFRAME)
BMMExport int	Close (BitmapInfo *bi, int flag=BMM_CLOSE_COMPLETE)
BMMExport int	CloseAll (int flag=BMM_CLOSE_COMPLETE)
BMMExport int	Display (const MCHAR *title=NULL, int position=BMM_CN, BOOL autonomous=FALSE, BOOL savebutton=TRUE, CropCallback *crop=NULL, Bitmap *cloneMyVFB=NULL)
BMMExport int	UnDisplay ()
BMMExport HWND	GetWindow ()
BMMExport void	RefreshWindow (RECT *rect=NULL)
BMMExport void	SetWindowTitle (const MCHAR *title)
BMMExport void	SetCroppingValues (float u, float v, float w, float h, BOOL placeImage)
BMMExport BMMRES	GoTo (BitmapInfo *bi)
BMMExport int	Fill (int r, int g, int b, int alpha)
BMMExport int	Fill (const BMM_Color_fl &fillColor)
BMMExport int	Fill (const BMM_Color_64 &fillColor)
BMMExport void	SetNotify (BitmapNotify *bmnot=NULL)
BitmapNotify *	GetNotify ()
BMMExport BOOL	IsAutonomousVFB ()
BMMExport INT_PTR	Execute (int cmd, ULONG_PTR arg1=0, ULONG_PTR arg2=0, ULONG_PTR arg3=0)
DWORD	GetModifyID ()
void	SetModifyID (DWORD m)
BMMExport void	IncrModifyID ()
BMMExport void	Print (bool silent=false)
BMMExport void	ShowProgressLine (int y)
Public Member Functions inherited from BaseInterfaceServer
virtual UtilExport BaseInterface *	GetInterface (Interface_ID id)
virtual UtilExport int	NumInterfaces () const
virtual UtilExport BaseInterface *	GetInterfaceAt (int i) const
virtual UtilExport	~BaseInterfaceServer ()
Public Member Functions inherited from InterfaceServer
virtual UtilExport	~InterfaceServer ()
	Destructor. More...

Static Public Member Functions
static void	ClampColor (BMM_Color_64 &out, const BMM_Color_fl &in)
static void	ClampColorA (BMM_Color_64 &out, const BMM_Color_fl &in)
static void	ScaleColor (BMM_Color_64 &out, const BMM_Color_fl &in)
static void	ScaleColorA (BMM_Color_64 &out, const BMM_Color_fl &in)
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...

Friends
class	BitmapManagerImp
LRESULT CALLBACK	InputWndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

Additional Inherited Members
Protected Attributes inherited from BaseInterfaceServer
Tab< BaseInterface * >	interfaces

Member Function Documentation

BitmapManager* Manager ( )

inline

Remarks

Returns a pointer to the bitmap manager being used.

{ return manager; };

BMMExport int Create

(

BitmapInfo *

bi

)

BMMExport BOOL FixDeviceName

(

BitmapInfo *

bi

)

int MapReady ( )

inline

{ if (storage) return storage->MapReady(); return 0; };

BMMExport void AddOutput

(

BitmapIO *

out

)

BMMExport void RemoveOutput	(	BitmapIO *	out,
		BOOL	deleteOutput = TRUE
	)

BMMExport BitmapIO* FindOutput

(

BitmapInfo *

bi

)

BMMExport PAVIFILE GetPaviFile

(

BitmapInfo *

bi

)

void* GetVFBData ( )

inline

{ return vfbData; }

void SetVFBData ( void *  vfb )

inline

{ vfbData = vfb; }

BMMExport void DeleteThis

(

)

Remarks

This method should be called to free the Bitmap. Note that you should not invoke ~Bitmap() directly by calling delete on the Bitmap as was done in 3ds Max1.x. An assert will be raised if you call delete on a Bitmap directly. Instead use this method.

DWORD Flags ( )

inline

Remarks

Returns the state of the bitmap flags. These flags describe properties of the bitmap such as if the bitmap is flipped horizontally or inverted vertically, is paletted, is dithered, etc. See Bitmap Flags.

{ return flags; };

void SetFlag ( DWORD  flag )

inline

Remarks

Sets the specified flag bit(s).

Parameters:

DWORD flag

The flag(s) to set. See Bitmap Flags.

{ flags |= flag; };

void ToggleFlag ( DWORD  flag )

inline

Remarks

Toggles the specified flag bit(s) on/off.

Parameters:

DWORD flag

The flag(s) to toggle. See Bitmap Flags.

{ flags ^= flag; };

void ClearFlag ( DWORD  flag )

inline

Remarks

Clears the specified flag bit(s) (sets them to zero).

Parameters:

DWORD flag

The flag(s) to clear. See Bitmap Flags.

