关于VB.NET调用VC++的DLL的问题...

[埃和智能]

以下是VC++写的DLL函数原形，要在VB.net中调用这个DLL，应该怎么写声明模块？急呀！

void NET_DVR_ReleaseG722Encoder(void *pEncodeHandle);

LONG NET_DVR_StartVoiceCom_MR(LONG lUserID, void(CALLBACK *fVoiceDataCallBack)(LONG lVoiceComHandle,char *pRecvDataBuffer,DWORD )dwBufSize,BYTE byAudioFlag,DWORD dwUser), DWORD dwUser);

[珍惜生命远离CPP]

    Declare Auto Function NET_DVR_ReleaseG722Encoder Lib "xxx.lib" (<MarshalAs(UnmanagedType.AsAny)> ByVal o As Object)

[珍惜生命远离CPP]

这个不确定正确

    Public Delegate Function VoiceDataCallBackType(ByVal lVoiceComHandle As Integer, _
    <MarshalAs(UnmanagedType.LPStr)> ByVal pRecvDataBuffer As String, _
    ByVal dwBufSize As Integer, ByVal byAudioFlag As Integer, ByVal dwUser As Integer)


    Declare Ansi Function NET_DVR_StartVoiceCom_MR Lib "xxx.lib" ( _
        ByVal lUserID As Integer, ByVal VoiceDataCallBack As VoiceDataCallBackType, _
        ByVal dwUser As Integer) As Integer

[UltraBejing]

接分是王道！