函数功能:该函数将指定坐标处的像素设置为与指定颜色最接近的颜色,该像素点必须在剪辑区和设备表面的可视部分内。
1 |
BOOL SetPixeIV(HDC hdc, int X, int Y, COLORREF crColor); |
参数:
hdc:设备环境句柄。
X:指定要设置点的X轴坐标,按逻辑单位表示坐标。
Y:指定要设置点的Y轴坐标,按逻辑单位表示坐标。
crColor:指定要用来绘制像素点的颜色。
返回值:如果函数成功,那么返回值非零;如果函数失败,那么返回值为零。
Windows NT:若想获得更多的错误信息,请调用GetLastError。 备注:不是所有设备都支持SetPixeIV函数0。有关这方面的更多信息,请参考GetDeviceCaps函数中有关RC_BITBLT特性的描述。SetPixeIV比SetPixel快,因为前者不需要返回实际绘制点的颜色值。 速查:Windows NT:3.1及以上版本;Windows:95及以上版本;Windows CE:不支持;头文件:wingdi.h:库文件:gdi32.lib。
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