{ flags &= (~flag); };

int Width ( )

inline

Remarks

Returns the width of the bitmap (the horizontal dimension).

Returns

If storage has been allocated the width of the bitmap; otherwise 0.

{ if (storage) return storage->Width();              return 0; };

int Height ( )

inline

Remarks

Returns the height (vertical dimension) of the bitmap.

Returns

If storage has been allocated the height of the bitmap; otherwise 0.

{ if (storage) return storage->Height();             return 0; };

float Aspect ( )

inline

Remarks

Returns the aspect ratio of the bitmap.

Returns

If storage has been allocated the aspect ratio of the bitmap; otherwise 0.0f.

{ if (storage) return storage->Aspect();             return (float)0.0; };

float Gamma ( )

inline

Remarks

Returns the gamma value for the bitmap.

Returns

If storage has been allocated the gamma of the bitmap; otherwise 0.0f.

{ if (storage) return storage->Gamma();              return (float)0.0; };

int Paletted ( )

inline

Remarks

Returns whether the bitmap uses a palette (is not true color).

Returns

If storage has been allocated returns nonzero if the bitmap uses a palette (returns the number of palette slots used); otherwise 0.

{ if (storage) return storage->Paletted();           return 0; };

int IsDithered ( )

inline

Remarks

Returns whether the bitmap is dithered or not.

Returns

If storage has been allocated returns nonzero if the bitmap is dithered; otherwise 0.

{ if (storage) return storage->IsDithered();         return 0; };

int PreMultipliedAlpha ( )

inline

Remarks

Returns whether the bitmap uses pre-multiplied alpha.

Returns

If storage has been allocated returns nonzero if the bitmap uses pre-multiplied alpha; otherwise 0.

{ if (storage) return storage->PreMultipliedAlpha(); return 0; };

int HasAlpha ( )

inline

Remarks

Returns whether the bitmap has an alpha channel.

Returns

If storage has been allocated returns nonzero if the bitmap has an alpha channel; otherwise 0.

{ if (storage) return storage->HasAlpha();           return 0; };

int IsHighDynamicRange ( )

inline

Remarks

Returns nonzero if this is a bitmap that supports high dynamic range data; zero if it doesn't.

{ if (storage) return storage->IsHighDynamicRange(); return 0; };

int MaxRGBLevel ( )

inline

Remarks

This method returns the number of bits per pixel for each color component. For example a 24-bit TARGA has a MaxRGBLevel() of 8.

{ if (storage) return storage->MaxRGBLevel();        return 0; };

int MaxAlphaLevel ( )

inline

Remarks

Implemented by the System.

Returns the number of bits per pixel in the alpha channel.

Returns

If storage has not been allocated returns 0.

{ if (storage) return storage->MaxAlphaLevel();      return 0; };

void UseScaleColors ( int  on )

inline

Remarks

Implemented by the System.

Set whether colors are scaled (on) or clamped (off) when converting from BMM_Color_fl to BMM_Color_64. If storage is not allocated, does nothing.

{ if (storage) storage->UseScaleColors(on); };

int ScaleColors ( )

inline

Remarks

Implemented by the System.

Returns the last value set by UseScaleColors. If storage is not allocated, returns 0.

{ if (storage) return storage->ScaleColors();        return 0; };

static void ClampColor ( BMM_Color_64 &  out, const BMM_Color_fl &  in  )

inlinestatic

Remarks

Implemented by the System.

Converts in to out clamping the RGB components to 0 to 65535. The alpha component is not copied.

Parameters:

BMM_Color_64& out

The result of the conversion.

BMM_Color_fl& in

The value to convert.

{ BitmapStorage::ClampColor(out, in); }

static void ClampColorA ( BMM_Color_64 &  out, const BMM_Color_fl &  in  )

inlinestatic

Remarks

Implemented by the System.

Converts in to out clamping the RGB components to 0 to 65535.

Parameters:

BMM_Color_64& out

The result of the conversion.

BMM_Color_fl& in

The value to convert.

{ BitmapStorage::ClampColorA(out, in); }

static void ScaleColor ( BMM_Color_64 &  out, const BMM_Color_fl &  in  )

inlinestatic

Remarks

Implemented by the System.

Converts in to out clamping the RGB components to 0 to 65535. The alpha component is not copied.

Parameters:

BMM_Color_64& out

The result of the conversion.

BMM_Color_fl& in

The value to convert.

{ BitmapStorage::ScaleColor(out, in);}

static void ScaleColorA ( BMM_Color_64 &  out, const BMM_Color_fl &  in  )

inlinestatic

Remarks

Implemented by the System.

Converts in to out clamping the RGB components to 0 to 65535.

