The gflAdjustHLS function allows to adjust the hue, lightness & saturation of a picture.
GFL_ERROR gflAdjustHLS( GFL_BITMAP * src,
GFL_BITMAP ** dst,
GFL_INT32 h_increment,
GFL_INT32 l_increment,
GFL_INT32 s_increment );
Parameters
Return value
The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.
See also