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CTaskDialog::DoModal

Shows the CTaskDialog and makes it modal.

INT_PTR DoModal (
   HWND hParent = ::GetActiveWindow()
);

Parameters

  • [in] hParent
    The parent window for the CTaskDialog.

Return Value

An integer that corresponds to the selection made by the user.

Remarks

Displays this instance of the CTaskDialog. The application then waits for the user to close the dialog box.

The CTaskDialog closes when the user selects a common button, a command link control, or closes the CTaskDialog. The return value is the identifier that indicates how the user closed the dialog box.

Example

// TODO: Replace the strings below with the appropriate message, 
// main instruction, and dialog title
CString message("This is an important message to the user.");
CString mainInstruction("Important!\nPlease read!");
CString title("Alert Dialog");

CTaskDialog taskDialog(message, mainInstruction, title, 
    TDCBF_YES_BUTTON | TDCBF_NO_BUTTON | TDCBF_CANCEL_BUTTON );

// Setting new information to be able to reuse the dialog resource
taskDialog.SetWindowTitle(L"New title for the task dialog");
taskDialog.SetContent(L"New message to show the user.");
taskDialog.SetMainInstruction(L"Even more important!");
taskDialog.SetMainIcon(TD_ERROR_ICON);
taskDialog.SetDialogWidth(300);

// Add a footer
taskDialog.SetFooterText(L"Footer information for the dialog.");
taskDialog.SetFooterIcon(TD_INFORMATION_ICON);

// Add expansion information
taskDialog.SetExpansionArea(L"Additional information\non two lines.",
    L"Click here for more information.",
    L"Click here to hide the extra information.");

// Change the options to show the expanded information by default.
// It is necessary to retrieve the current options first.
int options = taskDialog.GetOptions();
options |= TDF_EXPANDED_BY_DEFAULT;
taskDialog.SetOptions(options);

taskDialog.DoModal();

Requirements

Header: afxtaskdialog.h

See Also

Reference

CTaskDialog Class

Hierarchy Chart