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class TGopBitBltMasked : public TGraphicsOperation;
An accelerated graphics operation that copies a rectangular region of one bitmap into another, using a third bitmap as a mask.
The mask must be the same size as the source bitmap. The parts of the source bitmap that are drawn are the areas that are black in the mask.
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.
TGraphicsOperation
- Abstract base class for all graphics operations.
TGopBitBltMasked
- An accelerated graphics operation that copies a rectangular region of one bitmap...
Defined in TGopBitBltMasked
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TGopBitBltMasked(const TPoint &,TAcceleratedBitmapSpec,TRect &,TAcceleratedBitmapSpec)
Constructor with a position, a source bitmap handle, a rectangle and a mask bitm...iDestination
The destination for the top left hand corner of the portion of the bitmap. iMask
A handle to the source bitmap mask. iSourceBitmap
A handle to the source bitmap, and other information needed to draw it. iSourceRect
A rectangle defining all or a part of the bitmap to be copied. Inherited from TGraphicsOperation
:
Append(TInt,TAny *)
EAlphaBlendOneBitmap
EAlphaBlendTwoBitmaps
EBitBlt
EBitBltAlphaBitmap
EBitBltAlphaChannel
EBitBltMasked
EBitBltTransparent
EChunkTest
EFadeRect
EFilledPolygon
EFilledPolygonWithPattern
EFilledRect
EFilledRectUsingDrawMode
EFilledRectWithPattern
EInvertRect
EScaledBitBlt
EScaledBitBltAlphaBitmap
EScaledBitBltAlphaChannel
EScaledBitBltMasked
EScaledBitBltTransparent
EVirtualAddressTest
Function()const
Next()const
Size()const
TGopFunction
TGraphicsOperation(TGopFunction,TInt)
iFunction
iSize
TGraphicsAcceleratorCaps::iMaskType
Specifies the display mode restrictions for bitmap masks. These are mutually exc...inline TGopBitBltMasked(const TPoint &aDestination, TAcceleratedBitmapSpec aSourceBitmap, TRect &aSourceRect, TAcceleratedBitmapSpec
aMask);
Constructor with a position, a source bitmap handle, a rectangle and a mask bitmap handle.
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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.
TAcceleratedBitmapSpec iMask;
A handle to the source bitmap mask.