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4/8/2010

This message is sent by an application to set the width, in pixels, by which a list box can be scrolled horizontally (the scrollable width). If the width of the list box is smaller than this value, the horizontal scroll bar horizontally scrolls items in the list box. If the width of the list box is equal to or greater than this value, the horizontal scroll bar is hidden or, if the combo box has the CBS_DISABLENOSCROLL style, disabled.

Syntax 

CB_SETHORIZONTALEXTENT 
wParam = (WPARAM) 
cxExtent; 
  lParam = 0;

Parameters

cxExtent

Specifies the scrollable width of the list box, in pixels.

lParam

Not used.

Return Value

None.

Requirements

Header winuser.h
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also