Type Alias PFNGLWINDOWPOS2FMESAPROC 

pub type PFNGLWINDOWPOS2FMESAPROC = Option<unsafe extern "C" fn(x: GLfloat, y: GLfloat)>;

Aliased Type

pub enum PFNGLWINDOWPOS2FMESAPROC {
    None,
    Some(unsafe extern "C" fn(f32, f32)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(f32, f32))

Some value of type T.