Last modified: July 23, 2011

Applies to: Outlook

Creates a named structure that includes a DTBLCOMBOBOX structure for describing a combo box control and the maximum number of characters that can be entered in the associated edit control.

Header file:


Related structure:


SizedDtblComboBox (n, u)


Number of characters that can be entered in the combo box's edit control.


Name for the new structure.

The SizedDtblComboBox macro lets you define a combo box when the length of the enabled character string is known. The new structure is created with the following members:

DTBLCOMBOBOX dtblcombobox;
TCHAR lpszCharsAllowed[n];

To use a pointer to the resulting structure from the SizedDtblComboBox macro as a DTBLCOMBOBOX structure pointer, perform the following cast:

lpDtblComboBox = (LPDTBLCOMBOBOX) &SizedDtblComboBox;