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SetROP2 The SetROP2 function sets the current foreground mix mode. GDI uses the foreground mix mode to combine pens and interiors of filled objects with the colors already on the screen. The foreground mix mode defines how colors from the brush or pen and the colors in the existing image are to be combined.
VB4-32,5,6
Declare Function SetROP2 Lib "gdi32" (ByVal hdc As Long, ByVal nDrawMode As Long) As Long |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
- hdc
Handle to the device context.
- fnDrawMode
Specifies the new mix mode. This parameter can be any one of the following values:
R2_BLACK
Pixel is always 0.
R2_COPYPEN
Pixel is the pen color.
R2_MASKNOTPEN
Pixel is a combination of the colors common to both the screen and the inverse of the pen.
R2_MASKPEN
Pixel is a combination of the colors common to both the pen and the screen.
R2_MASKPENNOT
Pixel is a combination of the colors common to both the pen and the inverse of the screen.
R2_MERGENOTPEN
Pixel is a combination of the screen color and the inverse of the pen color.
R2_MERGEPEN
Pixel is a combination of the pen color and the screen color.
R2_MERGEPENNOT
Pixel is a combination of the pen color and the inverse of the screen color.
R2_NOP
Pixel remains unchanged.
R2_NOT
Pixel is the inverse of the screen color.
R2_NOTCOPYPEN
Pixel is the inverse of the pen color.
R2_NOTMASKPEN
Pixel is the inverse of the R2_MASKPEN color.
R2_NOTMERGEPEN
Pixel is the inverse of the R2_MERGEPEN color.
R2_NOTXORPEN
Pixel is the inverse of the R2_XORPEN color.
R2_WHITE
Pixel is always 1.
R2_XORPEN
Pixel is a combination of the colors in the pen and in the screen, but not in both. |
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError. |
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