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 OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
WindowUtils.UpdateWin32Style(this);
}
