Explicitly bring application window to front on startup.

etc/utils/win32/post-install-helper/post-install-launcher.nsi

@@ -26,7 +26,9 @@ SubCaption 4 " "
 	Sleep 333
 !macroend
 
-Section ""
+Section
+	BringToFront # Just to be sure!
+
 	!insertmacro PrintStatusMessage "Detecting operating system, please wait..."
 	${IfNot} ${AtLeastBuild} 7601
 		MessageBox MB_ICONSTOP|MB_TOPMOST "This application runs on Windows 7 (SP1) or later!"
@@ -40,7 +42,7 @@ Section ""
 	ReadRegDWORD $0 HKLM 'SOFTWARE\WOW6432Node\Microsoft\NET Framework Setup\NDP\v4\Full' 'Release'
 	${IfNot} ${Errors}
 		DetailPrint "Installed release: $0"
-		${IfThen} $0 >= 528040 ${|} Goto launch_application ${|}
+		${IfThen} $0 >= 461808 ${|} Goto launch_application ${|}
 	${Else}
 		DetailPrint ".NET Framework not found!"
 	${Endif}

gui/SlunkCryptGUI.csproj

@@ -96,6 +96,7 @@
     <Compile Include="Utilities\FontSizeConverter.cs" />
     <Compile Include="Utilities\ProcessRunner.cs" />
     <Compile Include="Utilities\VersionInfo.cs" />
+    <Compile Include="Utilities\WindowHelper.cs" />
     <Page Include="Controls\Hyperlink.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>

gui/SlunkCryptGUI.xaml.cs

@@ -3,6 +3,7 @@
 /* This work has been released under the CC0 1.0 Universal license!           */
 /******************************************************************************/
 
+using Microsoft.Win32;
 using System;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
@@ -19,7 +20,6 @@ using System.Windows.Media;
 using System.Windows.Media.Effects;
 using System.Windows.Shell;
 using System.Windows.Threading;
-using Microsoft.Win32;
 
 using com.muldersoft.slunkcrypt.gui.ctrls;
 using com.muldersoft.slunkcrypt.gui.process;
@@ -114,6 +114,7 @@ namespace com.muldersoft.slunkcrypt.gui
             TabControl.MinHeight = TabControl.MaxHeight = TabControl.ActualHeight;
             MinWidth = MaxWidth = ActualWidth;
             MinHeight = MaxHeight = ActualHeight;
+            this.BringWindowToTop();
         }
 
         private void Button_Encrypt_InputFile_Click(object sender, RoutedEventArgs e)

gui/Utilities/WindowHelper.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Interop;
+
+namespace com.muldersoft.slunkcrypt.gui.utils
+{
+    public static class WindowHelper
+    {
+        private static readonly IEnumerable<bool> enableTopmost = Array.AsReadOnly(new bool[] { true, false });
+
+        public static void BringWindowToTop(this Window window)
+        {
+            if (!ReferenceEquals(window, null))
+            {
+                try
+                {
+                    WindowInteropHelper interopHelper = new WindowInteropHelper(window);
+                    NativeMethods.BringWindowToTop(interopHelper.Handle);
+                    if (!NativeMethods.SetForegroundWindow(interopHelper.Handle))
+                    {
+                        foreach (bool flag in enableTopmost)
+                        {
+                            window.Topmost = flag;
+                        }
+                    }
+                }
+                catch { }
+            }
+        }
+
+        private static class NativeMethods
+        {
+            [DllImport("user32.dll", SetLastError = true)]
+            public static extern bool BringWindowToTop(IntPtr hWnd);
+
+            [DllImport("user32.dll", SetLastError = true)]
+            public static extern bool SetForegroundWindow(IntPtr hWnd);
+        }
+    }
+}