/// <inheritdoc/> 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 = new Size(96.0 * hwndSource.CompositionTarget.TransformToDevice.M11, 96.0 * hwndSource.CompositionTarget.TransformToDevice.M22); var w = Width; var h = Height; WindowDpi = GetDpi(hwndSource.Handle) ?? wpfDpi; if (!wpfSupportsPerMonitorDpi) { double scale = DisableDpiScalingAtStartup ? 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); }
/// <inheritdoc/> protected override void OnSourceInitialized(EventArgs e) { base.OnSourceInitialized(e); var hwndSource = PresentationSource.FromVisual(this) as HwndSource; Debug.Assert(!(hwndSource is null)); if (!(hwndSource is null)) { hwndSource.AddHook(WndProc); wpfDpi = new Size(96.0 * hwndSource.CompositionTarget.TransformToDevice.M11, 96.0 * hwndSource.CompositionTarget.TransformToDevice.M22); var w = Width; var h = Height; WindowDpi = GetDpi(hwndSource.Handle) ?? wpfDpi; } WindowUtils.UpdateWin32Style(this); }
/// <inheritdoc/> 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); }