CTaskDialog Class

Article
04/28/2015

A pop-up dialog box that functions like a message box but can display additional information to the user. The CTaskDialog also includes functionality for gathering information from the user.

class CTaskDialog : public CObject

Members

Constructors

CTaskDialog::CTaskDialog

Constructs a CTaskDialog object.

Methods

CTaskDialog::AddCommandControl	Adds a command button control to the CTaskDialog.
CTaskDialog::AddRadioButton	Adds a radio button to the CTaskDialog.
CTaskDialog::ClickCommandControl	Clicks a command button control or common button programmatically.
CTaskDialog::ClickRadioButton	Clicks a radio button programmatically.
CTaskDialog::DoModal	Displays the CTaskDialog.
CTaskDialog::GetCommonButtonCount	Retrieves the number of common buttons available.
CTaskDialog::GetCommonButtonFlag	Converts a standard Windows button to the common button type associated with the CTaskDialog class.
CTaskDialog::GetCommonButtonId	Converts one of the common button types associated with the CTaskDialog class to a standard Windows button.
CTaskDialog::GetOptions	Returns the option flags for this CTaskDialog.
CTaskDialog::GetSelectedCommandControlID	Returns the selected command button control.
CTaskDialog::GetSelectedRadioButtonID	Returns the selected radio button.
CTaskDialog::GetVerificationCheckboxState	Retrieves the state of the verification check box.
CTaskDialog::IsCommandControlEnabled	Determines whether a command button control or common button is enabled.
CTaskDialog::IsRadioButtonEnabled	Determines whether a radio button is enabled.
CTaskDialog::IsSupported	Determines whether the computer that is running the application supports the CTaskDialog.
CTaskDialog::LoadCommandControls	Adds command button controls by using data from the string table.
CTaskDialog::LoadRadioButtons	Adds radio buttons by using data from the string table.
CTaskDialog::NavigateTo	Transfers the focus to another CTaskDialog.
CTaskDialog::OnCommandControlClick	The framework calls this method when the user clicks a command button control.
CTaskDialog::OnCreate	The framework calls this method after it creates the CTaskDialog.
CTaskDialog::OnDestroy	The framework calls this method immediately before it destroys the CTaskDialog.
CTaskDialog::OnExpandButtonClick	The framework calls this method when the user clicks on the expansion button.
CTaskDialog::OnHelp	The framework calls this method when the user requests help.
CTaskDialog::OnHyperlinkClick	The framework calls this method when the user clicks on a hyperlink.
CTaskDialog::OnInit	The framework calls this method when the CTaskDialog is initialized.
CTaskDialog::OnNavigatePage	The framework calls this method when the user moves the focus with regard to controls on the CTaskDialog.
CTaskDialog::OnRadioButtonClick	The framework calls this method when the user selects a radio button control.
CTaskDialog::OnTimer	The framework calls this method when the timer expires.
CTaskDialog::OnVerificationCheckboxClick	The framework calls this method when the user clicks the verification check box.
CTaskDialog::RemoveAllCommandControls	Removes all the command controls from the CTaskDialog.
CTaskDialog::RemoveAllRadioButtons	Removes all the radio buttons from the CTaskDialog.
CTaskDialog::SetCommandControlOptions	Updates a command button control on the CTaskDialog.
CTaskDialog::SetCommonButtonOptions	Updates a subset of common buttons to be enabled and require UAC elevation.
CTaskDialog::SetCommonButtons	Adds common buttons to the CTaskDialog.
CTaskDialog::SetContent	Updates the content of the CTaskDialog.
CTaskDialog::SetDefaultCommandControl	Specifies the default command button control.
CTaskDialog::SetDefaultRadioButton	Specifies the default radio button.
CTaskDialog::SetDialogWidth	Adjusts the width of the CTaskDialog.
CTaskDialog::SetExpansionArea	Updates the expansion area of the CTaskDialog.
CTaskDialog::SetFooterIcon	Updates the footer icon for the CTaskDialog.
CTaskDialog::SetFooterText	Updates the text on the footer of the CTaskDialog.
CTaskDialog::SetMainIcon	Updates the main icon of the CTaskDialog.
CTaskDialog::SetMainInstruction	Updates the main instruction of the CTaskDialog.
CTaskDialog::SetOptions	Configures the options for the CTaskDialog.
CTaskDialog::SetProgressBarMarquee	Configures a marquee bar for the CTaskDialog and adds it to the dialog box.
CTaskDialog::SetProgressBarPosition	Adjusts the position of the progress bar.
CTaskDialog::SetProgressBarRange	Adjusts the range of the progress bar.
CTaskDialog::SetProgressBarState	Sets the state of the progress bar and displays it on the CTaskDialog.
CTaskDialog::SetRadioButtonOptions	Enables or disables a radio button.
CTaskDialog::SetVerificationCheckbox	Sets the checked state of the verification check box.
CTaskDialog::SetVerificationCheckboxText	Sets the text on the right side of the verification check box.
CTaskDialog::SetWindowTitle	Sets the title of the CTaskDialog.
CTaskDialog::ShowDialog	Creates and displays a CTaskDialog.
CTaskDialog::TaskDialogCallback	The framework calls this in response to various Windows messages.

