学步园

 //模拟鼠标点击事件
 ::SendMessage( m_hWnd, WM_COMMAND, MAKEWPARAM(IDC_LIST1, LBN_SELCHANGE), (LPARAM) m_RuleNameList.m_hWnd);

m_hWnd为ListBox控件的父窗口句柄

IDC_LIST1为ListBox控件的ID

m_RuleNameList.m_hWnd为ListBox的句柄