Win32 - Fix maximized window being able to resize (#19620)

* fix maximized window being able to resize * only set border style when client area is extended
5 months ago · 7bc6b00340
1 changed files with 5 additions and 1 deletions
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@ -1459,7 +1459,7 @@ namespace Avalonia.Win32
                else
                    style &= ~WindowStyles.WS_MAXIMIZEBOX;

-                const WindowStyles fullDecorationFlags = WindowStyles.WS_CAPTION | WindowStyles.WS_SYSMENU | WindowStyles.WS_BORDER;
+                const WindowStyles fullDecorationFlags = WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER;

                if (newProperties.Decorations == SystemDecorations.Full)
                {
@ -1473,6 +1473,10 @@ namespace Avalonia.Win32
                    {
                        style |= WindowStyles.WS_THICKFRAME | WindowStyles.WS_BORDER;
                    }
+                    else if(newProperties.WindowState == WindowState.Maximized && _isClientAreaExtended)
+                    {
+                        style |= WindowStyles.WS_THICKFRAME;
+                    }
                }

                var windowStates = GetWindowStateStyles();