The CBN_SELENDCANCEL notification message is sent when the user selects an item, but then selects another control or closes the dialog box. It indicates the user's initial selection is to be ignored. The parent window of the combo box receives this notification message through the WM_COMMAND message.
CBN_SELENDCANCEL
idComboBox = (int) LOWORD(wParam); // identifier of combo box
hwndComboBox = (HWND) lParam; // handle of combo box
Remarks
In a combo box with the CBS_SIMPLE style, the CBN_SELENDCANCEL notification message is not sent. The CBN_SELENDOK notification message is sent immediately before every CBN_SELCHANGE notification message.
If the WS_EX_NOPARENTNOTIFY extended window style is specified for the combo box, the CBN_SELENDCANCEL notification message is not sent.
See Also