网络编程|C++网页请求、窗口截取、日志运用、系统时间、C++转BYTE 网络编程|C++

1、请求网页信息 1.1、C++(MFC)

Cstring Get_Http_Date() { CWinApp app((LPCTSTR)"123"); app.InitApplication(); AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0); CString m_URL = IP + "type=35&action=" + action + "&sn=" + sn + "&station=" + station +"&uid=23428&pwd=123&nopwd=1&ToolName=AutoPacking&IP=172.20.1.53"; CInternetSession session; CHttpFile *httpFile = (CHttpFile*)session.OpenURL(m_URL); DWORD dwStatusCode; httpFile->QueryInfoStatusCode(dwStatusCode); CString getdata = https://www.it610.com/article/_T(""); if (dwStatusCode == HTTP_STATUS_OK) { CString line_data = https://www.it610.com/article/_T(""); while (httpFile->ReadString(line_data)) { getdata += line_data; } getdata.TrimRight(); } httpFile->Close(); session.Close(); return getdata; }

1.2、 Qt获取网页信息

QString TestUi::Get_Mes_Data(string action,string code) { char url_c[512]; memset(url_c, 0, 512); sprintf(url_c, "http://172.20.1.21/MD4API/api.ashx?type=35&action=%s&sn=%s&station=Cam_Tese&uid=23428&pwd=123&nopwd=1&ToolName=AutoPacking&IP=172.20.1.53", action.c_str(), SN.c_str()); //设置IP地址 QUrl url(url_c); //储存网页代码的文件 const QString FILE_NAME = "code.html"; QEventLoop loop; m_Reply = m_NetManger->get(QNetworkRequest(url)); //请求结束并下载完成后，退出子事件循环 QObject::connect(m_Reply, SIGNAL(finished()), &loop, SLOT(quit())); //开启子事件循环 loop.exec(); //获取源码，打开文件 QFile file(FILE_NAME); if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) { qDebug() << "Cannot open the file: " << FILE_NAME; return ""; } QTextStream out(&file); QString codeContent = m_Reply->readAll(); //读取网页消息 return codeContent; }

2、截取窗口某个软件界面，并且获取软件界面坐标

#include #include #include #include using namespace std; void ShootScreen(const char* filename, HWND hWnd) { HDC hdc = CreateDC("DISPLAY", NULL, NULL, NULL); int32_t ScrWidth = 0, ScrHeight = 0; RECT rect = { 0 }; if (hWnd == NULL) { ScrWidth = GetDeviceCaps(hdc, HORZRES); ScrHeight = GetDeviceCaps(hdc, VERTRES); } else { GetWindowRect(hWnd, &rect); ScrWidth = rect.right - rect.left; ScrHeight = rect.bottom - rect.top; } HDC hmdc = CreateCompatibleDC(hdc); HBITMAP hBmpScreen = CreateCompatibleBitmap(hdc, ScrWidth, ScrHeight); HBITMAP holdbmp = (HBITMAP)SelectObject(hmdc, hBmpScreen); BITMAP bm; GetObject(hBmpScreen, sizeof(bm), &bm); BITMAPINFOHEADER bi = { 0 }; bi.biSize = sizeof(BITMAPINFOHEADER); bi.biWidth = bm.bmWidth; bi.biHeight = bm.bmHeight; bi.biPlanes = bm.bmPlanes; bi.biBitCount = bm.bmBitsPixel; bi.biCompression = BI_RGB; bi.biSizeImage = bm.bmHeight * bm.bmWidthBytes; // 图片的像素数据 char *buf = new char[bi.biSizeImage]; BitBlt(hmdc, 0, 0, ScrWidth, ScrHeight, hdc, rect.left, rect.top, SRCCOPY); GetDIBits(hmdc, hBmpScreen, 0L, (DWORD)ScrHeight, buf, (LPBITMAPINFO)&bi, (DWORD)DIB_RGB_COLORS); BITMAPFILEHEADER bfh = { 0 }; bfh.bfType = ((WORD)('M' << 8) | 'B'); bfh.bfSize = sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+bi.biSizeImage; bfh.bfOffBits = sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER); HANDLE hFile = CreateFile(filename, GENERIC_WRITE, 0, 0, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); DWORD dwWrite; WriteFile(hFile, &bfh, sizeof(BITMAPFILEHEADER), &dwWrite, NULL); WriteFile(hFile, &bi, sizeof(BITMAPINFOHEADER), &dwWrite, NULL); WriteFile(hFile, buf, bi.biSizeImage, &dwWrite, NULL); CloseHandle(hFile); hBmpScreen = (HBITMAP)SelectObject(hmdc, holdbmp); }int32_t main() { HWND hwnd = FindWindow(0, "Kazam"); RECT rect; GetWindowRect(hwnd, &rect); cout << "左上角坐标:" << rect.left << " " << rect.top << endl << "右下角坐标" << rect.right << " " << rect.bottom << endl; //HWND hWnd = AfxGetMainWnd()->m_hWnd; char name[256] = { 0 }; //for (int32_t i = 0; i < 20; ++i) //{ sprintf_s(name, 256, "%d.bmp", 1); printf("shooting %s\n", name); ShootScreen(name, NULL); //Sleep(1000); 4721481482787 //} return 0; }