Parameters:

BMM_Color_64& out

The result of the conversion.

BMM_Color_fl& in

The value to convert.

{ BitmapStorage::ScaleColorA(out, in);}

void ClampScaleColor ( BMM_Color_64 &  out, const BMM_Color_fl &  in  )

inline

Remarks

Implemented by the System.

Converts in to out, using the value of ScaleColors() to determine the clamping or scaling. The alpha component is not copied. If the storage is not allocated, the clamping is performed.

Parameters:

BMM_Color_64& out

The result of the conversion.

BMM_Color_fl& in

The value to convert.

{ if (storage) storage->ClampScaleColor(out, in); else ClampColor(out, in); }

void ClampScaleColorA ( BMM_Color_64 &  out, const BMM_Color_fl &  in  )

inline

Remarks

Implemented by the System.

Converts in to out, using the value of ScaleColors() to determine the clamping or scaling. If the storage is not allocated, the clamping is performed.

Parameters:

BMM_Color_64& out

The result of the conversion.

BMM_Color_fl& in

The value to convert.

{ if (storage) storage->ClampScaleColorA(out, in); else ClampColorA(out, in); }

int Put16Gray ( int  x, int  y, int  pixels, WORD *  ptr  )

inline

                                                           { if (storage) return storage->Put16Gray(x,y,pixels,ptr); return 0; };

int Put16Gray ( int  x, int  y, int  pixels, float *  ptr  )

inline

Remarks

Stores the specified 16-bit pixel values into the bitmap. The pixel value pointer you pass to this method may be freed or reused as soon as the function returns. Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Destination x location.

int y

Destination y location.

int pixels

Number of pixels to store.

float *ptr

Pixel values to store.

Returns

Returns nonzero if pixels were stored; otherwise 0. If storage has not been allocated 0 is returned.

                                                           { if (storage) return storage->Put16Gray(x,y,pixels,ptr); return 0; };

void* GetStoragePtr ( int *  type )

inline

                                                           { if (storage) return storage->GetStoragePtr(type);       return NULL; };

void* GetAlphaPtr ( int *  type )

inline

                                                           { if (storage) return storage->GetAlphaPtr(type);         return NULL; };

int Get16Gray ( int  x, int  y, int  pixels, WORD *  ptr  )

inline

                                                           { if (storage) return storage->Get16Gray(x,y,pixels,ptr);         return 0; };

int Get16Gray ( int  x, int  y, int  pixels, float *  ptr  )

inline

Remarks

Retrieves the specified 16-bit pixel values from the bitmap. Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

float *ptr

Pointer to storage for the retrieved pixel values.

Returns

Returns nonzero if pixels were retrieved; otherwise 0. If storage has not been allocated 0 is returned.

                                                           { if (storage) return storage->Get16Gray(x,y,pixels,ptr);         return 0; };

int GetPixels ( int  x, int  y, int  pixels, BMM_Color_64 *  ptr  )

inline

                                                           { if (storage) return storage->GetPixels(x,y,pixels,ptr);         return 0; };

int GetPixels ( int  x, int  y, int  pixels, BMM_Color_fl *  ptr  )

inline

Remarks

Retrieves the specified 64-bit pixel values from the bitmap. Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

BMM_Color_fl *ptr

Pointer to storage for the retrieved pixel values. See Structure BMM_Color_fl.

Returns

Returns nonzero if pixels were retrieved; otherwise 0. If storage has not been allocated 0 is returned.

                                                           { if (storage) return storage->GetPixels(x,y,pixels,ptr);         return 0; };

BMMExport int PutPixels	(	int	x,
		int	y,
		int	pixels,
		BMM_Color_64 *	ptr
	)

BMMExport int PutPixels	(	int	x,
		int	y,
		int	pixels,
		BMM_Color_fl *	ptr
	)

Remarks

Stores the specified 64-bit pixel values into the bitmap's own local storage. The pointer you pass to this method may be freed or reused as soon as the function returns. Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Destination x location.

int y

Destination y location.

int pixels

Number of pixels to store.

BMM_Color_fl *ptr

Pixel values to store. See Structure BMM_Color_fl.

Returns

Returns nonzero if pixels were stored; otherwise 0. If storage has not been allocated 0 is returned.

int GetLinearPixels ( int  x, int  y, int  pixels, BMM_Color_64 *  ptr  )

inline

Remarks

Retrieves the specified 64-bit pixel values from the bitmap. These pixels are NOT gamma corrected (i.e. they have linear gamma

• 1.0). Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

BMM_Color_64 *ptr

Pointer to storage for the retrieved pixel values. See Structure BMM_Color_64.

Returns

Returns nonzero if pixels were retrieved; otherwise 0. If storage has not been allocated 0 is returned.

