This message is sent by an application to show or hide the list box of a combo box that has the CBS_DROPDOWN or CBS_DROPDOWNLIST style.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
CB_SHOWDROPDOWN wParam = (WPARAM)(BOOL) fShow;
lParam = 0;
Parameters
fShow
Boolean that specifies whether the drop-down list box is to be shown or hidden. A value of TRUE shows the list box; a value of FALSE hides it.
Return Values
The return value is always TRUE.
Remarks
This message has no effect on a combo box created with the CBS_SIMPLE style.
See Also