pub type PFNGLCOPYBUFFERSUBDATAPROC = Option<unsafe extern "C" fn(readtarget: GLenum, writetarget: GLenum, readoffset: GLintptr, writeoffset: GLintptr, size: GLsizeiptr)>;Aliased Type§
enum PFNGLCOPYBUFFERSUBDATAPROC {
None,
Some(unsafe extern "C" fn(_: u32, _: u32, _: isize, _: isize, _: isize)),
}