                                                           { if (storage) return storage->GetLinearPixels(x,y,pixels,ptr);     return 0; };

int GetLinearPixels ( int  x, int  y, int  pixels, BMM_Color_fl *  ptr  )

inline

                                                           { if (storage) return storage->GetLinearPixels(x,y,pixels,ptr);     return 0; };

int GetIndexPixels ( int  x, int  y, int  pixels, BYTE *  ptr  )

inline

Remarks

Retrieves the specified pixels from the paletted bitmap. The palette for the image may be accessed using GetPalette(). Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Source x location.

int y

Source y location.

int pixels

Number of pixels to retrieve.

BYTE *ptr

Pointer to storage for the pixel values.

Returns

Returns nonzero if pixels were retrieved; otherwise 0. If storage has not been allocated 0 is returned.

                                                           { if (storage) return storage->GetIndexPixels(x,y,pixels,ptr);      return 0; };

int PutIndexPixels ( int  x, int  y, int  pixels, BYTE *  ptr  )

inline

Remarks

Stores the pixels into the specified location of the paletted bitmap. The pixel value pointer you pass to this method may be freed or reused as soon as the function returns. Note: This method provides access to pixel data one scanline at a time.

Parameters:

int x

Destination x location.

int y

Destination y location.

int pixels

Number of pixels to store.

BYTE *ptr

Pixels to store.

Returns

Returns nonzero if pixels were stored; otherwise 0. If storage has not been allocated 0 is returned.

                                                           { if (storage) return storage->PutIndexPixels(x,y,pixels,ptr);      return 0; };

int CropImage ( int  width, int  height, BMM_Color_64  fillcolor  )

inline

                                                           { if (storage) return storage->CropImage(width,height,fillcolor);   return 0; };

int CropImage ( int  width, int  height, BMM_Color_fl  fillcolor  )

inline

                                                           { if (storage) return storage->CropImage(width,height,fillcolor);   return 0; };

int CropImage ( int  width, int  height, int  fillindex  )

inline

                                                           { if (storage) return storage->CropImage(width,height,fillindex);   return 0; };

int ResizeImage ( int  width, int  height, int  newpalette  )

inline

Remarks

This method is not currently implemented.

                                                           { if (storage) return storage->ResizeImage(width,height,newpalette);return 0; };

int CopyImage ( Bitmap *  from, int  operation, BMM_Color_64  fillcolor, BitmapInfo *  bi = NULL  )

inline

                                                           { if (storage) return storage->CopyImage(from,operation,fillcolor,bi); return 0; };

int CopyImage ( Bitmap *  from, int  operation, BMM_Color_fl  fillcolor, BitmapInfo *  bi = NULL  )

inline

Remarks

Copies the specified bitmap to this bitmap.

Parameters:

Bitmap *from

The source bitmap.

int operation

The type of copy to perform:

COPY_IMAGE_CROP

Copy image to current map size using cropping if necessary.

COPY_IMAGE_RESIZE_LO_QUALITY

Resize the source image to the destination map size (draft quality).

COPY_IMAGE_RESIZE_HI_QUALITY

Resize source image to the destination map size (final quality).

COPY_IMAGE_USE_CUSTOM

Resize based on the Image Input Options (BitmapInfo *).

BMM_Color_fl fillcolor

Vacant areas of the bitmap are filled with fillcolor pixels if the operation specified is COPY_IMAGE_CROP and one of the source bitmap dimensions is less than the size of this bitmap. See Structure BMM_Color_fl.

BitmapInfo *bi = NULL

When using custom options (resize to fit, positioning, etc.) this is how the flags are passed down to the Bitmap Manager. This is an optional argument – for simple copy operations, *bi can default to NULL. If present, the code checks the option flags and acts accordingly.

Returns

Nonzero if the copy was performed; otherwise 0.

                                                           { if (storage) return storage->CopyImage(from,operation,fillcolor,bi); return 0; };

int CopyImage ( Bitmap *  from, int  operation, int  fillindex  )

inline

Remarks

Copies the specified bitmap to this bitmap.

Parameters:

Bitmap *from

The source bitmap.

int operation

The type of copy to perform. See Copy Image Operations.

int fillindex

Vacant areas of the bitmap are filled with fillindex pixels if the operation specified is COPY_IMAGE_CROP and one of the source bitmap dimensions is less than the size of this bitmap.

Returns

Nonzero if the copy was performed; otherwise 0.

                                                           { if (storage) return storage->CopyImage(from,operation,fillindex); return 0; };

int GetPalette ( int  start, int  count, BMM_Color_48 *  ptr  )

inline

Remarks

Retrieves a portion of the palette from the bitmap.

