Type Alias PFNGLGETPROGRAMENVPARAMETERDVARBPROC

pub type PFNGLGETPROGRAMENVPARAMETERDVARBPROC = Option<unsafe extern "C" fn(target: GLenum, index: GLuint, params: *mut GLdouble)>;

Aliased Type

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

Variants

None

No value.

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

Some value of type T.