C / C++ / MFC

int iBufferLength;
    int iEnd;
    int iSpaceRemaining;
     
    int i;
 
    iBufferLength = iSpaceRemaining = sizeof(chIncomingDataBuffer);
    iEnd = 0;
    iSpaceRemaining -= iEnd;
 
    iBytesRead = recv(Socket, chIncomingDataBuffer+iEnd, iSpaceRemaining, 0);
     
    iEnd+=iBytesRead;
    if (iBytesRead == SOCKET_ERROR)
        MessageBox(hWnd,
                        "Socket Error",
                        "Connection strt",
                        MB_ICONINFORMATION|MB_OK);
        chIncomingDataBuffer[iEnd] = '\0';
 
    if (lstrlen(chIncomingDataBuffer) != 0)
    {
        /*FILE* pfile;
                     
                    pfile =     fopen("test.jpeg", "wb");
                fwrite(chIncomingDataBuffer,1, iBytesRead ,pfile);
                fclose(pfile);*/
 
                GetWindowRect(hWnd, &rect);
                SetWindowPos(hWnd, NULL, rect.left, rect.top, cBitmap.bmWidth, cBitmap.bmHeight, 0);
                  HDC ThisDC = GetDC(hWnd);
 
              DeleteDC(RemoteDC);
              RemoteDC = CreateCompatibleDC(ThisDC);
              DeleteObject(hbitmap);
              hbitmap= CreateCompatibleBitmap(ThisDC, cBitmap.bmWidth, cBitmap.bmHeight);
 
              SelectObject(RemoteDC, hbitmap);
 
              ReleaseDC(hWnd, ThisDC);
 
 
 
              BITMAPINFO bi;
              HBITMAP hbmap;
              int bisize = sizeof(BITMAPINFO);
              memcpy(&bi, chIncomingDataBuffer+iEnd, bisize );
              SetDIBits(RemoteDC, hbitmap, 0,  cBitmap.bmHeight, chIncomingDataBuffer+iEnd+bisize,  &bi, DIB_RGB_COLORS);
 
 
              InvalidateRect(hWnd, NULL, false);