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.
LB_SETHORIZONTALEXTENT wParam = (WPARAM) cxExtent; lParam = 0;
- Specifies the number of pixels by which the list box can be scrolled.
- Not used.
To respond to the LB_SETHORIZONTALEXTENT message, the list box must have been defined with the WS_HSCROLL style.
OS Versions: Windows CE 1.0 and later.
Last updated on Wednesday, April 13, 2005
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