CWnd::DlgDirSelectComboBox
Visual Studio 2010
Retrieves the current selection from the list box of a combo box.
BOOL DlgDirSelectComboBox( LPTSTR lpString, int nIDComboBox );
It assumes that the list box has been filled by the DlgDirListComboBox member function and that the selection is a drive letter, a file, or a directory name.
The DlgDirSelectComboBox member function copies the selection to the specified buffer. If there is no selection, the contents of the buffer are not changed.
DlgDirSelectComboBox sends CB_GETCURSEL and CB_GETLBTEXT messages to the combo box.
It does not allow more than one filename to be returned from a combo box.