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35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
#ifndef _M_UDP_
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#define _M_UDP_
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#if _MSC_VER >= 1000
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#pragma once
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#endif // _MSC_VER >= 1000
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// MulticastSocket.h : header file
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typedef void(CALLBACK*MulticastCALLBACK)(unsigned char* buffer, const DWORD size,LPVOID lp);
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#include <afxsock.h>
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class CMUDP : public CAsyncSocket
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{
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public:
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CMUDP();
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virtual ~CMUDP();
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public:
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BOOL InitGroup( CString, UINT, UINT, BOOL );
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BOOL LeaveGroup();
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BOOL SendToY( const void *, int );
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void SetReadCallBack(MulticastCALLBACK fun, LPVOID lp);
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public:
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virtual void OnReceive(int nErrorCode);
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private:
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unsigned char m_strBuffer[32000]; // Receiving buffer for the packet that has arrived
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SOCKADDR_IN m_saHostGroup; // SOCKADDR structure to hold IP/Port of the Host group to send data to it
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ip_mreq m_mrMReq; // Contains IP and interface of the host group
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UINT m_nSendersPort; // Holds Port No. of the socket from which last packet was received
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CString m_strSendersIP; // Hold IP of the socket from which the last packet was received
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MulticastCALLBACK m_fun;
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LPVOID m_param;
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};
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#endif // !defined(AFX_MULTICASTSOCKET_H__269E2C7F_2037_11D3_8EF3_0000C0FD25F8__INCLUDED_)
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