private void WindowControlCanvas_MouseDown(object sender, MouseButtonEventArgs e)
{
WindowMovement.moveWindow(this, e);
}
private void CheckMouseOver(object?sender, EventArgs e)
{
if (this.mouseOverWindows.Count == 0)
{
return;
}
bool isOver = false;
IEnumerable <Window> windows = this.mouseOverWindows.Where(w => w.IsVisible && w.Opacity > 0);
Point?cursor = null;
// Window.IsMouseOver is false if the mouse is over the window border, check if that's the case.
foreach (Window window in windows)
{
if (window.IsMouseOver)
{
isOver = true;
break;
}
cursor ??= PresentationSource.FromVisual(window)?.CompositionTarget.TransformFromDevice
.Transform(WindowMovement.GetCursorPos());
if (cursor is not null)
{
System.Windows.Rect rc = window.GetRect();
rc.Inflate(10, 10);
if (rc.Contains(cursor.Value))
{
isOver = true;
if (this.mouseTimer is null)
{
// Keep an eye on the current position.
this.mouseTimer = new DispatcherTimer(DispatcherPriority.Input)
{
Interval = TimeSpan.FromMilliseconds(100),
};
this.mouseTimer.Tick += this.CheckMouseOver;
this.mouseTimer.Start();
}
break;
}
}
}
if (!isOver)
{
this.mouseTimer?.Stop();
this.mouseTimer = null;
}
if (this.mouseOver != isOver)
{
this.mouseOver = isOver;
if (isOver)
{
this.MouseEnter?.Invoke(sender, new EventArgs());
}
else
{
this.MouseLeave?.Invoke(sender, new EventArgs());
}
}
}
private void test_MouseDown(object sender, MouseButtonEventArgs e)
{
WindowMovement.moveWindow(this, e);
}