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This notification message is only sent for a combo box with the CBS_SIMPLE style.

This notification message is not sent for a combo box that has the CBS_SIMPLE style. ON_CBN_CLOSEUP (Windows 3.1 and later.) The list box of a combo box has closed.Potential message-map entries are the following: In particular, a CBN_SELCHANGE notification may occur either before or after a CBN_CLOSEUP notification. The order in which certain notifications will be sent cannot be predicted. The parent’s function prototype is as follows: Where id specifies the child-window ID of the combo-box control sending the notification and memberFxn is the name of the parent member function you have written to handle the notification. If you want to handle Windows notification messages sent by a combo box to its parent (usually a class derived from CDialog), add a message-map entry and message-handler member function to the parent class for each message.Įach message-map entry takes the following form: In both cases, first call the constructor CComboBox to construct the CComboBox object then call the Create member function to create the control and attach it to the CComboBox object. You can create a CComboBox object from either a dialog template or directly in your code. The following table compares the three combo-box styles. In addition, if the combo box has the drop-down list style, the user can type the initial character of one of the items in the list, and the list box, if visible, will highlight the next item with that initial character. The currently selected item (if any) in the list box is displayed in the static or edit control.

The list-box portion of the control may be displayed at all times or may only drop down when the user selects the drop-down arrow next to the control. The CComboBox class provides the functionality of a Windows combo box.Ī combo box consists of a list box combined with either a static control or edit control.