WM_MOUSEMOVE for controls?

[GirkovArpa]

I would like to handle MOUSEMOVE for a label, but it doesn't have such an event. I don't think labels support custom messages like here, right?

I can't use self.wnd.on().wm_mouse_move({ because it stops firing when the cursor moves over a control.

[GirkovArpa]

I can use GetCursorPos in conjunction with ScreenToClient inside a loop, actually.

[rodrigocfd]

If you want to handle non-ordinary messages in a native control, you must subclass it, which is automatically done through on_subclass method.

Take care though. Subclassing is very dangerous, because you're messing with the internal message handling of the native control.

[GirkovArpa]

Is this correct? It works, but I don't know if it's best to put it inside fn events(&self) { /* ... */ }.

fn events(&self) {
  let label_events = self.lbl.on_subclass();
  label_events.wm_mouse_move({
    move |params| {
      println!("{},{}", params.coords.x, params.coords.y);
    }
  });

[rodrigocfd]

I can't test it right now, but it appears to be correct.