包含dshow.h导致定义错误 [英] Inclusion of dshow.h results in definition errors

问题描述

我正在尝试使用DirectShow进行音频播放。我有一个头文件，在顶部是：

I am trying to do a few things using DirectShow for audio playback. I have a header file, at the top is:

#pragma once
#include <dshow.h>
#pragma comment(lib, "strmiids.lib")

定义一个类。
当包括dshow.h时，我得到以下编译错误：

and then it goes on to define a class. When including dshow.h I get the following complilation errors:

C：\Program Files \Microsoft SDKs \\ Windows\v7.0\include\ddraw.h（703）：错误C2011：'_DDPIXELFORMAT'：'struct'type redefinition

C:\Program Files\Microsoft SDKs\Windows\v7.0\include\ddraw.h(703) : error C2011: '_DDPIXELFORMAT' : 'struct' type redefinition

c：\program files\microsoft sdks\windows\v7.0\include\ksmedia.h（5749）：请参阅_DDPIXELFORMAT声明

c:\program files\microsoft sdks\windows\v7.0\include\ksmedia.h(5749) : see declaration of '_DDPIXELFORMAT'

C：\ Program Files \Microsoft SDKs\Windows\v7.0\\\\\\\\\\\\\\\\\\\\\\\\\\ddraw.h(2249):错误C2079：'_DDSURFACEDESC :: ddpfPixelFormat'使用未定义的struct'_DDPIXELFORMAT'

C:\Program Files\Microsoft SDKs\Windows\v7.0\include\ddraw.h(2249) : error C2079: '_DDSURFACEDESC::ddpfPixelFormat' uses undefined struct '_DDPIXELFORMAT'

C：\Program Files \Microsoft SDKs\Windows \v7.0\\\\\\\\\\\\\\\(d64.h,2292):错误C2079：'_DDSURFACEDESC2 :: ddpfPixelFormat'使用未定义的struct'_DDPIXELFORMAT '

C:\Program Files\Microsoft SDKs\Windows\v7.0\include\ddraw.h(2292) : error C2079: '_DDSURFACEDESC2::ddpfPixelFormat' uses undefined struct '_DDPIXELFORMAT'

C：\Program Files \Microsoft SDKs\Windows \v7.0\include\strmif.h（12918）：错误C2011： tagTIMECODE_SAMPLE'：'struct'type redefinition

C:\Program Files\Microsoft SDKs\Windows\v7.0\include\strmif.h(12918) : error C2011: 'tagTIMECODE_SAMPLE' : 'struct' type redefinition

c：\program files\microsoft sdks\windows\v7.0\\\\\ 5274）：参见'tagTIMECODE_SAMPLE'的声明

c:\program files\microsoft sdks\windows\v7.0\include\ksmedia.h(5274) : see declaration of 'tagTIMECODE_SAMPLE'

我无法确定在这种情况下会导致这些错误。如果这有什么区别，头文件是MFC项目的一部分。任何建议？

I can't figure out what would cause these errors in this case. The header file is part of an MFC project if that makes any difference. Any advice?

推荐答案

通过更改#include定义的顺序来修复此问题。我把上面的代码定义的头文件移动到顶部，它现在工作确定。必须是与另一个文件中的一些代码冲突，可能是一些directSound相关的东西。

Fixed this by changing the order of the #include definitions. I moved the header file that the above code was defined in to the top and it works ok now. Must have been a clash with some code in another file, possibly some directSound related stuff.

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