This message is sent by an application to retrieve from a list box the width, in pixels, by which the list box can be scrolled horizontally—the scrollable width—if the list box has a horizontal scroll bar.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
LB_GETHORIZONTALEXTENT wParam = 0; lParam = 0;
Return Values
The scrollable width, in pixels, of the list box indicates success.
Remarks
To respond to the LB_GETHORIZONTALEXTENT message, the list box must have been defined with the WS_HSCROLL style.
See Also