//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)
}
}
// 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
}