CB_GETEXTENDEDUI

An application sends a CB_GETEXTENDEDUI message to determine whether a combo box has the default user interface or the extended user interface.

CB_GETEXTENDEDUI 
wParam = 0;     // not used; must be zero 
lParam = 0;     // not used; must be zero 
 

Parameters

This message has no parameters.

Return Values

If the combo box has the extended user interface, the return value is TRUE; otherwise, it is FALSE.

Remarks

By default, the f4 key opens or closes the list and the down arrow changes the current selection. In a combo box with the extended user interface, the f4 key is disabled and pressing the down arrow key opens the drop-down list.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in winuser.h.

See Also

Combo Boxes Overview, Combo Box Messages, CB_SETEXTENDEDUI