WPF equivalent of Application.AddMessageFilter (Windows Forms)

Question

I was using Application.AddMessageFilter() in my WinForms applications (when working with unmanaged code).

Now I'm switching to WPF and can't find this functionality.

Please advice where it can be found or implemented.

Answer 1

In WPF, you can use ComponentDispatcher.ThreadFilterMessage event.

ComponentDispatcher.ThreadFilterMessage += ComponentDispatcher_ThreadFilterMessage;
private void ComponentDispatcher_ThreadFilterMessage(ref MSG msg, ref bool handled)
{
     if (msg.message == 513)//MOUSE_LEFTBUTTON_DOWN
     {
         //todo
     }
}