Type Alias PFNGLWINDOWPOS4DVMESAPROC

pub type PFNGLWINDOWPOS4DVMESAPROC = Option<unsafe extern "C" fn(_: *const f64)>;

Aliased Type

enum PFNGLWINDOWPOS4DVMESAPROC {
    None,
    Some(unsafe extern "C" fn(_: *const f64)),
}

Variants

None

No value.

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

Some value of type T.