SetPixel

CATResult CATImage::SetPixel ( CATInt32  x, CATInt32  y, unsigned char  r, unsigned char  g, unsigned char  b, unsigned char  a = 255   ) SetPixel() sets the red, green, blue, and alpha values for a specified pixel. This is for convenience and prototyping - for high-speed image processing you'll need to work more directly with the image buffer. Parameters: x  - x position within the image of the pixel y  - y position within the image of the pixel r  - red value of the pixel g  - green value of the pixel b  - blue value of the pixel a  - alpha value of the pixel (255 = opaque, 0 = transparent) Returns: CATResult result code. CAT_SUCCESS on success. See also: GetPixel() Definition at line 886 of file CATImage.cpp. References AbsWidth(), CAT_ERR_IMAGE_EMPTY, CAT_ERR_IMAGE_OUT_OF_RANGE, CAT_SUCCESS, CATASSERT, CATRESULT, fData, fHeight, fWidth, kBytesPerPixel, XOffsetAbs(), and YOffsetAbs(). Referenced by SetPixel().

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