Type Alias PFNGLWINDOWPOS2DVMESAPROC 

pub type PFNGLWINDOWPOS2DVMESAPROC = Option<unsafe extern "C" fn(v: *const GLdouble)>;

Aliased Type

pub enum PFNGLWINDOWPOS2DVMESAPROC {
    None,
    Some(unsafe extern "C" fn(*const f64)),
}

Variants

None

No value.

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

Some value of type T.