Define SWP constants for SetWindowPos flags

Sources/DesktopManager/MonitorNativeMethods.cs

@@ -65,12 +65,12 @@
     /// <summary>
     /// Enumerates all top-level windows.
     /// </summary>
     /// <param name="lpEnumFunc">The callback function to invoke for each window.</param>
     /// <param name="lParam">Application-defined value to pass to the callback function.</param>
     /// <returns>True if the enumeration completes, false if it was cancelled.</returns>
     public delegate bool EnumWindowsProc(IntPtr hWnd, int lParam);
     [DllImport("user32.dll")]
     public static extern bool EnumWindows(EnumWindowsProc enumFunc, int lParam);
 
     /// <summary>
     /// Gets the window text length.
@@ -159,5 +159,11 @@
     /// Window style values
     /// </summary>
     public const int WS_MINIMIZE = 0x20000000;
     public const int WS_MAXIMIZE = 0x01000000;
+
+    /// <summary>
+    /// Window position flags
+    /// </summary>
+    public const int SWP_NOZORDER = 0x0004;
+    public const int SWP_NOSIZE = 0x0001;
 }

Sources/DesktopManager/WindowManager.cs

@@ -132,7 +132,7 @@ public void SetWindowPosition(WindowInfo windowInfo, int left, int top) {
                 top,
                 -1,
                 -1,
-                1)) {
+                MonitorNativeMethods.SWP_NOZORDER | MonitorNativeMethods.SWP_NOSIZE)) {
                 throw new InvalidOperationException("Failed to set window position");
             }
         }
@@ -146,11 +146,9 @@ public void SetWindowPosition(WindowInfo windowInfo, int left, int top) {
         /// <param name="width">The width of the window. Use -1 to keep current width.</param>
         /// <param name="height">The height of the window. Use -1 to keep current height.</param>
         public void SetWindowPosition(WindowInfo windowInfo, int left, int top, int width = -1, int height = -1) {
-            const int SWP_NOZORDER = 0x0004;
             const int SWP_NOMOVE = 0x0002;
-            const int SWP_NOSIZE = 0x0001;
 
-            int flags = SWP_NOZORDER;
+            int flags = MonitorNativeMethods.SWP_NOZORDER;
 
             // If position is -1, don't move
             if (left < 0 && top < 0) {
@@ -159,7 +157,7 @@ public void SetWindowPosition(WindowInfo windowInfo, int left, int top, int widt
 
             // If size is -1, don't resize
             if (width < 0 && height < 0) {
-                flags |= SWP_NOSIZE;
+                flags |= MonitorNativeMethods.SWP_NOSIZE;
             }
 
             if (!MonitorNativeMethods.SetWindowPos(