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发表于 2003-8-13 19:33:00
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Re:请教
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RGB
The RGB macro selects a red, green, blue (RGB) color based on the arguments supplied and the color capabilities of the output device.
COLORREF RGB(
BYTE bRed, // red component of color
BYTE bGreen, // green component of color
BYTE bBlue // blue component of color
);
Parameters
cRed
Specifies the intensity of the red color.
cGreen
Specifies the intensity of the green color.
cBlue
Specifies the intensity of the blue color.
Return Values
The return value is the resultant RGB color.
Remarks
The intensity for each argument is in the range 0 through 255. If all three intensities are zero, the result is black. If all three intensities are 255, the result is white.
For information about using color values in a color palette, see the descriptions of the PALETTEINDEX and PALETTERGB macros.
The RGB macro is defined as follows:
#define RGB(r, g ,b) ((DWORD) (((BYTE) (r) | \
((WORD) (g) << 8)) | \
(((DWORD) (BYTE) (b)) << 16)))
QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in wingdi.h.
See Also
Colors Overview, Color Macros, PALETTEINDEX, PALETTERGB
红色的那一段！
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楼主
发表于 2003-8-13 13:01:00