Type Definition glu_sys::glu::PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC

type PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC = Option<unsafe extern "C" fn(mode: GLenum, count: GLsizei, type_: GLenum, indices: *const c_void, instancecount: GLsizei, basevertex: GLint, baseinstance: GLuint)>;