private void Disposing(bool disposing)
{
if (hWnd != null)
{
//remove this from the clipboard chain
NativeMethods.ChangeClipboardChain(hWnd, hWndNextViewer);
hWnd = IntPtr.Zero;
}
if (disposing)
{
//destroy the handle
if (Handle != IntPtr.Zero)
{
DestroyHandle();
}
}
}