Fixed|Client|Windows: Spurious shooting when dismissing taskbar with …

…mouse

The mouse is now trapped at the button release event rather than press,
so that DirectInput isn't detecting a mouse down state when the mouse is
trapped.

doomsday/client/src/ui/widgets/legacywidget.cpp

@@ -251,7 +251,7 @@ bool LegacyWidget::handleEvent(Event const &event)
        App_GameLoaded())
     {
         MouseEvent const &mouse = event.as<MouseEvent>();
-        if(mouse.state() == MouseEvent::Pressed && hitTest(mouse.pos()))
+        if(mouse.state() == MouseEvent::Released && hitTest(mouse.pos()))
         {
             if(root().focus())
             {