glew_sysType Alias PFNGLTEXTURESUBIMAGE3DEXTPROC
source pub type PFNGLTEXTURESUBIMAGE3DEXTPROC = Option<unsafe extern "C" fn(texture: GLuint, target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type_: GLenum, pixels: *const c_void)>;
enum PFNGLTEXTURESUBIMAGE3DEXTPROC {
None,
Some(unsafe extern "C" fn(_: u32, _: u32, _: i32, _: i32, _: i32, _: i32, _: i32, _: i32, _: i32, _: u32, _: u32, _: *const c_void)),
}