TGopBitBltTransparent Class Reference
| class TGopBitBltTransparent : public TGraphicsOperation |
An accelerated graphics operation that copies a rectangular region of one bitmap into another, with some transparent pixels in the bitmap.
The data members are all initialised on construction. Objects of this class can be passed to a graphics accelerator's Operation() function either individually, or in a buffer.
TGraphicsAcceleratorCaps::iTransparency TGopTransparency
Constructor & Destructor Documentation
TGopBitBltTransparent(const TPoint &, TAcceleratedBitmapSpec, TRect &, TGopTransparency)
Constructor with a destination, a handle to the source bitmap, a rectangle and a specification for which pixels should be treated as transparent.
Parameters
| const TPoint & aDestination | The destination for the top left hand corner of the portion of the source bitmap. |
| TAcceleratedBitmapSpec aSourceBitmap | A handle to the source bitmap, and other information needed to draw it. |
| TRect & aSourceRect | A rectangle within the source bitmap. Its coordinates are relative to the top left of the bitmap. Defines the part of the source bitmap to be copied. |
| TGopTransparency aTransparency | A specification for which pixels in the source bitmap should be treated as transparent. |
Member Data Documentation
TPoint
iDestination
The destination for the top left hand corner of the portion of the bitmap.
TAcceleratedBitmapSpec
iSourceBitmap
A handle to the source bitmap, and other information needed to draw it.
TRect
iSourceRect
A rectangle defining all or a part of the bitmap to be copied.
TGopTransparency
iTransparency
A specification for which pixels should be treated as transparent.
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