/// <summary>
/// メッセージダイアログ
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void MessageDialog_Click(object sender, RoutedEventArgs e)
{
var dlg = new MessageDialog("メッセージ", "タイトル");
// It doesn't work on .NET 5
// ((IInitializeWithWindow)(object)dlg).Initialize(new WindowInteropHelper(this).Handle);
var withWindow = dlg.As <IInitializeWithWindow>();;
withWindow.Initialize(new WindowInteropHelper(Application.Current.MainWindow).Handle);
await dlg.ShowAsync();
}
public static void Initialize(this MessageDialog md, Window window = null)
{
IInitializeWithWindow initializeWithWindowWrapper = md.As <IInitializeWithWindow>();
IntPtr hwnd;
if (window == null)
{
hwnd = PInvoke.User32.GetActiveWindow();
}
else
{
hwnd = window.As <IWindowNative>().WindowHandle;
};
initializeWithWindowWrapper.Initialize(hwnd);
}
public static void Initialize(this MessageDialog md, IntPtr hWndArg)
{
IInitializeWithWindow initializeWithWindowWrapper = md.As <IInitializeWithWindow>();
IntPtr hwnd;
if (hWndArg == IntPtr.Zero)
{
hwnd = PInvoke.User32.GetActiveWindow();
}
else
{
hwnd = hWndArg;
}
initializeWithWindowWrapper.Initialize(hwnd);
}
