Processing Notification Messages in Extended Combo Box Controls

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As users interact with the extended combo box, the control (CComboBoxEx) sends notification messages to its parent window, usually a view or dialog object. Handle these messages if you want to do something in response. For example, when the user activates the drop-down list or clicks in the control's edit box, the CBEN_BEGINEDIT notification is sent.

Use WizardBar or ClassWizard to add notification handlers to the parent class for those messages you want to implement.

The following list describes the various notifications sent by the extended combo box control.

See Also   Windows Common Controls and MFC Classes