C / C++ / MFC

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

class CMyDialog : public CDialog //or another suitable CWnd derived base class
{
    .....
protected:
    static UINT MyThreadFn( LPVOID pThis ) { return ((CMyDialog*)pThis)->MyThreadFn(); }
    UINT MyThreadFn(); // The thread controlling function
    volatile BOOL m_bStopMyThread;
    CWinThread* m_pMyThread;
    ....
};

#define UWM_MY_MESSAGE (WM_APP + 1)
class CMyClass : public CDialog
{
    ....
    afx_msg LRESULT OnMyMessage( WPARAM wParam, LPARAM lParam );
    ....
};

....
BEGIN_MESSAGE_MAP(CMyClass, CDialog)
    ....
    ON_MESSAGE( UWM_MY_MESSAGE, OnMyMessage )
    ....
END_MESSAGE_MAP()
....
....
LRESULT CMyClass::OnMyMessage( WPARAM wParam, LPARAM lParam )
{
    // Do whatever you need to do here
    return 0;
}

UINT CMyClass::MyThreadFn()
{
    WORD wLength; // The length of the received data
    BYTE* pData;  // Pointer to the received data
    ....
    while( !m_bStopMyThread )
    {
        ....
        pData = new BYTE[wLength];
        // Here should be some code that copies the data to pData e.g. memcpy( pByte, ...., wLength )
        PostMessage( UWM_MY_MESSAGE, (WPARAM)wLength, (LPARAM)pByte );
        ....
    }
    ....
}

LRESULT CMyClass::OnMyMessage( WPARAM wParam, LPARAM lParam )
{
    WORD wLength = (WORD)wParam;
    BYTE* pData = (BYTE*)lParam;
    // Do whatever you need to do with your data, update controls and so on
    ....
    delete pData;
    return 0;
}

#define UWM_GOT_DATA (WM_APP + 1)