- Make the MessageBoix be RTL and RightAlign aware

- Fixes #313
- Demonstrates #343

Documents/Help/Changelog.md

@@ -9,6 +9,7 @@
 - Sort out the Callback actions that were removed
 * Fixed [#316](https://github.com/Krypton-Suite/Standard-Toolkit/issues/316), Restore `KryptonKInputBox` layout to initial intent.
 * Fixed [#333](https://github.com/Krypton-Suite/Standard-Toolkit/issues/333), Krypton Form - ButtonSpec (And Icon), are Cut Off when maximised
+* Fixed [#313](https://github.com/Krypton-Suite/Standard-Toolkit/issues/313), KryptonMessagebox is not RTL compliant
 =======
 
 ## 2021-09-01 - Build 2109 - September 2021 (Canary)

Source/Krypton Components/Krypton.Navigator/Global/GlobalDeclarations.cs

@@ -10,7 +10,7 @@
  */
 #endregion
 
-// This file holds the global definitions > C# 10
+// This file holds the global definitions >= C# 10
 
 global using System;
 global using System.Collections;

Source/Krypton Components/Krypton.Ribbon/Global/GlobalDeclarations.cs

@@ -10,7 +10,7 @@
  */
 #endregion
 
-// This file holds the global definitions > C# 10
+// This file holds the global definitions >= C# 10
 
 global using System;
 global using System.Collections;

Source/Krypton Components/Krypton.Toolkit/Controls Visuals/KryptonMessageBoxForm.cs

@@ -27,7 +27,7 @@ internal partial class KryptonMessageBoxForm : KryptonForm
         private readonly MessageBoxIcon _messageBoxIcon;
 
         private readonly MessageBoxDefaultButton _defaultButton;
-        private MessageBoxOptions _options; // TODO: What is this used for ? e.g. MessageBoxOptions.RTL
+        private MessageBoxOptions _options; // https://github.com/Krypton-Suite/Standard-Toolkit/issues/313
         // If help information provided or we are not a service/default desktop application then grab an owner for showing the message box
         private readonly IWin32Window _showOwner;
         private readonly HelpInfo _helpInfo;
@@ -88,6 +88,8 @@ internal KryptonMessageBoxForm(IWin32Window showOwner, string text, string capti
             _helpInfo = helpInfo;
             _showOwner = showOwner;
 
+            RightToLeftLayout = _options.HasFlag(MessageBoxOptions.RtlReading);
+
             // Create the form contents
             InitializeComponent();
 
@@ -109,6 +111,11 @@ private void UpdateText()
         {
             Text = (string.IsNullOrEmpty(_caption) ? string.Empty : _caption.Split(Environment.NewLine.ToCharArray())[0]);
             _messageText.Text = _text;
+            _messageText.RightToLeft =  _options.HasFlag(MessageBoxOptions.RightAlign) 
+                ? RightToLeft.Yes 
+                : _options.HasFlag(MessageBoxOptions.RtlReading) 
+                    ? RightToLeft.Inherit
+                    : RightToLeft.No;
         }
 
         private void UpdateTextExtra(bool? showCtrlCopy)

Source/Krypton Components/Krypton.Toolkit/Global/GlobalDeclarations.cs

@@ -10,7 +10,7 @@
  */
 #endregion
 
-// This file holds the global definitions > C# 10
+// This file holds the global definitions >= C# 10
 
 global using System;
 global using System.Collections;