/// <summary>
/// Raises a callback.
/// </summary>
/// <param name="e">The <see cref="VistaTaskDialogNotificationArgs"/> instance containing the event data.</param>
protected void OnCallback(VistaTaskDialogNotificationArgs e)
{
if (options.Callback != null)
{
HandleCallbackReturn(e, options.Callback(this, e, options.CallbackData));
}
}
private bool taskDialog_Callback2(IActiveTaskDialog dialog, VistaTaskDialogNotificationArgs args, object callbackData)
{
bool result = false;
switch (args.Notification)
{
case VistaTaskDialogNotification.Created:
_downloadedPercent = 0;
dialog.SetProgressBarRange(0, 100);
break;
case VistaTaskDialogNotification.ButtonClicked:
if (args.ButtonIndex == 0)
{
_downloadTimerReset = true;
result = true; // prevent dialog from closing
}
break;
case VistaTaskDialogNotification.Timer:
if (_downloadedPercent < 100 && _downloadRandomizer.Next(0, 3) == 0)
{
_downloadedPercent++;
dialog.SetProgressBarPosition(_downloadedPercent);
dialog.SetWindowTitle(
String.Format(
"{0:P0} Complete Downloading File...",
(Convert.ToDouble(_downloadedPercent) / 100d)));
}
else if (_downloadedPercent >= 100)
{
// Download finished
// Close the dialog by simulating a click on the cancel button
dialog.ClickCustomButton(1);
// Alternative method:
//dialog.ClickButton(TaskDialog.GetButtonIdForCustomButton(1));
}
// 131072 = 1 MB in bytes
dialog.SetContent(
String.Format(
"Time elapsed: {0} | Download rate: {1}/s",
TimeSpan.FromMilliseconds(args.TimerTickCount).ToString(@"h\:mm\:ss"),
GetByteScaleSizeBinary(_downloadRandomizer.Next(0, 131072))));
if (_downloadTimerReset)
{
// TRUE: reset tick count (args.TimerTickCount)
result = true;
_downloadTimerReset = false;
}
break;
}
return(result);
}
/// <summary>
/// Notifies any callback handlers that the dialog has been created but not yet shown.
/// </summary>
public void NotifyCreated()
{
var args = new VistaTaskDialogNotificationArgs();
args.Config = this.options;
args.Notification = VistaTaskDialogNotification.Created;
OnCallback(args);
}
private void CallbackTimer_Tick(object sender, EventArgs e)
{
var args = new VistaTaskDialogNotificationArgs();
args.Config = this.options;
args.Notification = VistaTaskDialogNotification.Timer;
args.TimerTickCount = Convert.ToUInt32(Math.Round(DateTime.Now.Subtract(_callbackTimerStart).TotalMilliseconds, 0));
OnCallback(args);
}
/// <summary>
/// Notifies any callback handlers that the dialog is destroyed.
/// </summary>
public void NotifyClosed()
{
if (options.EnableCallbackTimer)
{
_callbackTimer.Stop();
}
var args = new VistaTaskDialogNotificationArgs();
args.Config = this.options;
args.Notification = VistaTaskDialogNotification.Destroyed;
OnCallback(args);
}
private bool taskDialog_Callback1(IActiveTaskDialog dialog, VistaTaskDialogNotificationArgs args, object callbackData)
{
if (args.Notification == VistaTaskDialogNotification.HyperlinkClicked)
{
try
{
Process.Start(args.Hyperlink);
}
catch
{
}
}
return(false);
}
private bool taskDialog_Callback1(IActiveTaskDialog dialog, VistaTaskDialogNotificationArgs args, object callbackData)
{
bool result = false;
switch (args.Notification)
{
case VistaTaskDialogNotification.HyperlinkClicked:
//result = true; // prevents HREF from being processed automatically by ShellExecute
MessageBox.Show("Hyperlink clicked: " + args.Hyperlink);
break;
}
return(result);
}
/// <summary>
/// Notifies any callback handlers that the close button was clicked.
/// </summary>
public void NotifyClosing()
{
// Caused by clicking X or Alt+F4 or Esc, so notify via callback
if (!_requestingClose)
{
var args = new VistaTaskDialogNotificationArgs();
args.Config = this.options;
args.Notification = VistaTaskDialogNotification.ButtonClicked;
args.ButtonId = (int)TaskDialogSimpleResult.Cancel;
args.ButtonIndex = TaskDialog.GetButtonIndexForCommonButton(options.CommonButtons, args.ButtonId);
//args.ButtonIndex = -1;
// See TaskDialogInterop.cs PrivateCallback method for why
//the above line is commented out
OnCallback(args);
}
}
private void HandleCallbackReturn(VistaTaskDialogNotificationArgs e, bool returnValue)
{
switch (e.Notification)
{
default: // all others
// Return value ignored according to MSDN
break;
case VistaTaskDialogNotification.ButtonClicked:
// TRUE : prevent dialog from closing
_preventClose = returnValue;
break;
case VistaTaskDialogNotification.Timer:
// TRUE : reset tickcount
if (returnValue)
{
_callbackTimerStart = DateTime.Now;
}
break;
}
}
