Type Alias PFNGLWINDOWPOS4IVMESAPROC

pub type PFNGLWINDOWPOS4IVMESAPROC = Option<unsafe extern "C" fn(_: *const i32)>;

Aliased Type

enum PFNGLWINDOWPOS4IVMESAPROC {
    None,
    Some(unsafe extern "C" fn(_: *const i32)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *const i32))

Some value of type T.