英语翻译Includes a question mark in the title bar of the window.

英语翻译
Includes a question mark in the title bar of the window.When the user clicks the question mark,the cursor changes to a question mark with a pointer.If the user then clicks a child window,the child receives a WM_HELP message.The child window should pass the message to the parent window procedure,which should call the function using the HELP_WM_HELP command.The Help application displays a pop-up window that typically contains help for the child window.
WS_EX_CONTEXTHELP cannot be used with the WS_MAXIMIZEBOX or WS_MINIMIZEBOX styles.
包含一个问号的小标题在窗口.当用户点击问号符号,这个光标变成一个问号的指示器.如果,用户点击子窗口,那么这个父窗口程序,应该调用函数使用HELP_WM_HELP 命令,这个帮助程序显示一个下来菜单窗口代表包含这个子窗口.WS_EX_CONTEXTHELP 不能一起使用WS_MAXIMIZEBOX or WS_MINIMIZEBOX 风格.