Type Alias PFNGLGETNMAPDVARBPROC

pub type PFNGLGETNMAPDVARBPROC = Option<unsafe extern "C" fn(target: GLenum, query: GLenum, bufSize: GLsizei, v: *mut GLdouble)>;

Aliased Type

enum PFNGLGETNMAPDVARBPROC {
    None,
    Some(unsafe extern "C" fn(_: u32, _: u32, _: i32, _: *mut f64)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: u32, _: u32, _: i32, _: *mut f64))

Some value of type T.