Name 

Description 

 

Changed 

Called when graphic has changed. 

 

Draw 

Render graphic onto canvas at rectangle. 

 

DrawTransparent 

Render graphic onto canvas at rectangle, blending with canvas's background. 

 

GetEmpty 

Indicates whether graphics object contains graphic. 

 

GetHeight 

Get vertical size of graphic in pixels. 

 

GetPalette 

Get color palette of graphical image. 

 

GetSupportsPartialTransparency 

Indicate whether graphic supports partial transparency. 

 

GetWidth 

Get horizontal size of graphic in pixels. 

 

HandleNeeded 

Create GDI bitmap for TBitmap if it doesn't already exist. 

 

MaskHandleNeeded 

Create GDI bitmap for TBitmap's mask if it doesn't already exist. 

 

PaletteNeeded 

Create color palette for TBitmap's mask if it doesn't already exist. 

 

ReadData 

Read graphic data from TStream. 

 

SetHeight 

Set vertical size of graphic in pixels. 

 

SetPalette 

Set color palette of graphical image. 

 

SetWidth 

Set horizontal size of graphic in pixels. 

 

WriteData 

Write graphic data to TStream. 

 

Name 

Description 

 

Assign 

Copies a new bitmap image to the bitmap object. 

 

Dormant 

Creates a memory bitmap image in order to release the bitmap handle, forcing the image into DIB format to save resources. 

 

FreeImage 

Frees the cached file image stored in memory by the bitmap. 

 

HandleAllocated 

Indicates whether the TBitmap object has acquired a handle to the underlying GDI object. 

 

LoadFromClipboardFormat 

Loads a bitmap from the Clipboard into the bitmap object. 

 

LoadFromResourceID 

Loads a bitmap from a resource into the bitmap object. 

 

LoadFromResourceName 

Loads a bitmap resource into the bitmap object. 

 

LoadFromStream 

Loads the bitmap from a stream into the bitmap object. 

 

Mask 

Converts the current bitmap image into a monochrome mask, replacing TransparentColor with white and every other color with black. 

 

ReleaseHandle 

Returns the handle to the bitmap so that the TBitmap object no longer knows about the handle. 

 

ReleaseMaskHandle 

Returns the handle to the bitmap's mask so that the TBitmap object no longer knows about the mask handle. 

 

ReleasePalette 

Returns the handle to the bitmap's palette and disassociates the palette from the TBitmap object. 

 

SaveToClipboardFormat 

Creates a local copy of the bitmap in Clipboard format. 

 

SaveToStream 

Saves the bitmap to a stream. 

 

SetSize 

Specifies the size of the bitmap.