3、设置鼠标窗口某个位置完成双击

POINT p; GetCursorPos(&p); SetCursorPos(x, y); //移动到指定位置，点击界面按钮 mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0); mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);

4、日志模块的运用

ofstream m_LogStream; //创建log文件 bool CPlcCommunication::CreateLogFile() { char szDir[MAX_PATH]; memset(szDir, 0, sizeof(szDir)); //HMODULE hModule = AfxGetApp()->m_hInstance; GetModuleFileName(NULL, szDir, MAX_PATH); //获取当前路径 PathRemoveFileSpec(szDir); CString strPath = szDir; SYSTEMTIME SystemTime; GetLocalTime(&SystemTime); char cTime[256]; memset(cTime, 0, sizeof(cTime)); sprintf(cTime, "%04u_%02u_%02u_%02u_%02u_%02u_%03u", SystemTime.wYear, SystemTime.wMonth, SystemTime.wDay, SystemTime.wHour, SystemTime.wMinute, SystemTime.wSecond, SystemTime.wMilliseconds); CString strTimeData; strTimeData.Format("%04u_%02u_%02u", SystemTime.wYear, SystemTime.wMonth, SystemTime.wDay); CString strLog; strPath += "\\Log"; if (!PathFileExists(strPath)) { CreateDirectory(strPath, NULL); } strPath += "\\" + strTimeData; if (!PathFileExists(strPath)) { CreateDirectory(strPath, NULL); } strLog.Format(_T("%s\\%s-PC%d.txt"), strPath, cTime); if (strLog.IsEmpty()) { return false; m_LogStream.open(strLog.GetBuffer(0), std::ios::out); if (m_LogStream.is_open()) { return true; }return false; } }//写日志 void CPlcCommunication::WriteLog (string cOneLineLog) { EnterCriticalSection(&m_Log_Section); SYSTEMTIME SystemTime; GetLocalTime(&SystemTime); char cLog[256]; memset(cLog, 0, sizeof(cLog)); sprintf(cLog, "%02u:%02u:%02u:%03u %s", SystemTime.wHour, SystemTime.wMinute, SystemTime.wSecond, SystemTime.wMilliseconds, cOneLineLog.c_str()); if (m_LogStream.is_open()) { m_LogStream << cLog << std::endl; } LeaveCriticalSection(&m_Log_Section); }void CPlcCommunication::CloseLogFile() { m_LogStream.close(); }

5、系统时间

//将系统时间按格式显示 CTime currTime; CString strTime; currTime = CTime::GetCurrentTime(); strTime.Format(_T("%.4d-%.2d-%.2d-%.2d-%.2d-%.2d-%d.bmp"), currTime.GetYear(), currTime.GetMonth(), currTime.GetDay(), currTime.GetHour(), currTime.GetMinute(), currTime.GetSecond())//获取耗时时间 DWORD start_time = GetTickCount(); DWORD end_time = GetTickCount(); //获取的时间值为毫秒 int time=end_time-start_time

6、将int类型数据拆分后放入到byte类型中

BYTE write_content[4]; int num = -1; write_content[0] = (byte)(num & 0xff); write_content[1] = (byte)(num >> 8 & 0xff); write_content[2] = (byte)(num >> 16 & 0xff); write_content[3] = (byte)(num >> 24 & 0xff); //byte转int int bytesToInt(byte* bytes,int size = 4) { int addr = bytes[0] & 0xFF; addr |= ((bytes[1] << 8) & 0xFF00); addr |= ((bytes[2] << 16) & 0xFF0000); addr |= ((bytes[3] << 24) & 0xFF000000); return addr; }

【网络编程|C++网页请求、窗口截取、日志运用、系统时间、C++转BYTE】