Squashed 'NotifyIconWpf/' content from commit f64d48e

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

NotifyIconWpf/Interop/AppBarInfo.cs

@@ -0,0 +1,133 @@
+// Some interop code taken from Mike Marshall's AnyForm
+
+using System;
+using System.Drawing;
+using System.Runtime.InteropServices;
+
+namespace Hardcodet.Wpf.TaskbarNotification.Interop
+{
+    /// <summary>
+    /// This contains the logic to access the location of the app bar and communicate with it.
+    /// </summary>
+    public class AppBarInfo
+    {
+        [DllImport("user32.dll", CharSet = CharSet.Unicode)]
+        private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
+
+        [DllImport("shell32.dll")]
+        private static extern uint SHAppBarMessage(uint dwMessage, ref APPBARDATA data);
+
+        [DllImport("user32.dll")]
+        private static extern int SystemParametersInfo(uint uiAction, uint uiParam,
+            IntPtr pvParam, uint fWinIni);
+
+        private const int ABM_GETTASKBARPOS = 0x00000005;
+
+
+        private APPBARDATA m_data;
+
+        /// <summary>
+        /// Get on which edge the app bar is located
+        /// </summary>
+        public ScreenEdge Edge
+        {
+            get { return (ScreenEdge) m_data.uEdge; }
+        }
+
+        /// <summary>
+        /// Get the working area
+        /// </summary>
+        public Rectangle WorkArea
+        {
+            get { return GetRectangle(m_data.rc); }
+        }
+
+        private Rectangle GetRectangle(RECT rc)
+        {
+            return new Rectangle(rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top);
+        }
+
+        /// <summary>
+        /// Update the location of the appbar with the specified classname and window name.
+        /// </summary>
+        /// <param name="strClassName">string</param>
+        /// <param name="strWindowName">string</param>
+        private void GetPosition(string strClassName, string strWindowName)
+        {
+            m_data = new APPBARDATA();
+            m_data.cbSize = (uint) Marshal.SizeOf(m_data.GetType());
+
+            IntPtr hWnd = FindWindow(strClassName, strWindowName);
+
+            if (hWnd != IntPtr.Zero)
+            {
+                uint uResult = SHAppBarMessage(ABM_GETTASKBARPOS, ref m_data);
+
+                if (uResult != 1)
+                {
+                    throw new Exception("Failed to communicate with the given AppBar");
+                }
+            }
+            else
+            {
+                throw new Exception("Failed to find an AppBar that matched the given criteria");
+            }
+        }
+
+        /// <summary>
+        /// Updates the system taskbar position
+        /// </summary>
+        public void GetSystemTaskBarPosition()
+        {
+            GetPosition("Shell_TrayWnd", null);
+        }
+
+        /// <summary>
+        /// A value that specifies an edge of the screen.
+        /// </summary>
+        public enum ScreenEdge
+        {
+            /// <summary>
+            /// Undefined
+            /// </summary>
+            Undefined = -1,
+            /// <summary>
+            /// Left edge.
+            /// </summary>
+            Left = 0,
+            /// <summary>
+            /// Top edge.
+            /// </summary>
+            Top = 1,
+            /// <summary>
+            /// Right edge.
+            /// </summary>
+            Right = 2,
+            /// <summary>
+            /// Bottom edge.
+            /// </summary>
+            Bottom = 3
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        private struct APPBARDATA
+        {
+            public uint cbSize;
+            public IntPtr hWnd;
+            public uint uCallbackMessage;
+            public uint uEdge;
+            public RECT rc;
+            public int lParam;
+        }
+
+
+        [StructLayout(LayoutKind.Sequential)]
+        private struct RECT
+        {
+            public int left;
+            public int top;
+            public int right;
+            public int bottom;
+        }
+    }
+}