如何重定向stdout到输出窗口从visual studio [英] How to redirect stdout to output window from visual studio

问题描述

是否可以从Visual Studio将stdout重定向到输出窗口？我在我的程序OutputDebugString中使用，但我使用一些库输出具有printf或cout的调试消息。

Is it possible to redirect stdout to output window from Visual Studio? I use in my program OutputDebugString but I use some libraries that have output debug messages with printf's or cout's.

推荐答案

简单的stdout重定向不工作，因为没有句柄对应于OutputDebugString。但是，应该有一种方法：

Straightforward stdout redirection will not work, as there is no handle corresponding to OutputDebugString. However, there should be a way:

这可以通过将stdout重定向到管道，然后创建一个线程来读取管道并打印从它读取的任何东西使用OutputDebugString。

It could be done by redirecting the stdout to a pipe, then creating a thread which would read the pipe and print anything read from it using OutputDebugString.

注意：我在考虑很久以前实现这一点，因为我面对完全相同的问题，你做的（一些库使用printf或fprintf stderr ....），但是我从来没有真正这样做，我总是结束修改库，因此我没有一个工作的实现，但我认为这应该是可行的原则。

Note: I was contemplating for a long ago to implement this, as I am facing exactly the same problem as you do (some libraries using printf or fprintf(stderr....), however I never really did this, I have always ended modifying the libraries instead, therefore I do not have a working implementation, but I think it should be feasible in principle.

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