protected void UnregisterAppBar()
{
if (AppBarHelper.appBars.Contains(Handle))
{
AppBarHelper.RegisterBar(this, ActualWidth * dpiScale, desiredHeight * dpiScale);
}
}
protected void RegisterAppBar()
{
if (!Shell.IsCairoRunningAsShell && enableAppBar && !AppBarHelper.appBars.Contains(Handle))
{
appbarMessageId = AppBarHelper.RegisterBar(this, ActualWidth * dpiScale, desiredHeight * dpiScale, appBarEdge);
}
}
private void OnSourceInitialized(object sender, EventArgs e)
{
// set up helper and get handle
helper = new WindowInteropHelper(this);
Handle = helper.Handle;
// set up window procedure
HwndSource source = HwndSource.FromHwnd(helper.Handle);
source.AddHook(new HwndSourceHook(WndProc));
// set initial DPI. We do it here so that we get the correct value when DPI has changed since initial user logon to the system.
if (Screen.Primary)
{
Shell.DpiScale = PresentationSource.FromVisual(Application.Current.MainWindow).CompositionTarget.TransformToDevice.M11;
}
dpiScale = PresentationSource.FromVisual(this).CompositionTarget.TransformToDevice.M11;
setPosition();
if (Shell.IsCairoRunningAsShell)
{
// set position again, on a delay, in case one display has a different DPI. for some reason the system overrides us if we don't wait
delaySetPosition();
}
// register appbar
if (!Shell.IsCairoRunningAsShell && enableAppBar)
{
appbarMessageId = AppBarHelper.RegisterBar(this, ActualWidth * dpiScale, desiredHeight * dpiScale, appBarEdge);
}
// hide from alt-tab etc
Shell.HideWindowFromTasks(Handle);
// register for full-screen notifications
FullScreenHelper.Instance.FullScreenApps.CollectionChanged += FullScreenApps_CollectionChanged;
postInit();
}
private void OnClosing(object sender, CancelEventArgs e)
{
IsClosing = true;
customClosing();
if (Startup.IsShuttingDown && Screen.Primary)
{
// unregister appbar
if (AppBarHelper.appBars.Contains(Handle))
{
AppBarHelper.RegisterBar(this, ActualWidth * dpiScale, desiredHeight * dpiScale);
}
// unregister full-screen notifications
FullScreenHelper.Instance.FullScreenApps.CollectionChanged -= FullScreenApps_CollectionChanged;
// dispose the full screen helper since we are the primary instance
FullScreenHelper.Instance.Dispose();
}
else if (WindowManager.Instance.IsSettingDisplays || Startup.IsShuttingDown)
{
// unregister appbar
if (AppBarHelper.appBars.Contains(Handle))
{
AppBarHelper.RegisterBar(this, ActualWidth * dpiScale, desiredHeight * dpiScale);
}
// unregister full-screen notifications
FullScreenHelper.Instance.FullScreenApps.CollectionChanged -= FullScreenApps_CollectionChanged;
}
else
{
IsClosing = false;
e.Cancel = true;
}
}