SAPI 包含sphelper.h编译错误解决方案

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发现编写一个小小的程序，错误倒是不少啊，有些东西保存下来，以后方便自己和别人用了！

在使用Microsoft Speech SDK 5.1开发语音识别程序时，包含了头文件“sphelper.h”和库文件“sapi.lib”。编译时出错：

1>c:/program files/microsoft speech sdk 5.1/include/sphelper.h(769) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

1>c:/program files/microsoft speech sdk 5.1/include/sphelper.h(1419) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:/program files/microsoft speech sdk 5.1/include/sphelper.h(2373) : error C2065: 'psz' : undeclared identifier

1>c:/program files/microsoft speech sdk 5.1/include/sphelper.h(2559) : error C2440: 'initializing' : cannot convert from 'CSpDynamicString' to 'SPPHONEID *'
1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
1>c:/program files/microsoft speech sdk 5.1/include/sphelper.h(2633) : error C2664: 'wcslen' : cannot convert parameter 1 from 'SPPHONEID *' to 'const wchar_t *'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

搜索了一圈，根据大家的经验汇总，应该是Speech代码编写时间太早，语法不严密。而VS2005对于语法检查非常严格，导致编译无法通过。修改头文件中的以下行即可正常编译：

Ln 769

const ulLenVendorPreferred = wcslen(pszVendorPreferred);
const unsigned long ulLenVendorPreferred = wcslen(pszVendorPreferred);

Ln 1418

static CoMemCopyWFEX(const WAVEFORMATEX * pSrc, WAVEFORMATEX ** ppCoMemWFEX)

static HRESULT CoMemCopyWFEX(const WAVEFORMATEX * pSrc, WAVEFORMATEX ** ppCoMemWFEX)

Ln 2372

for (const WCHAR * psz = (const WCHAR *)lParam; *psz; psz++) {}

const WCHAR * psz; for (psz = (const WCHAR *)lParam; *psz; psz++) {}

Ln 2559

SPPHONEID* pphoneId = dsPhoneId;

SPPHONEID* pphoneId = (SPPHONEID*)((WCHAR *)dsPhoneId);

Ln 2633
pphoneId += wcslen(pphoneId) + 1;
pphoneId += wcslen((const wchar_t *)pphoneId) + 1;

好了，编译通过，下面可以正式编写程序逻辑了。

VS2008/VS2005 SAPI 开发环境设置

Microsft的SDK上面有一些简单的例子用来说明如何开发语音识别程序。目前大部分人所用的开发环境应该是VS2005或VS2008。在SAPI 的SDK中对于VC6的配置有一些说明。但是在VS2005/VS2008稍微有些不同，假设SDK安装目录在C:/Program Files/Microsoft Speech SDK 5.1。设置如下：

打开VS2005/VS2008，打开Tools->Options->Projects and Solutions->VC++ Directories：

1. 选择“Include files”，添加Include路径：c:/Program Files/Microsoft Speech SDK 5.1/Include

2. 选择“Library files”，添加Lib路径：c:/Program Files/Microsoft Speech SDK 5.1/Lib/i386

这样就OK了

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