ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Functions Reference / DIB Functions / IG_DIB_bit_depth_get
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    IG_DIB_bit_depth_get
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    This function returns the bit depth of an image, which is the sum of the channel bit depths.

    Declaration:

     
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    AT_INT ACCUAPI IG_DIB_bit_depth_get(
            HIGDIBINFO hDIB
    );
    

    Arguments:

    Name Type Description
    hDIB HIGDIBINFO DIB info handle.

    Return Value:

    Returns image bit depth.

    Supported Raster Image Formats:

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

    Sample:

    Annotation, Load Callback, Thumbnail, MFC PDF Demo

    Example:

     
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    AT_ERRCOUNT nErrcount;  /* Number of errors on stack */
    HIGDIBINFO hDIBInfo;    /* DIB info handle */
    HIGEAR hImage;          /* HIGEAR handle of image */
    AT_INT imageDepth;      /* Returned bit depth of image */
    nErrcount = IG_image_DIB_info_get(hImage, &hDIBInfo);
    imageDepth = IG_DIB_bit_depth_get(hDIBInfo);
    

    Remarks:

    For example, if the image is a simple 24-bit RGB image, this function will return 24. If it's a 24-bit RGB image with an 8-bit alpha channel, this function will return 32.