Parameters:

int start

The index into the palette of where to begin retrieving palette entries.

int count

The number of palette entries to retrieve.

BMM_Color_48 *ptr

Storage for the palette entries. See Structure BMM_Color_48.

Returns

Nonzero if the palette entries were retrieved; otherwise 0.

                                                           { if (storage) return storage->GetPalette(start,count,ptr);         return 0; };

int SetPalette ( int  start, int  count, BMM_Color_48 *  ptr  )

inline

Remarks

Sets the specified portion of the palette of this bitmap.

Parameters:

int start

The index into the palette of where to begin storing palette entries.

int count

The number of palette entries to store.

BMM_Color_48 *ptr

The palette entries to store. See Structure BMM_Color_48.

Returns

Nonzero if the palette entries were stored; otherwise 0.

                                                           { if (storage) return storage->SetPalette(start,count,ptr);         return 0; };

BMMExport void FilmGrain	(	float	grain,
		BOOL	mask,
		PBITMAP_FX_CALLBACK	callback = NULL,
		void *	param = NULL
	)

void* GetChannel ( ULONG  channelID, ULONG &  chanType  )

inline

Remarks

Returns a pointer to the specified channel of the bitmap, and determines its type in terms of bits per pixel.

Parameters:

ULONG channelID

The channel to return a pointer to. See Image (G-Buffer) Channels.

ULONG& chanType

The type of the returned channel. One of the following values:

BMM_CHAN_TYPE_UNKNOWN

Channel not of a known type.

BMM_CHAN_TYPE_8

1 byte per pixel

BMM_CHAN_TYPE_16

1 word per pixel

BMM_CHAN_TYPE_32

2 words per pixel

BMM_CHAN_TYPE_48

3 words per pixel

BMM_CHAN_TYPE_64

4 words per pixel

BMM_CHAN_TYPE_96

6 words per pixel

                                       { if (storage) return storage->GetChannel(channelID, chanType); return NULL; }   

GBuffer* GetGBuffer ( )

inline

Remarks

Returns a pointer to the GBuffer for the bitmap (or NULL if none).

{ return storage? storage->GetGBuffer(): NULL; } 

ULONG CreateChannels ( ULONG  channelIDs )

inline

Remarks

This method creates the specified channels. After creation, these may be accessed using void *GetChannel().

Parameters:

ULONG channelIDs

Specifies the channels to create. See Image (G-Buffer) Channels.

Returns

The channels that are present.

                                             { if (storage) return storage->CreateChannels(channelIDs); return 0; }   

void DeleteChannels ( ULONG  channelIDs )

inline

Remarks

Delete the specified channels.

Parameters:

ULONG channelIDs

Specifies the channels to delete. See Image (G-Buffer) Channels.

                                             { if (storage) storage->DeleteChannels(channelIDs); }     

ULONG ChannelsPresent ( )

inline

Remarks

Returns the channels that are present. See Image (G-Buffer) Channels.

                                             { if (storage) return storage->ChannelsPresent();  return 0; }   

RenderInfo* GetRenderInfo ( )

inline

Remarks

This is used internally. It returns a pointer to the RenderInfo associated with the storage if available; otherwise NULL. See Class RenderInfo.

{ if (storage) return storage->GetRenderInfo(); return NULL; }

RenderInfo* AllocRenderInfo ( )

inline

Remarks

This is used internally. It returns a pointer to the RenderInfo instance allocated by the storage. If this could not be allocated NULL is returned. See Class RenderInfo.

{ if (storage) return storage->AllocRenderInfo(); return NULL; }

BMMExport BOOL PrepareGChannels

(

BitmapInfo *

bi

)

Remarks

This method is used internally. This method will check with the plug-in (file or device) defined in the given BitmapInfo and prepare (create) the proper channels. If a given channel already exists, no new channel will be created. After creating a bitmap, use this function to define the optional channels that may be required by the given handler.

Parameters:

BitmapInfo *bi

Points to an instance of BitmapInfo that defines the properties of the image.

Returns

TRUE if the channels were created; otherwise FALSE.

BMMExport BOOL PrepareGChannels

(

DWORD

channels

)

BMMExport int GetFiltered	(	float	u,
		float	v,
		float	du,
		float	dv,
		BMM_Color_64 *	ptr
	)

BMMExport int GetFiltered	(	float	u,
		float	v,
		float	du,
		float	dv,
		BMM_Color_fl *	ptr
	)

Remarks

This method uses summed area table or pyramidal filtering to compute an averaged color over the specified area. You must have a filter plugged in for this to work. See SetFilter() below.

Parameters:

float u, float v

The location in the bitmap to filter. These values go from 0.0 to 1.0 across the size of the bitmap.

float du, float dv

The size of the rectangle to sample. These values go from 0.0 to 1.0 across the size of the bitmap.

