private void SetPos(IntPtr hwnd_after, bool activate)
{
uint _uflags = HWND_FLAG.SWP_NOMOVE | HWND_FLAG.SWP_NOSIZE;
if (!activate)
{
_uflags |= HWND_FLAG.SWP_NOACTIVATE;
}
NativeMethods.SetWindowPos(
new WindowInteropHelper(this).Handle,
hwnd_after,
0,
0,
0,
0,
_uflags
);
}