Type Alias PFNGLSAMPLEMASKEXTPROC 

pub type PFNGLSAMPLEMASKEXTPROC = Option<unsafe extern "C" fn(value: GLclampf, invert: GLboolean)>;

Aliased Type

pub enum PFNGLSAMPLEMASKEXTPROC {
    None,
    Some(unsafe extern "C" fn(f32, u8)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(f32, u8))

Some value of type T.