close volume control if the mouse leaves it

Vocaluxe/Base/CGraphics.cs

@@ -177,6 +177,7 @@ namespace Vocaluxe.Base
         private static List<IMenu> _PopupScreens = new List<IMenu>();
 
         private static Stopwatch _VolumePopupTimer;
+        private static bool CursorOverVolumeControl = false;
 
         public static float GlobalAlpha
         {
@@ -645,6 +646,17 @@ namespace Vocaluxe.Base
                     }
                 }
 
+                if (CursorOverVolumeControl && !isOverPopupVolumeControl)
+                {
+                    if (_CurrentPopupScreen == EPopupScreens.PopupVolumeControl)
+                    {
+                        HidePopup(EPopupScreens.PopupVolumeControl);
+                        _VolumePopupTimer.Reset();
+                    }
+                }
+                CursorOverVolumeControl = isOverPopupVolumeControl;
+
+
                 bool handled = false;
                 if (_CurrentPopupScreen != EPopupScreens.NoPopup)
                     handled = _PopupScreens[(int)_CurrentPopupScreen].HandleMouse(MouseEvent);