pub type GLDEBUGPROC = Option<extern "system" fn(source: GLenum, gltype: GLenum, id: GLuint, severity: GLenum, length: GLsizei, message: *const GLchar, userParam: *mut c_void)>;Aliased Type§
pub enum GLDEBUGPROC {
None,
Some(extern "system" fn(u32, u32, u32, u32, i32, *const i8, *mut c_void)),
}