GFL Misc.
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gflGetNumberOfColorsUsed
The gflGetNumberOfColorsUsed gets the total unique colors of a picture.
GFL_UINT32 gflGetNumberOfColorsUsed( GFL_BITMAP* src );
Parameters
- src
- Pointer to a GFL_BITMAP structure.
Return value
- Total unique colors.
gflJpegLosslessTransform
The gflJpegLosslessTransform function applies lossless transformations on a JPEG file.
GFL_ERROR gflJpegLosslessTransform( const char* filename, GFL_LOSSLESS_TRANSFORM transform );
Parameters
- filename
- Pointer to a null-terminated string that contains the filename to modify.
- transform
- Transformation
GFL_LOSSLESS_TRANSFORM_ROTATE90 Rotate of 90 degrees GFL_LOSSLESS_TRANSFORM_ROTATE180 Rotate of 180 degrees GFL_LOSSLESS_TRANSFORM_ROTATE270 Rotate of 270 degrees GFL_LOSSLESS_TRANSFORM_VERTICAL_FLIP Vertical flip GFL_LOSSLESS_TRANSFORM_HORIZONTAL_FLIP Horizontal flip
Return value
- The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.