This function returns the image's color space.
Declaration:
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enumIGColorSpaceIDs ACCUAPI IG_DIB_colorspace_get(
HIGDIBINFO hDIB
);
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Arguments:
| hDIB | DIB info handle. |
Return Value:
Returns a combination of values from enumIGColorSpaceIDs.
Supported Raster Image Formats:
All pixel formats supported by ImageGear Professional.
Sample:
None
Example:
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AT_ERRCOUNT nErrcount; /* Number of errors on stack */ HIGDIBINFO hDIBInfo; /* DIB info handle */ HIGEAR hImage; /* HIGEAR handle of image */ enumIGColorSpaceIDs colorspace; /* Color space of image */ AT_BOOL bIndexed; /* Is color space of image indexed? */ AT_BOOL bHasAlpha; /* Does image have an alpha channel? */ /* Find out if an image is indexed, and if it has alpha */ nErrcount = IG_image_DIB_info_get(hImage, &hDIBInfo); colorspace = IG_DIB_colorspace_get(hDIBInfo); bIndexed = (colorspace & IG_COLOR_SPACE_ID_ColorMask) == IG_COLOR_SPACE_ID_I; bHasAlpha = colorspace & IG_COLOR_SPACE_ID_A; |
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Remarks:
This is a bitmask that indicates the color space as well as the presence of alpha, pre-multiplied alpha, and extra channels.
See the IG_util_colorspace_...() functions for more functions that retrieve information about color spaces, alpha, and extra channels.
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Use caution when extracting information from this bitmask. For example, if you want to look at only the color space, you must use the mask IG_COLOR_SPACE_ID_ColorMask as in the example. |