/// <summary>
/// WinuserEvent が発生した際に処理するイベント ハンドラー。
/// </summary>
/// <param name="winuserEvent">発生したイベントの種類。</param>
/// <param name="windowClassName">クラス名。</param>
private static void WinuserEventOccuredEventHandler(WinuserEvent winuserEvent, string windowClassName)
{
if (winuserEvent == WinuserEvent.SystemForeground)
{
// WorkerW はデスクトップ
if (string.Equals(windowClassName, "WorkerW", StringComparison.Ordinal) /*|| string.Equals(windowClassName, "Progman", StringComparison.Ordinal)*/)
{
nativeMethods.Window.Topmost = true;
}
else
{
nativeMethods.Window.Topmost = false;
}
}
}
/// <summary>
/// フックを開始します。
/// </summary>
/// <param name="winuserEvent">フック対象のイベント。</param>
public void AddHook(WinuserEvent winuserEvent)
{
if (Window == null)
{
throw new InvalidOperationException("Window is not set.");
}
if (IsHooked)
{
return;
}
IsHooked = true;
_delegate = new WinEventDelegate(WinEventHook);
_hookIntPtr = NativeMethods.SetWinEventHook((uint)winuserEvent, (uint)winuserEvent, IntPtr.Zero, _delegate, 0, 0, WINEVENT_OUTOFCONTEXT);
}
