OutputDebugString 캡처하기 - DebugView 를 만들어보자

디버깅시 유용한 DebugView 는 OutputDebugString 을 캡처하여 보여주는 역할을 한다. 이와 동일한 기능을 구현하는 코드 예는 다음과 같다.

////////////////////////////////////////////////////////////////////////////////////////////////     struct DbWinBuffer     {         DWORD dwProcessId;         char data[4096 - sizeof(DWORD)];     };       DbWinBuffer* dbBuffer;       HANDLE hAckEvent;     HANDLE hEvent;     HANDLE hSharedFile;       SECURITY_DESCRIPTOR sd;     SECURITY_ATTRIBUTES sa;       ////////////////////////////////////////////////////////////////////////////////////////////////       sa.nLength = sizeof(SECURITY_ATTRIBUTES);     sa.bInheritHandle = true;     sa.lpSecurityDescriptor = &sd;       if (!InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION))     {         printf("ERROR: InitializeSecurityDescriptor\\n");         return 1;     }       if (!SetSecurityDescriptorDacl(&sd, true, 0, false))     {         printf("ERROR: SetSecurityDescriptorDacl\n");         return 1;     }       hAckEvent = CreateEvent(&sa, false, false, L"DBWIN_BUFFER_READY");     if (!hAckEvent)     {         printf("ERROR: CreateEvent(\\"DBWIN_BUFFER_READY\\")\\n");         return 1;     }       hEvent = CreateEvent(&sa, false, false, L"DBWIN_DATA_READY");     if (!hEvent)     {         printf("ERROR: CreateEvent(\\"DBWIN_DATA_READY\\")\\n");         return 1;     }       hSharedFile = CreateFileMapping((HANDLE)-1, &sa, PAGE_READWRITE, 0, 4096, L"DBWIN_BUFFER");     if(!hSharedFile)     {         printf("ERROR: CreateFileMapping(\\"DBWIN_BUFFER\\")\\n");         return 1;     }       dbBuffer = static_cast<DbWinBuffer*>(MapViewOfFile(hSharedFile, FILE_MAP_READ, 0, 0, 4096));     if(!dbBuffer)     {         printf("ERROR: MapViewOfFile\\n");         return 1;     }       SetEvent(hAckEvent);       DWORD pid = GetCurrentProcessId();     printf("Tracing PID: %dnn", pid);       for(;;)     {                     DWORD ret = WaitForSingleObject(hEvent, INFINITE);         if (ret == WAIT_FAILED)         {             printf("ERROR: WaitForSingleObject\\n");             return 1;         }           if (dbBuffer->dwProcessId == pid)         {             printf("%s", dbBuffer->data);         }           SetEvent(hAckEvent);     }

http://www.devmaster.net/forums/showthread.php?t=11229