static void ShowSystemMenu(object o) {
var depo = o as DependencyObject;
if (depo == null)
return;
var win = Window.GetWindow(depo);
if (win == null)
return;
var p = win.PointToScreen(new Point(0, GridCaptionHeight.Value));
WindowUtils.ShowSystemMenu(win, p);
}
protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
var hwndSource = PresentationSource.FromVisual(this) as HwndSource;
Debug.Assert(hwndSource != null);
if (hwndSource != null)
{
hwndSource.AddHook(WndProc);
wpfDpi = 96.0 * hwndSource.CompositionTarget.TransformToDevice.M11;
var w = Width;
var h = Height;
WindowDPI = GetDpi(hwndSource.Handle, (int)wpfDpi);
// For some reason, we can't initialize the non-fit-to-size property, so always force
// manual mode. When we're here, we should already have a valid Width and Height
Debug.Assert(h > 0 && !double.IsNaN(h));
Debug.Assert(w > 0 && !double.IsNaN(w));
SizeToContent = SizeToContent.Manual;
if (!wpfSupportsPerMonitorDpi)
{
double scale = DisableDpiScaleAtStartup ? 1 : WpfPixelScaleFactor;
Width = w * scale;
Height = h * scale;
if (WindowStartupLocation == WindowStartupLocation.CenterOwner || WindowStartupLocation == WindowStartupLocation.CenterScreen)
{
Left -= (w * scale - w) / 2;
Top -= (h * scale - h) / 2;
}
}
}
WindowUtils.UpdateWin32Style(this);
}
protected override void OnClick()
{
switch (CurrentWinSysType)
{
case CurrentWinSysType.Minimize:
WindowUtils.Minimize(window);
break;
case CurrentWinSysType.Maximize:
WindowUtils.Maximize(window);
break;
case CurrentWinSysType.Restore:
WindowUtils.Restore(window);
break;
case CurrentWinSysType.Close:
window.Close();
break;
default:
throw new ArgumentException("Invalid CurrentWinSysType");
}
}
static void ShowSystemMenu(object o)
{
var depo = o as DependencyObject;
if (depo == null)
{
return;
}
var win = Window.GetWindow(depo);
if (win == null)
{
return;
}
var mwin = win as MetroWindow;
Debug.Assert(mwin != null);
var scale = mwin?.WpfPixelScaleFactor ?? 1;
var p = win.PointToScreen(new Point(0 * scale, GridCaptionHeight.Value * scale));
WindowUtils.ShowSystemMenu(win, p);
}
protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
WindowUtils.UpdateWin32Style(this);
}
