pub type PFNGLPROGRAMENVPARAMETER4DARBPROC = Option<unsafe extern "C" fn(target: GLenum, index: GLuint, x: GLdouble, y: GLdouble, z: GLdouble, w: GLdouble)>;Aliased Type§
enum PFNGLPROGRAMENVPARAMETER4DARBPROC {
None,
Some(unsafe extern "C" fn(_: u32, _: u32, _: f64, _: f64, _: f64, _: f64)),
}