//SetMouseButtonCallback sets the mouse button callback which is called when a
//mouse button is pressed or released.
//
//When a window loses focus, it will generate synthetic mouse button release
//events for all pressed mouse buttons. You can tell these events from
//user-generated events by the fact that the synthetic ones are generated after
//the window has lost focus, i.e. Focused will be false and the focus
//callback will have already been called.
func (w *Window) SetMouseButtonCallback(cbfun func(w *Window, button MouseButton, action Action, mod ModifierKey)) {
if cbfun == nil {
C.glfwSetMouseButtonCallback(w.data, nil)
} else {
w.fMouseButtonHolder = cbfun
C.glfwSetMouseButtonCallbackCB(w.data)
}
}
// SetMouseButtonCallback sets the mouse button callback which is called when a
// mouse button is pressed or released.
//
// When a window loses focus, it will generate synthetic mouse button release
// events for all pressed mouse buttons. You can tell these events from
// user-generated events by the fact that the synthetic ones are generated after
// the window has lost focus, i.e. Focused will be false and the focus
// callback will have already been called.
func (w *Window) SetMouseButtonCallback(cbfun MouseButtonCallback) (previous MouseButtonCallback) {
previous = w.fMouseButtonHolder
w.fMouseButtonHolder = cbfun
if cbfun == nil {
C.glfwSetMouseButtonCallback(w.data, nil)
} else {
C.glfwSetMouseButtonCallbackCB(w.data)
}
panicError()
return previous
}