您当前的位置: 背景：我要把一个非托管的vc库用vc.net包装以供C#中调用。
非托管dll中类：
- C/C++ code
class LANE_SPEECH_DLL CSR
{
public:
void GetRecoWordA ( char * pchRecoWord );
void GetRecoWordW ( wchar_t * pwchRecoWord );
bool StartReco();
CSR();
bool Create( const DWORD dwLanguage = SP_CHINESE,
const bool bInproc = true );
bool LoadCrammarFile ( const WCHAR * pwchFilename );
bool SetInputFromWav ( const WCHAR * pwchFileName, const SPSTREAMFORMAT FileFormat );
void ProcessReco( const DWORD dwMilliseconds = 5000 );
bool IsRecoSuccess() const;
bool IsRecoEnd() const;
virtual ~CSR();
}
其中LANE_SPEECH_DLL 的定义为：
- C/C++ code
#ifdef USE_SPEECH_DLL
#ifdef LANE_SPEECH_EXPORTS
#define LANE_SPEECH_DLL __declspec(dllexport)
#else
#define LANE_SPEECH_DLL __declspec(dllimport)
#endif
#else
#define LANE_SPEECH_DLL
包装类：
头文件中：
- C/C++ code
public ref class ManagedCSR
{
public:
ManagedCSR();
String^ GetRecoWord();
bool StartReco();
bool Create(int language ,bool bInproc);
bool Create();
bool SetInputFromWav(String^ fileName,const SPSTREAMFORMAT FileFormat);
bool LoadGrammarFile(String^ fileName);
void ProcessReco(int dwMilliseconds);
bool IsRecoSuccess();
bool IsRecoEnd();
~ManagedCSR();
const static int SP_CHINESE = 0x0000; //简体中文.
const static int SP_ENGLISH = 0x0001; //英语.
private:
CSR* csr;
};
cpp中：
- C/C++ code
ManagedCSR::ManagedCSR():csr(new CSR())
{
}
String^ ManagedCSR::GetRecoWord()
{
wchar_t *recWord = new wchar_t;
csr->GetRecoWordW(recWord);
String^ word = Marshal::PtrToStringUni(static_cast<IntPtr>(recWord));
delete [] recWord;
recWord = NULL;
return word;
}
bool ManagedCSR::StartReco()
{
return csr->StartReco();
}
bool ManagedCSR::Create(const int language,bool bInproc)
{
return csr->Create(language,bInproc);
}
bool ManagedCSR::Create()
{
return csr->Create(ManagedCSR::SP_CHINESE,true);
}
bool ManagedCSR::SetInputFromWav(String^ fileName, const SPSTREAMFORMAT FileFormat)
{
IntPtr pString = Marshal::StringToHGlobalUni(fileName);
try
{
wchar_t* wcFileName = static_cast<wchar_t *>(pString.ToPointer());
return csr->SetInputFromWav(wcFileName,FileFormat);
}
finally
{
Marshal::FreeHGlobal(pString);
}
}
bool ManagedCSR::LoadGrammarFile(String^ fileName)
{
IntPtr pString = Marshal::StringToHGlobalUni(fileName);
try
{
wchar_t* wcFileName = static_cast<wchar_t *>(pString.ToPointer());
return csr->LoadCrammarFile(wcFileName);
}
finally
{
Marshal::FreeHGlobal(pString);
}
}
void ManagedCSR::ProcessReco( const int dwMilliseconds)
{
csr->ProcessReco(dwMilliseconds);
}
bool ManagedCSR::IsRecoSuccess()
{
return csr->IsRecoSuccess();
}
bool ManagedCSR::IsRecoEnd()
{
return csr->IsRecoEnd();
}
ManagedCSR::~ManagedCSR()
{
delete csr;
}