Exemple #1
0
 private Subclass(IntPtr hwnd)
 {
     FHwnd = hwnd;
     FSubclassProcDelegate = SubclassProc;
     if (!ComCtl32.SetWindowSubclass(FHwnd, FSubclassProcDelegate, UIntPtr.Zero, IntPtr.Zero))
     {
         throw new Exception("SetWindowSubclass failed!");
     }
 }
Exemple #2
0
 private IntPtr SubclassProc(IntPtr hWnd, WM msg, IntPtr wParam, IntPtr lParam, UIntPtr uIdSubclass, IntPtr dwRefData)
 {
     if (WindowMessage != null)
     {
         WindowMessage(this, new WMEventArgs(hWnd, msg, wParam, lParam));
     }
     if (msg == WM.NCDESTROY)
     {
         Dispose();
     }
     return(ComCtl32.DefSubclassProc(hWnd, msg, wParam, lParam));
 }
Exemple #3
0
 public void Dispose()
 {
     if (FHwnd != IntPtr.Zero)
     {
         ComCtl32.RemoveWindowSubclass(FHwnd, FSubclassProcDelegate, UIntPtr.Zero);
         FHwnd = IntPtr.Zero;
         if (Disposed != null)
         {
             Disposed(this, EventArgs.Empty);
         }
         WindowMessage = null;
         Disposed      = null;
         GC.SuppressFinalize(this);
     }
 }
Exemple #4
0
        private IntPtr SubclassProc(IntPtr hWnd, WM msg, UIntPtr wParam, IntPtr lParam, UIntPtr uIdSubclass, IntPtr dwRefData)
        {
            var handled = false;

            if (WindowMessage != null)
            {
                var args = new WMEventArgs(hWnd, msg, wParam, lParam);
                WindowMessage(this, args);
                handled = args.Handled;
            }
            if (msg == WM.NCDESTROY)
            {
                Dispose();
            }
            if (!handled)
            {
                return(ComCtl32.DefSubclassProc(hWnd, msg, wParam, lParam));
            }
            else
            {
                return(IntPtr.Zero);
            }
        }