Window always look like active

Hi,

I have my c# application, base on WPF window. I need one not typical action: if window is not active in a OS, border should still look like active.

Any sugestions ?

THNX in advance
Olek

I found a answer. Maybe someone will look at same problem, so here it is:

Set a hook for control a messages:

HwndSource source = PresentationSource.FromVisual(this) as HwndSource;
source.AddHook(WndProc);


Next support WM_NCACTIVE:

[DllImport("user32.dll")]
static extern IntPtr DefWindowProc(IntPtr hWnd, IntPtr uMsg, IntPtr wParam, IntPtr lParam);

private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (hwnd != this.Handle)
return IntPtr.Zero;

Message m=new Message();
m.Msg=msg;
m.WParam=wParam;
m.LParam=lParam;


if (m.Msg == 0x86) // Protected for draw not active - WM_NCACTIVATE
{

if ( (m.WParam.ToInt32() & 1) == 0)
{
IntPtr ans=DefWindowProc(hwnd, (IntPtr)m.Msg, (IntPtr)1, m.LParam);
handled = true;
return ans;
}
}

return IntPtr.Zero;
}