ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Functions Reference / Image Processing Functions / IG_IP_color_count_get
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    IG_IP_color_count_get
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    This function counts the number of unique colors in the specified rectangular area of the image.

    Declaration:

     
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    AT_ERRCOUNT ACCUAPI IG_IP_color_count_get(
            HIGEAR hIGear, 
            LPAT_RECT lpRect, 
            LPAT_INT lpCount
    );
    

    Arguments:

    Name Type Description
    hIGear HIGEAR Image whose count colors are to be counted.
    lpRect LPAT_RECT Rectangle in which to count colors (NULL for the whole image).
    lpCount LPAT_INT Pointer to AT_INT to receive number of colors.

    Return Value:

    Returns the number of ImageGear errors that occurred during this function call.

    Supported Raster Image Formats:

    All pixel formats supported by ImageGear for C and C++.

    Sample:

    Pixel Access