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LB_GETHORIZONTALEXTENT Overview  Group

An application sends an LB_GETHORIZONTALEXTENT message 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.

LB_GETHORIZONTALEXTENT 

wParam = 0; // not used; must be zero 

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

 

Parameters

This message has no parameters.

Return Values

The return value is the scrollable width, in pixels, of the list box.

Remarks

To respond to the LB_GETHORIZONTALEXTENT message, the list box must have been defined with the WS_HSCROLL style.

See Also

LB_SETHORIZONTALEXTENT 


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