BMM_Color_fl *ptr

The result is returned here – the average over the specified area. See Structure BMM_Color_fl.

Remarks

This method uses summed area table or pyramidal filtering to compute an averaged color over the specified area. You must have a filter plugged in for this to work. See SetFilter() below.

Parameters:

float u, float v

The location in the bitmap to filter. These values go from 0.0 to 1.0 across the size of the bitmap.

float du, float dv

The size of the rectangle to sample. These values go from 0.0 to 1.0 across the size of the bitmap.

BMM_Color_fl *ptr

The result is returned here – the average over the specified area.

BMMExport int SetDither

(

UINT

ditherType

)

Remarks

Sets the type of dithering used on the bitmap.

Parameters:

UINT ditherType

The type of dither to perform.

BMM_DITHER_NONE

Specifies no dithering is to be performed.

BMM_DITHER_FLOYD

Specifies the Floyd-Steinberg dithering algorithm.

Returns

Nonzero if the bitmap dithering was set; otherwise 0.

BMMExport int SetFilter

(

UINT

filterType

)

Remarks

Establishes a filtering algorithm to be used by the bitmap.

Parameters:

UINT filterType

See Bitmap Filter Types.

Returns

Nonzero if the bitmap filtering was set; otherwise 0.

int HasFilter ( )

inline

Remarks

Determines if the bitmap has a filter.

Returns

Returns nonzero if the bitmap has a filter; otherwise 0.

{ return (filter) ? 1:0; };

BitmapFilter* Filter ( )

inline

Remarks

This method is used internally. It returns a pointer to the bitmap filter used by the bitmap.

{ return filter; }; 

BMMExport int SetStorage

(

BitmapStorage *

storage

)

Remarks

Establishes a bitmap storage to manage this bitmap.

Parameters:

BitmapStorage *storage

The storage to manage the bitmap.

Returns

Nonzero if the storage was assigned; otherwise 0.

BitmapStorage* Storage ( )

inline

Remarks

Returns the storage that is managing this bitmap.

Returns

A pointer to the storage.

{ return storage; };

void NullStorage ( )

inline

Remarks

Sets the storage pointer to NULL.

{ storage = NULL; };

BMMExport PBITMAPINFO ToDib	(	int	depth = 24,
		UWORD *	gam = NULL,
		BOOL	dither = FALSE,
		BOOL	displayGamma = FALSE
	)

Remarks

Creates a new Windows Device Independent Bitmap (DIB) and returns a pointer to it. The DIB bitmap is created from this Bitmap. The DIB is allocated using LocalAlloc(). The pseudo-code below show how one may be created and freed. Note that the DIB is never used or accessed inside 3ds Max (the call to ToDib() is the first and last time that 3ds Max sees this pointer):

PBITMAPINFO pDib;
pDib = bitmap-\>ToDib();
...

When you are done using the DIB call:

LocalFree(pDib);

Parameters:

int depth = 24

The bitmap depth; either 24 (BGR) or 32 (BGRO). If not specified the default is 24.

UWORD *gam=NULL

Specifies a pointer to an optional gamma table that is used to apply gamma correction to the color components as part of the conversion to a DIB. The table has RCOLN entries.

BOOL dither=FALSE

Specifies if a random dither is applied when reducing the color components from 16 bits per channel to 8 bits per channel (to reduce banding effects). BOOL displayGamma=FALSE

Specifies whether the output should be color corrected for screen display. If so, the gamma table parameter is ignored, and the DIB is color corrected using display gamma or LUT, as necessary.

BMMExport BOOL FromDib

(

PBITMAPINFO

pbmi

)

Remarks

Converts the DIB to this bitmap's storage type. This bitmap's storage must already be allocated or the call will fail. The source must be 16, 24 or 32 bit. You cannot use an 8 bit DIB.

Parameters:

PBITMAPINFO pbmi

The source bitmap.

Returns

TRUE if the conversion was performed; otherwise FALSE.

BMMExport BMMRES OpenOutput

(

BitmapInfo *

bi

)

Opens the image for output.

Remarks

This method will open the image for output. This allows the image to be written to. Note that you can pass a BitmapInfo to this method on which you simply set the file name 'by hand' (bi->SetName(_T("D:\renders\output.jpg"))). This will work and the correct driver (i.e. BitmapIO) will be selected based on the filename extension. This will work even in a localized environment, therefore there is no need to manually call BitmapInfo::SetDevice on the BitmapInfo that is passed to this function. However you won't be able to set any driver specific settings (such as compression settings for JPEGs). The alternative way is to use the BitmapManger methods.

