v1.2

FSI.BT.Tools/Global/DllImport/ShowInactiveTopmost.cs

@@ -0,0 +1,46 @@
+// <copyright file="ShowInactiveTopmost.cs" company="PlaceholderCompany">
+// Copyright (c) PlaceholderCompany. All rights reserved.
+// </copyright>
+
+namespace FSI.BT.Tools.Global.DllImports
+{
+    using System.Runtime.InteropServices;
+    using System.Windows.Forms;
+
+    /// <summary>
+    /// wraps the methodcalls to native windows dll's.
+    /// </summary>
+    public static partial class NativeMethods
+    {
+        private const int SW_SHOWNOACTIVATE = 4;
+        private const int HWND_TOPMOST = -1;
+        private const uint SWP_NOACTIVATE = 0x0010;
+
+        public static void User32ShowInactiveTopmost(Form form)
+        {
+            if (form != null)
+            {
+                _ = ShowWindow(form.Handle, SW_SHOWNOACTIVATE);
+                SetWindowPos(
+                    form.Handle.ToInt32(),
+                    HWND_TOPMOST,
+                    form.Left,
+                    form.Top,
+                    form.Width,
+                    form.Height,
+                    SWP_NOACTIVATE);
+            }
+        }
+
+        [DllImport("user32.dll", EntryPoint = "SetWindowPos", SetLastError = true, CharSet = CharSet.Unicode)]
+        [DefaultDllImportSearchPaths(DllImportSearchPath.UserDirectories)]
+        private static extern bool SetWindowPos(
+             int hWnd,             // Window handle
+             int hWndInsertAfter,  // Placement-order handle
+             int X,                // Horizontal position
+             int Y,                // Vertical position
+             int cx,               // Width
+             int cy,               // Height
+             uint uFlags);         // Window positioning flags
+    }
+}