Question

我正在尝试将类内部的回调函数绑定到Functionpointer，但是我似乎无法使其正常工作。我正在使用第三方API，因此我无法更改其期望功能的方式。一切正常，直到我尝试将代码抽象为类结构为止。

// API header

typedef DWORD (__stdcall *PHIDDataEvent)(UCHAR *pData, DWORD deviceID, DWORD   error);
extern "C" DWORD __stdcall SetDataCallback(long hnd, PHIDDataEvent   pDataEvent);


// myclass.h

class Devices
{
public:
    Devices(DWORD ID);
    ~Devices();

private:
    DWORD __stdcall HandleDataEvent(UCHAR *pData, DWORD deviceID, DWORD error);
    void CreateCallback();

    DWORD deviceID;
};

//myclass.cpp

#include "myclass.h"
#include "APIHeader.h"

Devices::Devices()
{
    CreateCallback();
}

DWORD __stdcall Devices::HandleDataEvent(UCHAR *pData, DWORD deviceID, DWORD error)
{
    //callback code is in here
}

void Devices::CreateCallback()
{
    int result;
    result = SetDataCallback(deviceID,this->HandleDataEvent);
    /*intellisense is not complaining, compiler trhows error C3867: 'Devices::HandleDataEvent':
   non-standard syntax; use '&' to create a pointer to member */
}

我如何使功能指针起作用？亲切的问候 pccrash

Class中的Functionpointer提供“非标准语法；使用“＆”创建指向成员的指针”错误

0 个答案: