static int TaskDialogCallback(IntPtr hwnd, TaskDialogNotifications uNotification, IntPtr wp, IntPtr lp, IntPtr dwRefData)
{
switch (uNotification)
{
case TaskDialogNotifications.TDN_CREATED:
SendMessage(hwnd, (int)TaskDialogMessages.TDM_SET_PROGRESS_BAR_MARQUEE, TRUE, new IntPtr(20));
break;
case TaskDialogNotifications.TDN_NAVIGATED:
break;
case TaskDialogNotifications.TDN_BUTTON_CLICKED:
switch (wp.ToInt32())
{
case DialogButtonIds.IDCANCEL:
return(HRESULT.S_OK);
default:
return(HRESULT.S_FALSE);
}
case TaskDialogNotifications.TDN_HYPERLINK_CLICKED:
int a = 0;
break;
case TaskDialogNotifications.TDN_TIMER:
break;
case TaskDialogNotifications.TDN_DESTROYED:
return(HRESULT.S_OK);
case TaskDialogNotifications.TDN_RADIO_BUTTON_CLICKED:
break;
case TaskDialogNotifications.TDN_DIALOG_CONSTRUCTED:
break;
case TaskDialogNotifications.TDN_VERIFICATION_CLICKED:
break;
case TaskDialogNotifications.TDN_HELP:
break;
case TaskDialogNotifications.TDN_EXPANDO_BUTTON_CLICKED:
break;
default:
break;
}
return(HRESULT.S_FALSE);
}
private int TaskDialogCallbackProc(IntPtr hWnd, TaskDialogNotifications notification,
IntPtr wparam, IntPtr lparam, IntPtr referencedata)
{
try
{
hwndDialog = hWnd;
switch (notification)
{
case TaskDialogNotifications.Created:
ApplyButtonInitialization();
OnOpened(EventArgs.Empty);
break;
case TaskDialogNotifications.Destroyed:
OnClosing(EventArgs.Empty);
// Clear the dialog handle.
hwndDialog = IntPtr.Zero;
break;
case TaskDialogNotifications.Navigated:
ApplyButtonInitialization();
OnNavigated(EventArgs.Empty);
break;
case TaskDialogNotifications.HyperlinkClicked:
string link = Marshal.PtrToStringUni(lparam);
OnHyperlinkClicked(new HyperlinkClickedEventArgs(link));
break;
case TaskDialogNotifications.ButtonClicked:
// Check if the button is part of the custom buttons.
int buttonID = wparam.ToInt32();
CustomButton bt;
if (currentCustomButtons != null && currentCustomButtons.TryGetValue(buttonID, out bt))
return bt.ButtonClicked?.Invoke(bt, EventArgs.Empty) ?? true ? HResultOk : HResultFalse;
else
return CommonButtonClicked?.Invoke(this, new CommonButtonClickedEventArgs((TaskDialogResult)buttonID)) ?? true ? HResultOk : HResultFalse;
case TaskDialogNotifications.RadioButtonClicked:
int rbuttonID = wparam.ToInt32();
RadioButton rbt;
// Note: It should not happen that we don't find the radio button id.
if (currentRadioButtons != null && currentRadioButtons.TryGetValue(rbuttonID, out rbt))
rbt.OnRadioButtonClicked(EventArgs.Empty);
break;
case TaskDialogNotifications.ExpandButtonClicked:
OnExpandoButtonClicked(new BooleanStatusEventArgs(wparam != IntPtr.Zero));
break;
case TaskDialogNotifications.VerificationClicked:
OnVerificationClicked(new BooleanStatusEventArgs(wparam != IntPtr.Zero));
break;
case TaskDialogNotifications.Help:
OnHelp(EventArgs.Empty);
break;
case TaskDialogNotifications.Timer:
OnTimerTick(EventArgs.Empty);
break;
}
return HResultOk;
}
catch (Exception e)
{
// We must catch all exceptions and translate them into a HResult, so that the TaskDialog function
// is aware of the error and can return, where we rethrow the exception from the HResult.
return Marshal.GetHRForException(e);
}
}