34 lines
1.4 KiB
C#
34 lines
1.4 KiB
C#
using System.Drawing;
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using System.Linq;
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using System.Windows;
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using System.Windows.Forms;
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using System.Windows.Interop;
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using Point = System.Windows.Point;
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namespace Ink_Canvas.Helpers {
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internal class IsOutsideOfScreenHelper {
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public static bool IsOutsideOfScreen(FrameworkElement target) {
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var hwndSource = (HwndSource)PresentationSource.FromVisual(target);
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if (hwndSource is null) {
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return true;
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}
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var hWnd = hwndSource.Handle;
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var targetBounds = GetPixelBoundsToScreen(target);
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var screens = Screen.AllScreens;
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return !screens.Any(x => x.Bounds.IntersectsWith(targetBounds));
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Rectangle GetPixelBoundsToScreen(FrameworkElement visual) {
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var pixelBoundsToScreen = Rect.Empty;
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pixelBoundsToScreen.Union(visual.PointToScreen(new Point(0, 0)));
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pixelBoundsToScreen.Union(visual.PointToScreen(new Point(visual.ActualWidth, 0)));
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pixelBoundsToScreen.Union(visual.PointToScreen(new Point(0, visual.ActualHeight)));
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pixelBoundsToScreen.Union(visual.PointToScreen(new Point(visual.ActualWidth, visual.ActualHeight)));
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return new Rectangle(
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(int)pixelBoundsToScreen.X, (int)pixelBoundsToScreen.Y,
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(int)pixelBoundsToScreen.Width, (int)pixelBoundsToScreen.Height);
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}
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}
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}
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} |