Parameters

bi	- Contains the name of the image or device to open for output.

Returns

BMMRES_SUCCESS - Indicates success.

BMMRES_ERRORTAKENCARE - Indicates that 3ds Max could not find a device to handle the image.

BMMRES_INTERNALERROR - Indicates the IO module handling the image could not be opened for writing.

BMMExport BMMRES Write	(	BitmapInfo *	bi,
		int	frame = BMM_SINGLEFRAME
	)

Write the image from BitmapStorage to disk.

Remarks

Write the image from the BitmapStorage to disk. Note that you must pass the same BitmapInfo used when the file was first "Opened for Output". The main reason is that any device specific settings are kept in the BitmapInfo object. Also, the custom options such as gamma value, optional channels, etc (if any) are kept in this BitmapInfo instance. These are assigned when the bitmap is first opened (for either read or write).

Parameters

bi

- Contains the name of the file or device to write to.

frame

- Specifies the frame number to write. If this is a single image, allow frame to default to single frame. This argument determines if the file will have the frame number appended to it. If you want the file to have a normal name (no frame number attached to it), you must set the frame argument to BMM_SINGLEFRAME (the default). Any other value is considered to be a frame number and it will be appended to the given filename.

Returns

BMMRES_SUCCESS - Indicates success.

BMMRES_ERRORTAKENCARE - Indicates that 3ds Max could not find a device to handle the image.

BMMRES_INTERNALERROR - Indicates the IO module handling the image could not be opened for writing.

BMMExport BMMRES WriteAll

(

int

frame = BMM_SINGLEFRAME

)

Remarks

Write the image to all the open outputs.

Parameters:

DWORD frame = BMM_SINGLEFRAME

Specifies the frame number to write. If this is a single image, allow frame to default to single frame.

Returns

BMMRES_SUCCESS

Indicates success.

BMMRES_ERRORTAKENCARE

Indicates that 3ds Max could not find a device to handle the image.

BMMRES_INTERNALERROR

Indicates the IO module handling the image could not be opened for writing.

BMMExport int Close	(	BitmapInfo *	bi,
		int	flag = BMM_CLOSE_COMPLETE
	)

Remarks

Close the bitmap. This means the bitmap is no longer open for writing.

Parameters:

BitmapInfo *bi

Identifies the bitmap to close.

int flag = BMM_CLOSE_COMPLETE

See Bitmap Close Types.

Returns

Nonzero if the image output was closed without error; otherwise 0.

BMMExport int CloseAll

(

int

flag = BMM_CLOSE_COMPLETE

)

Remarks

Closes all the open outputs.

Parameters:

int flag = BMM_CLOSE_COMPLETE

See Bitmap Close Types.

Returns

Nonzero if the image outputs were closed without error; otherwise 0.

BMMExport int Display	(	const MCHAR *	title = NULL,
		int	position = BMM_CN,
		BOOL	autonomous = FALSE,
		BOOL	savebutton = TRUE,
		CropCallback *	crop = NULL,
		Bitmap *	cloneMyVFB = NULL
	)

Remarks

This method creates a window for the display of this bitmap and displays it.

Parameters:

MCHAR *title = NULL

The title to display in the title bar of the window.

int position = BMM_CN

Specifies how the bitmap should be positioned. One of the following values:

BMM_UL - Upper Left

BMM_LL - Lower Left

BMM_UR - Upper Right

BMM_LR - Lower Right

BMM_CN - Center

BMM_RND - Used internally. Renderer location.

BMM_VPP - Used internally. Video Post Primary location.

BMM_VPS - Used internally. Video Post Secondary location.

BOOL autonomous = FALSE

This is reserved for internal use, always let it default to FALSE.

BOOL savebutton = TRUE

This is reserved for internal use, always let it default to TRUE.

CropCallback *crop=NULL

This parameter is available in release 2.0 and later only.

When non-NULL this will cause the VFB to display, instead of its normal toolbar, a set of sliders for adjusting cropping and also will allow interactive adjustment of the cropping rectangle in the image window. See Class CropCallback.

Bitmap *cloneMyVFB = NULL

This parameter is available in release 4.0 and later only.

A pointer to a bitmap to clone the VFB to.

Returns

Nonzero if the bitmap was displayed; otherwise 0.

BMMExport int UnDisplay

(

)

Remarks

Close the display window associated with this bitmap (if any).

Returns

Always returns nonzero.

BMMExport HWND GetWindow

(

)

Remarks

Get the window handle for the displayed bitmap.

Returns

Returns the window handle, or NULL if it's not displayed in a window.

BMMExport void RefreshWindow

(

RECT *

rect = NULL

)

Remarks

Refreshes the interior of the display window with the bitmap contents. In release 3.0 and later this method respects the Bitmap::ShowProgressLine() setting. See that method for more details.

