/// <summary>
/// アクティブウィンドウが変わったら最前面を取り直す．
/// </summary>
private void shellHook_WindowActivated(object sender, ShellHookEventArgs e)
{
User.SetWindowPos(Handle, new IntPtr(-1) /* HWND_TOPMOST */, 0, 0, 0, 0,
SetWindowPosFlag.NoActivate | SetWindowPosFlag.NoMove | SetWindowPosFlag.NoSize);
}
private void shellHook_WindowActivated(object sender, ShellHookEventArgs e)
{
Topmost = false;
Topmost = true;
}