Overview
Group
Quick Info

Windows NT
Yes
Win95
Yes
Win32s
No
Import Library
-
Header File
winuser.h
Unicode
No
Platform Notes
None

CB_SETHORIZONTALEXTENT

An application sends the CB_SETHORIZONTALEXTENT message 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.

CB_SETHORIZONTALEXTENT

wParam = (WPARAM) cxExtent; // scrollable width of list box, in pixels

lParam = 0; // not used, must be zero

Parameters

cxExtent

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

Return Values

No return value.

See Also

CB_GETHORIZONTALEXTENT

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