Send WM_DPICHANGED_AFTERPARENT to embedded window on DPI change

Co-authored-by: BornToBeRoot <16019165+BornToBeRoot@users.noreply.github.com>

Author: Copilot

Source/NETworkManager.Utilities/NativeMethods.cs

@@ -39,7 +39,8 @@ public enum WindowShowStyle : uint
 
     public enum WM : uint
     {
-        SYSCOMMAND = 0x0112
+        SYSCOMMAND = 0x0112,
+        DPICHANGED_AFTERPARENT = 0x02E3
     }
 
     #endregion

Source/NETworkManager/Controls/PowerShellControl.xaml.cs

@@ -23,6 +23,10 @@ private void WindowGrid_SizeChanged(object sender, SizeChangedEventArgs e)
 
     private void WindowsFormsHost_DpiChanged(object sender, DpiChangedEventArgs e)
     {
+        if (IsConnected && _appWin != IntPtr.Zero)
+            NativeMethods.SendMessage(_appWin, (uint)NativeMethods.WM.DPICHANGED_AFTERPARENT, IntPtr.Zero,
+                IntPtr.Zero);
+
         ResizeEmbeddedWindow();
     }
 

Source/NETworkManager/Controls/PuTTYControl.xaml.cs

@@ -24,6 +24,10 @@ private void WindowGrid_SizeChanged(object sender, SizeChangedEventArgs e)
 
     private void WindowsFormsHost_DpiChanged(object sender, DpiChangedEventArgs e)
     {
+        if (IsConnected && _appWin != IntPtr.Zero)
+            NativeMethods.SendMessage(_appWin, (uint)NativeMethods.WM.DPICHANGED_AFTERPARENT, IntPtr.Zero,
+                IntPtr.Zero);
+
         ResizeEmbeddedWindow();
     }