Cpp istream9/3/2023 ![]() The IPersistStream converts a stream into a persistent object. STGM_WRITE | STGM_CREATE | STGM_SHARE_EXCLUSIVE, STGM_CREATE | STGM_TRANSACTED | STGM_READWRITE | STGM_SHARE_EXCLUSIVE, First, create a document file which will hold the GRF file HRESULT SaveGraphFile(IGraphBuilder *pGraph, WCHAR *wszPath)Ĭonst WCHAR wszStreamName = L"ActiveMovieGraph" Pass it a file name in wszPath, and it will save the filter graph to that file. ![]() This code was also brazenly stolen from the DX9 SDK MessageBo圎x(hWnd, "IPicture interface is not supported\t", ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH) įreeResource(hGlobal) // 16Bit Windows Needs This (32Bit - Automatic Release) TRACE( "IPicture interface is not supported\n" ) If((hr = OleLoadPicture(pStream, nSize, FALSE, IID_IPicture, (LPVOID *)&m_IPicture)) = E_NOINTERFACE) If(CreateStreamOnHGlobal(hGlobal, TRUE, &pStream) = S_OK) MessageBo圎x(hWnd, "Can not allocate enough memory\t", ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH) HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd It is generally assumed to be input from an external source, such as the keyboard or a file. The standard input stream is a source of characters determined by the environment. ![]() TRACE( "Can not allocate enough memory\n" ) Object of class istream that represents the standard input stream oriented to narrow characters (of type char).It corresponds to the C stream stdin. HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, nSize) ~~~~~~ (Use Draw Functions To Show It On a Device Context)īOOL CPicViewer::LoadPictureData(BYTE *pBuffer, int nSize) OutPut: Feed The IPicture Object With The Picture Data InPut: Buffer Of Data Source (File / Resource) And Its Size ~~~~ And Load It Into The Current IPicture Object In Use Does: Read The Picture Data From a Source (File / Resource) While (input.read((char*)&data, sizeof(data))) // Success It provides classes and functions to read data from input sources such as files, strings, and network sockets.Įxample 1: Reading data from a file using ifstreamĮxample 3: Reading binary data from a file using ifstream IStream is a package library for input stream operations in C++.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |