glew_sys

Type Alias PFNGLWINDOWPOS3DVARBPROC

source 
pub type PFNGLWINDOWPOS3DVARBPROC = Option<unsafe extern "C" fn(p: *const GLdouble)>;

Aliased Type§

enum PFNGLWINDOWPOS3DVARBPROC {
    None,
    Some(unsafe extern "C" fn(_: *const f64)),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "C" fn(_: *const f64))

Some value of type T.