我如何检查是否单击了按钮? [英] How do i check if a button is clicked?

问题描述

我有一个CListCtrl，其中使用while循环将项目不断添加到列表中.现在我想停止在用户单击按钮时将项目添加到列表中.现在我希望使用if语句检查是否单击了按钮.在while循环中应使用哪种语句来检查是否单击了按钮?

I have a CListCtrl in which im continously adding items to the list using a while loop. Now i want to stop adding items to the list when the user clicks on a button.now i want a if statement to check if a button is clicked.what statement should i use in the while loop to check if a the button is clicked?

推荐答案

创建成员变量bool值以检查是否被单击.

单击后将其设为true.

现在，添加消息ON_BN_CLICKED并在该映射函数内部，将hte bool值的状态更改为true.

Create a member variable bool value to check whether it is clicked.

When it is clicked then make it as true.

Now add the message ON_BN_CLICKED and inside that mapped function, change the status of hte bool value as true.

连续添加-但是如何添加?

您是否在同一线程中使用循环?如果是，则无法轻松处理Stop事件.由于消息泵将没有时间来处理用户的操作，因此不会引发该事件.您要么需要在循环内调用PeekMessage ，要么使您的程序成为多线程.


阅读本文:
《多线程实用指南-第1部分》 [

Adding continously - but how?

Are you using a loop in the same thread? If yes, you cannot handle the Stop event that easily. The event would not be raised, since message-pump will not get time to process the user''s action. You either need to call PeekMessage within the loop, or make your program multithreaded.


Read this article:
The Practical Guide to Multithreading - Part 1[^]

将调用过程放入看起来像按钮，如果按下则中断.

put a call procedure into the loop that looks to the button, and if pressed breaks.

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