public ScreensaverView(IntPtr previewHandle)
{
InitializeComponent();
isPreviewWindow = true;
Rect parentRect = new Rect();
#if NET30 || NET35
bool bGetRect = InteropHelper.GetClientRect(previewHandle, ref parentRect);
HwndSourceParameters sourceParams = new HwndSourceParameters("sourceParams");
sourceParams.PositionX = 0;
sourceParams.PositionY = 0;
sourceParams.Height = parentRect.Height;
sourceParams.Width = parentRect.Width;
this.Field.Height = sourceParams.Height;
this.Field.Width = sourceParams.Width;
sourceParams.ParentWindow = previewHandle;
//WS_VISIBLE = 0x10000000; WS_CHILD = 0x40000000; WS_CLIPCHILDREN = 0x02000000;
sourceParams.WindowStyle = (int)(0x10000000L | 0x40000000L | 0x02000000L);
//Using HwndSource instead of this.Show() to properly obtain handle of this window
HwndSource winWPFContent = new HwndSource(sourceParams);
winWPFContent.Disposed += new EventHandler(this.Dispose);
winWPFContent.ContentRendered += new EventHandler(this.Window_Loaded);
winWPFContent.RootVisual = this.Viewbox;
#else
WindowState = WindowState.Normal;
IntPtr windowHandle = new WindowInteropHelper(GetWindow(this)).EnsureHandle();
// Set the preview window as the parent of this window
InteropHelper.SetParent(windowHandle, previewHandle);
// Make this window a tool window while preview.
// A tool window does not appear in the taskbar or in the dialog that appears when the user presses ALT+TAB.
// GWL_EXSTYLE = -20, WS_EX_TOOLWINDOW = 0x00000080L
InteropHelper.SetWindowLong(windowHandle, -20, 0x00000080L);
// Make this a child window so it will close when the parent dialog closes
// GWL_STYLE = -16, WS_CHILD = 0x40000000
InteropHelper.SetWindowLong(windowHandle, -16, 0x40000000L);
// Place the window inside the parent
InteropHelper.GetClientRect(previewHandle, ref parentRect);
Width = parentRect.Width;
Height = parentRect.Height;
#endif
}