Data Members

m_aButtons	The array of command button controls for the CTaskDialog.
m_aRadioButtons	The array of radio button controls for the CTaskDialog.
m_bVerified	TRUE indicates the verification check box is checked; FALSE indicates it is not.
m_footerIcon	The icon in the footer of the CTaskDialog.
m_hWnd	A handle to the window for the CTaskDialog.
m_mainIcon	The main icon of the CTaskDialog.
m_nButtonDisabled	A mask that indicates which of the common buttons are disabled.
m_nButtonElevation	A mask that indicates which of the common buttons require UAC elevation.
m_nButtonId	The ID of the selected command button control.
m_nCommonButton	A mask that indicates which common buttons are displayed on the CTaskDialog.
m_nDefaultCommandControl	The ID of the command button control that is selected when the CTaskDialog is displayed.
m_nDefaultRadioButton	The ID of the radio button control that is selected when the CTaskDialog is displayed.
m_nFlags	A mask that indicates the options for the CTaskDialog.
m_nProgressPos	The current position for the progress bar. This value must be between m_nProgressRangeMin and m_nProgressRangeMax.
m_nProgressRangeMax	The maximum value for the progress bar.
m_nProgressRangeMin	The minimum value for the progress bar.
m_nProgressState	The state of the progress bar. For more information, see CTaskDialog::SetProgressBarState.
m_nRadioId	The ID of the selected radio button control.
m_nWidth	The width of the CTaskDialog in pixels.
m_strCollapse	The string the CTaskDialog displays to the right of the expansion box when the expanded information is hidden.
m_strContent	The content string of the CTaskDialog.
m_strExpand	The string the CTaskDialog displays to the right of the expansion box when the expanded information is displayed.
m_strFooter	The footer of the CTaskDialog.
m_strInformation	The expanded information for the CTaskDialog.
m_strMainInstruction	The main instruction of the CTaskDialog.
m_strTitle	The title of the CTaskDialog.
m_strVerification	The string that the CTaskDialog displays to the right of the verification check box.

Remarks

The CTaskDialog class replaces the standard Windows message box and has additional functionality such as new controls to gather information from the user. This class is in the MFC library in Visual Studio 2010. The CTaskDialog is available starting with Windows Vista. Earlier versions of Windows cannot display the CTaskDialog object. Use CTaskDialog::IsSupported to determine at runtime whether the current user can display the task dialog box. The standard Windows message box is still supported in Visual Studio 2010.

The CTaskDialog is available only when you build your application by using the Unicode library.

The CTaskDialog has two different constructors. One constructor enables you to specify two command buttons and a maximum of six regular button controls. You can add more command buttons after you create the CTaskDialog. The second constructor does not support any command buttons, but you can add an unlimited number of regular button controls. For more information about the constructors, see CTaskDialog::CTaskDialog.

The following image shows a sample CTaskDialog to illustrate the location of some of the controls.

CTaskDialog Sample

Example of CTaskDialog

Requirements

Minimum required operating system: Windows Vista

Header: afxtaskdialog.h

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CTaskDialog Class

Members

Constructors

Methods

Data Members

Remarks

Requirements

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Reference

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