This function obtains the referenced image's DIB palette, storing it in your array of AT_RGBQUAD structs pointed to by lpPalette.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_palette_get (
HIGEAR hIGear,
LPAT_RGBQUAD lpPalette
);
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Arguments:
| Name | Type | Description |
| hIGear | HIGEAR | HIGEAR handle of image. |
| lpPalette | LPAT_RGBQUAD | Far pointer to the first of an array of AT_RGBQUAD structs sufficient to hold the entire palette from the image's DIB. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call.
Supported Raster Image Formats:
Indexed RGB - 1…8 bpp.
Sample:
Palette Edit
Example:
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HIGEAR hIGear; /* HIGEAR handle of image */ AT_ERRCOUNT nErrcount; /* Returned count of errors on stack */ AT_RGBQUAD rgbqPalette[256]; /* Array of AT_RGBQUAD structs */ nErrcount = IG_palette_get ( hIGear, rgbqPalette ); |
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Remarks:
The array must be large enough to hold the palette. For example, if an 8-bit image, lpPalette must point to the start of an array of 256 AT_RGBQUAD structs, therefore to an array of at least 256 x 4 = 1024 bytes. If the image is 24-bit, no error is set but no palette is returned.
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See also function IG_palette_set() function. To obtain an image's logical palette (the palette after mapping through the display LUTs, or for a 24-bit image the palette that would be used for displaying to an 8-bit device), use function IG_dspl_palette_create(). |