www.pudn.com > 45365885686.rar > SockSupport.cpp

// SockSupport.cpp: implementation of the CSockSupport class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "SockSupport.h" 
 
#ifdef _DEBUG 
#undef THIS_FILE 
static char THIS_FILE[]=__FILE__; 
#define new DEBUG_NEW 
#endif 
 
////////////////////////////////////////////////////////////////////// 
// Construction/Destruction 
////////////////////////////////////////////////////////////////////// 
CSockSupport::CSockSupport(bool bAuto) 
{ 
	m_bSupported = FALSE; 
 
	if(bAuto) 
		Init(); 
} 
 
CSockSupport::~CSockSupport() 
{ 
	if(m_bSupported) 
		Uninit(); 
} 
 
int CSockSupport::Init(WORD wVersion /* = DEFAULT_VERSION */) 
{ 
	WSADATA wsaData; 
	if (WSAStartup(wVersion, &wsaData) != 0) 
	{ 
		return WSAGetLastError(); 
	} 
 
	//Confirm that the WinSock DLL supports 2.0 
	if(LOBYTE(wsaData.wVersion)!=LOBYTE(wVersion) || 
		HIBYTE(wsaData.wVersion)!=HIBYTE(wVersion) ) 
	{ 
		WSACleanup(); 
		return WSAGetLastError(); 
	} 
 
	m_bSupported = TRUE; 
	return 0; 
} 
 
int CSockSupport::Uninit() 
{ 
	WSACleanup(); 
	return 0; 
} 
 
BOOL CSockSupport::IsSupported() 
{ 
	return m_bSupported; 
}