public static void makeTransparent(IntPtr hwnd)
{
// Change the extended window style to include WS_EX_TRANSPARENT
int extendedStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
SystemTransparent.SetWindowLong(hwnd, GWL_EXSTYLE, extendedStyle |
WS_EX_TRANSPARENT);
}
protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
// Get this window's handle
IntPtr hwnd = new WindowInteropHelper(this).Handle;
SystemTransparent.makeTransparent(hwnd);
}
