关于C ++ MFC CButton异步 [英] About C++ MFC CButton Asynchronous

问题描述

亲爱的，



我对使用MFC编程的C ++非常陌生。

我正在做一个学校项目，即建立a。使用C ++和MFC的.WAV播放器。我必须使用较低级别的API但不能简单地调用PlaySound（_T（filename.wav），NULL，SND_FILENAME | SND_ASYNC）;播放.WAV文件。



播放功能已经实现，但是，我不知道如何实现停止功能，如当我按下播放按钮（触发播放功能）时，播放功能会锁定所有其他按钮，我无法按停止按钮停止音乐播放。



有没有提示我实现这样的停止功能？它是与异步，多线程或其他相关的东西吗？



感谢任何有价值的回复。

解决方案

与 http://www.cplusplus.com/forum/windows/96349/一样 [ ^ ]已经说过，你需要发布一些代码 - 这是一个标志为SND_ASYNC的PlaySound非常不寻常的行为！



无论如何你不需要任何新的线程，你可以通过以下方式停止声音：

 PlaySound（NULL， 0 ， 0 ）; 

Dear all,

I am very new to C++ with MFC Programming.
I am doing a school project which is to build a .WAV player using C++ with MFC. I must use the lower level API BUT CANNOT simply a call to "PlaySound(_T("filename.wav"), NULL, SND_FILENAME | SND_ASYNC);" to play the .WAV file.

The "play" function is already implemented, however, I don''t konw how to implement the "stop" function, as when I press the "play" button (which trigger the "play" function), the "play" function LOCKs all other buttons, I cannot press the "stop" button to stop the music playing.

Are there any hints for me to implement such a "stop" function? Is it something related to "asynchronous", "multi-threading" or something else?

THANKS IN ADVANCE for any valuable reply.

解决方案

As in http://www.cplusplus.com/forum/windows/96349/[^] already said, you need to post some code - it is very unusual behavior of a PlaySound with flag SND_ASYNC !

Anyway you don''t need any new thread and you can stop sound with:

PlaySound(NULL, 0, 0);

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