pub fn flush(&mut self) {
        unsafe {
            gl::Flush();
        }
    }
///
/// Flushes all changes to the device
///
Flushes all changes to the device
Flushes all changes to the device
pub fn flush(&mut self) {
        unsafe {
            gl::Flush();
        }
    }
pub fn flush ( & mut self ) { unsafe { gl :: Flush ( ) ; } }
Flushes all changes to the device
Flushes all changes to the device
&mut self