特爱蚂蚁
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发表于:2008-6-11 15:59
找到了一个传输图片的
Introduction
The original article proposed to demonstrate elementary network programming by designing a very simple TCP client/server and a simple image viewer. The client select an image file it will send to the server. The server will save and show the image file.
The Client Mainly Code
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SOCKET_STREAM_FILE_INFO StreamFileInfo;
WIN32_FIND_DATA FindFileData;
FindClose( FindFirstFile( strFileName, &FindFileData ) );
memset( &StreamFileInfo, 0, sizeof(SOCKET_STREAM_FILE_INFO) );
strcpy( StreamFileInfo.szFileTitle, myFile.GetFileTitle() );
StreamFileInfo.dwFileAttributes = FindFileData.dwFileAttributes;
StreamFileInfo.ftCreationTime = FindFileData.ftCreationTime;
StreamFileInfo.ftLastAccessTime = FindFileData.ftLastAccessTime;
StreamFileInfo.ftLastWriteTime = FindFileData.ftLastWriteTime;
StreamFileInfo.nFileSizeHigh = FindFileData.nFileSizeHigh;
StreamFileInfo.nFileSizeLow = FindFileData.nFileSizeLow;
GetDlgItem( IDC_IPADDRESS1 )->GetWindowText( strIpAddress );
//////////////////////////////////////////////////////////////////////////
SOCKET server;
WSADATA wsaData;
int wsaret = WSAStartup( MAKEWORD(2,2), &wsaData );
if( wsaret != 0 )
{
return;
}
sockaddr_in local;
local.sin_family = AF_INET; //Address family
local.sin_addr.s_addr = inet_addr( strIpAddress ); //Wild card IP address
local.sin_port = htons((u_short)8888); //port to use
server = socket( AF_INET, SOCK_STREAM, 0 );
if( server == INVALID_SOCKET )
{
return;
}
connect( server,(struct sockaddr *)&local, sizeof(local));
send( server, (char *)&StreamFileInfo,sizeof(SOCKET_STREAM_FILE_INFO), 0 );
Sleep( 10 );
UINT dwRead=0;
char temp[1024];
while( dwRead < StreamFileInfo.nFileSizeLow )
{
memset( temp, 0, 1024 );
UINT dw = myFile.Read( temp, 1024 );
send( server, temp, dw, 0 );
dwRead += dw;
Sleep( 10 );
}
myFile.Close();
closesocket(server);
WSACleanup();
The Server Mainly Code
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SOCKET server;
WSADATA wsaData;
int wsaret = WSAStartup( MAKEWORD(2,2), &wsaData );
if( wsaret != 0 )
{
return 0;
}
sockaddr_in local;
local.sin_family = AF_INET; //Address family
local.sin_addr.s_addr = INADDR_ANY; //Wild card IP address
local.sin_port = htons((u_short)8888); //port to use
server = socket( AF_INET, SOCK_STREAM, 0 );
if( server == INVALID_SOCKET )
{
return 0;
}
if( bind( server, (sockaddr*)&local, sizeof(local) ) != 0 )
{
return 0;
}
if( listen( server, 10 ) != 0 )
{
return 0;
}
SOCKET_STREAM_FILE_INFO StreamFileInfo;
memset( &StreamFileInfo, 0, sizeof(SOCKET_STREAM_FILE_INFO) );
SOCKET client;
sockaddr_in from;
int fromlen = sizeof( from );
while( pThis->m_bListen )
{
char temp[1024];
memset( temp, 0, 1024 );
client = accept( server, (struct sockaddr*)&from, &fromlen );
int iLen = recv( client, temp, sizeof(SOCKET_STREAM_FILE_INFO), 0 );
if( iLen == sizeof(StreamFileInfo) )
{
memcpy( &StreamFileInfo, temp, sizeof(StreamFileInfo) );
CFile destFile( StreamFileInfo.szFileTitle,
CFile::modeCreate | CFile::modeWrite | CFile::typeBinary);
UINT dwRead = 0;
while( dwRead < StreamFileInfo.nFileSizeLow )
{
memset(temp,0,1024);
UINT dw = recv( client, temp, 1024, 0 );
destFile.Write(temp, dw);
dwRead += dw;
}
SetFileTime( (HANDLE)destFile.m_hFile,
&StreamFileInfo.ftCreationTime, &StreamFileInfo.ftLastAccessTime,
&StreamFileInfo.ftLastWriteTime );
destFile.Close();
SetFileAttributes(StreamFileInfo.szFileTitle,
StreamFileInfo.dwFileAttributes);
pThis->LoadPicture( StreamFileInfo.szFileTitle );
}
closesocket(client);
}
closesocket(server);
WSACleanup();
Load Image File
CFile file( strPictureName, CFile::modeRead );
if (file.GetLength() == 0)
{
return;
}
CArchive loadArchive( &file, CArchive::load | CArchive::bNoFlushOnDelete);
loadArchive.m_bForceFlat = FALSE;
CArchiveStream arcstream(&loadArchive);
m_spIPicture.Release();
HRESULT hr = OleLoadPicture( &arcstream, 0, FALSE, IID_IPicture,
(void**)&m_spIPicture);
loadArchive.Close();
file.Close();
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