Parameters:

RECT *rect = NULL

The region of the display window to refresh (specified in image coordinates). If the pointer is NULL the entire window is refreshed.

BMMExport void SetWindowTitle

(

const MCHAR *

title

)

Remarks

Sets the title displayed in the display window's title bar.

Parameters:

MCHAR *title

The title to display.

BMMExport void SetCroppingValues	(	float	u,
		float	v,
		float	w,
		float	h,
		BOOL	placeImage
	)

Remarks

This method is used when the VFB is being displayed and you want to change the cropping rectangle from your plug-in. An example of this is available in /MAXSDK/SAMPLES/MATERIALS/BMTEX.CPP.

Parameters:

float u

The U value to set.

float v

The U value to set.

float w

The U value to set.

float h

The U value to set.

BOOL placeImage

TRUE for place mode; FALSE for crop.

BMMExport BMMRES GoTo

(

BitmapInfo *

bi

)

Remarks

This method is used with multi-frame bitmaps (FLI's, AVI's, DDR devices, etc.). It is used to load a frame to replace a previously saved image. To define the desired frame, use:

bi->SetCurrentFrame(frame);

Parameters:

BitmapInfo *bi

A pointer to the BitmapInfo. The frame number information is passed here.

Returns

If used with single frame drivers or if the driver doesn't support this function, it returns BMMRES_SINGLEFRAME. If the return value is BMMRES_SUCCESS, a new frame has been loaded into the given bitmap.

BMMExport int Fill	(	int	r,
		int	g,
		int	b,
		int	alpha
	)

Remarks

Sets every pixel of the bitmap to the specified color and alpha value.

Parameters:

int r

Specifies the red value to fill with.

int g

Specifies the green value to fill with.

int b

Specifies the blue value to fill with.

int alpha

Specifies the alpha value to fill with.

Returns

Nonzero if the operation succeeded; otherwise FALSE.

BMMExport int Fill

(

const BMM_Color_fl &

fillColor

)

Remarks

Used by Maxscript.

Parameters:

fillColor

BMMExport int Fill

(

const BMM_Color_64 &

fillColor

)

Remarks

Used by Maxscript.

Parameters:

fillColor

BMMExport void SetNotify

(

BitmapNotify *

bmnot = NULL

)

Remarks

This method is used to set a callback to allow the developer to get notified if the storage for the Bitmap has changed.

Parameters:

BitmapNotify *bmnot=NULL

The pointer to the callback object implemented by the developer used to provide notification when the Bitmap's storage changes. See Class BitmapNotify.

BitmapNotify* GetNotify ( )

inline

Remarks

Returns a pointer to the callback used to notify a developer when the Bitmap's storage changes.

Default Implementation:

{ return bmNotify; };

{ return bmNotify; }

BMMExport BOOL IsAutonomousVFB

(

)

Remarks

Returns TRUE if the virtual frame buffer (VFB) is autonomous; otherwise FALSE. For instance, Video Post has an associated VFB. When Video Post is closed so is its VFB since it belongs to it. In that case the VFB is not autonomous. If the user does a View File command, that VFB is autonomous.

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

Remarks

This is a general purpose function that allows the API to be extended in the future. The 3ds Max development team can assign new cmd numbers and continue to add functionality to this class without having to 'break' the API.

Parameters:

int cmd

The index of the command to execute.

ULONG arg1=0

Optional argument 1. See the documentation where the cmd option is discussed for more details on these parameters.

ULONG arg2=0

Optional argument 2.

ULONG arg3=0

Optional argument 3.

Returns

An integer return value. See the documentation where the cmd option is discussed for more details on the meaning of this value.

DWORD GetModifyID ( )

inline

{ return modifyID; }

void SetModifyID ( DWORD  m )

inline

{ modifyID = m; }

BMMExport void IncrModifyID

(

)

BMMExport void Print

(

bool

silent = false

)

BMMExport void ShowProgressLine

(

int

y

)

Remarks

This method is used for showing a moving scanline in a virtual frame buffer displaying this bitmap. Here's how it works. If you call ShowProgressLine(y), it clears any previously set white line, and sets an internal counter: you have to call Bitmap::RefreshWindow() to get the new white line to show up. From then that line will be displayed as white. To Clear it call ShowProgressLine(-1).

Parameters:

int y

The scanline to display as white (the count begins at zero). Use a value of -1 to hide the line.

Friends And Related Function Documentation

friend class BitmapManagerImp

friend

LRESULT CALLBACK InputWndProc ( HWND  hWnd, UINT  message, WPARAM  wParam, LPARAM  lParam  )

friend