通过

LB_GETTOPINDEX (Compact 2013)

  • 项目

3/28/2014

This message is sent by an application to retrieve the index of the first visible item in a list box. Initially the item with index zero is at the top of the list box, but if the list box contents have been scrolled another item may be at the top.

Syntax

LB_GETTOPINDEX wParam = 0; 
    lParam = 0;

Parameters

  • wParam
    Not used.
  • lParam
    Not used.

Return Value

The index of the first visible item in the list box indicates success.

Requirements

Header

winuser.h

See Also

Reference

List Box Messages
LB_SETTOPINDEX