pub extern "C-unwind" fn CGBitmapContextGetAlphaInfo(
context: Option<&CGContext>,
) -> CGImageAlphaInfoAvailable on crate features
CGBitmapContext and CGContext and CGImage only.pub extern "C-unwind" fn CGBitmapContextGetAlphaInfo(
context: Option<&CGContext>,
) -> CGImageAlphaInfoCGBitmapContext and CGContext and CGImage only.