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Form::HelpButtonClicked Event

.NET Framework (current version)
 

Occurs when the Help button is clicked.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

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public:
[BrowsableAttribute(true)]
event CancelEventHandler^ HelpButtonClicked {
	void add(CancelEventHandler^ value);
	void remove(CancelEventHandler^ value);
}

The HelpButtonClicked event occurs when the Help button in the form's caption bar is clicked. The Help button is displayed when the HelpButton property is set to true. HelpButtonClicked can be canceled.

For more information about handling events, see Handling and Raising Events.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the HelpButtonClicked event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox::Show with Console::WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type Form named Form1. Then ensure that the event handler is associated with the HelpButtonClicked event.

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No code example is currently available or this language may not be supported.

.NET Framework
Available since 2.0
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