code: func GetTransformFeedbackiv(xfb uint32, pname uint32, param *int32) {
  	C.glowGetTransformFeedbackiv(gpGetTransformFeedbackiv, (C.GLuint)(xfb), (C.GLenum)(pname), (*C.GLint)(unsafe.Pointer(param)))
  }
docs: // query the state of a transform feedback object.