fix non-client WM_Activate.

8 years ago · 422d798108
1 changed files with 7 additions and 1 deletions
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@ -606,13 +606,19 @@ namespace Avalonia.Win32
                    break;

                case WindowsMessage.WM_NCPAINT:
-                case WindowsMessage.WM_NCACTIVATE:
                    if (!_decorated)
                    {
                        return IntPtr.Zero;
                    }
                    break;

+                case WindowsMessage.WM_NCACTIVATE:
+                    if (!_decorated)
+                    {
+                        return new IntPtr(1);
+                    }
+                    break;
+
                case UnmanagedMethods.WindowsMessage.WM_PAINT:
                    UnmanagedMethods.PAINTSTRUCT ps;
                    if (UnmanagedMethods.BeginPaint(_hwnd, out ps) != IntPtr.Zero)