Function XSetAfterFunction

pub unsafe extern "C" fn XSetAfterFunction(
    arg1: *mut _XDisplay,
    arg2: Option<unsafe extern "C" fn(_: *mut _XDisplay) -> i32>,
) -> Option<unsafe extern "C" fn(_: *mut _XDisplay, _: Option<unsafe extern "C" fn(_: *mut _XDisplay) -> i32>) -> i32> 
Available on crate feature dep_sdl2 only.