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.
See Also