Squashed 'NotifyIconWpf/' content from commit f64d48e

git-subtree-dir: NotifyIconWpf
git-subtree-split: f64d48ec604eef26e5dc1e7c2d5e1e91b329ffac

NotifyIconWpf/Interop/TrayInfo.cs

@@ -0,0 +1,56 @@
+// Some interop code taken from Mike Marshall's AnyForm
+
+using System.Drawing;
+
+namespace Hardcodet.Wpf.TaskbarNotification.Interop
+{
+    /// <summary>
+    /// Resolves the current tray position.
+    /// </summary>
+    public static class TrayInfo
+    {
+        /// <summary>
+        /// Gets the position of the system tray.
+        /// </summary>
+        /// <returns>Tray coordinates.</returns>
+        public static Point GetTrayLocation()
+        {
+            int space = 2;
+            var info = new AppBarInfo();
+            info.GetSystemTaskBarPosition();
+
+            Rectangle rcWorkArea = info.WorkArea;
+
+            int x = 0, y = 0;
+            switch (info.Edge)
+            {
+                case AppBarInfo.ScreenEdge.Left:
+                    x = rcWorkArea.Right + space;
+                    y = rcWorkArea.Bottom;
+                    break;
+                case AppBarInfo.ScreenEdge.Bottom:
+                    x = rcWorkArea.Right;
+                    y = rcWorkArea.Bottom - rcWorkArea.Height - space;
+                    break;
+                case AppBarInfo.ScreenEdge.Top:
+                    x = rcWorkArea.Right;
+                    y = rcWorkArea.Top + rcWorkArea.Height + space;
+                    break;
+                case AppBarInfo.ScreenEdge.Right:
+                    x = rcWorkArea.Right - rcWorkArea.Width - space;
+                    y = rcWorkArea.Bottom;
+                    break;
+            }
+
+            return GetDeviceCoordinates(new Point {X = x, Y = y});
+        }
+
+        /// <summary>
+        /// Recalculates OS coordinates in order to support WPFs coordinate
+        /// system if OS scaling (DPIs) is not 100%.
+        /// </summary>
+        /// <param name="point">Point</param>
+        /// <returns>Point</returns>
+        public static Point GetDeviceCoordinates(Point point) => point.ScaleWithDpi();
+    }
+}