枚举当前打开的所有窗口

BOOL  CAllwindowsDlg::EnumWindowsProc(HWND hWnd, LPARAM lParam)
{
	//be sure the current window is visible
	if(::GetWindowLong(hWnd,GWL_STYLE)& WS_VISIBLE)
	{
 	 m_hwndFind[m_num] = hWnd;//record the HWND handle into array
 	 m_num++;//count start
 	}
	return 1;
}

void CAllwindowsDlg::OnButton3() 
{
	m_num = 0;
	m_list.ResetContent();
	::EnumWindows(CAllwindowsDlg::EnumWindowsProc,NULL);
	for(int i = 0;i <=m_num;i++)
	{
		HWND m_wnd = m_hwndFind[i];
		::GetWindowText(m_wnd,m_store,128);
		::GetClassName(m_wnd,m_strClass,MAX_PATH-1);
		m_winname[i] = m_store;
		sprintf(m_name,"(%d)标题名称：",i);
		strcat(m_name,m_store);
		strcat(m_name,"      类名称：");
		strcat(m_name,m_strClass);
		m_list.AddString(m_name);
	}		
	
}