Example #1
0
//SetRefreshCallback sets the refresh callback of the window, which
//is called when the client area of the window needs to be redrawn, for example
//if the window has been exposed after having been covered by another window.
//
//On compositing window systems such as Aero, Compiz or Aqua, where the window
//contents are saved off-screen, this callback may be called only very
//infrequently or never at all.
func (w *Window) SetRefreshCallback(cbfun func(w *Window)) {
	if cbfun == nil {
		C.glfwSetWindowRefreshCallback(w.data, nil)
	} else {
		w.fRefreshHolder = cbfun
		C.glfwSetWindowRefreshCallbackCB(w.data)
	}
}
Example #2
0
// SetRefreshCallback sets the refresh callback of the window, which
// is called when the client area of the window needs to be redrawn, for example
// if the window has been exposed after having been covered by another window.
//
// On compositing window systems such as Aero, Compiz or Aqua, where the window
// contents are saved off-screen, this callback may be called only very
// infrequently or never at all.
func (w *Window) SetRefreshCallback(cbfun RefreshCallback) (previous RefreshCallback) {
	previous = w.fRefreshHolder
	w.fRefreshHolder = cbfun
	if cbfun == nil {
		C.glfwSetWindowRefreshCallback(w.data, nil)
	} else {
		C.glfwSetWindowRefreshCallbackCB(w.data)
	}
	panicError()
	return previous
}