| | 1 | \section{\class{wxFileInputStream}}\label{wxfileinputstream} |
| | 2 | |
| | 3 | This class represents data read in from a file. There are actually |
| | 4 | two such groups of classes: this one is based on \helpref{wxFile}{wxfile} |
| | 5 | whereas \helpref{wxFFileInputStream}{wxffileinputstream} is based in |
| | 6 | the \helpref{wxFFile}{wxffile} class. |
| | 7 | |
| | 8 | Note that \helpref{wxFile}{wxfile} and \helpref{wxFFile}{wxffile} differ |
| | 9 | in one aspect, namely when to report that the end of the file has been |
| | 10 | reached. This is documented in \helpref{wxFile::Eof}{wxfileeof} and |
| | 11 | \helpref{wxFFile::Eof}{wxffileeof} and the behaviour of the stream |
| | 12 | classes reflects this difference, i.e. wxFileInputStream will report |
| | 13 | wxSTREAM\_EOF after having read the last byte whereas wxFFileInputStream |
| | 14 | will report wxSTREAM\_EOF after trying to read {\it past} the last byte. |
| | 15 | Related to EOF behavior, note that \helpref{SeekI()}{wxinputstreamseeki} |
| | 16 | can seek beyond the end of the stream (file) and will thus not return |
| | 17 | {\it wxInvalidOffset} for that. |
| | 18 | |
| | 19 | \wxheading{Derived from} |
| | 20 | |
| | 21 | \helpref{wxInputStream}{wxinputstream} |
| | 22 | |
| | 23 | \wxheading{Include files} |
| | 24 | |
| | 25 | <wx/wfstream.h> |
| | 26 | |
| | 27 | \wxheading{See also} |
| | 28 | |
| | 29 | \helpref{wxBufferedInputStream}{wxbufferedinputstream}, \helpref{wxFileOutputStream}{wxfileoutputstream}, \helpref{wxFFileOutputStream}{wxffileoutputstream} |
| | 30 | |
| | 31 | % ---------- |
| | 32 | % Members |
| | 33 | % ---------- |
| | 34 | \latexignore{\rtfignore{\wxheading{Members}}} |
| | 35 | |
| | 36 | \membersection{wxFileInputStream::wxFileInputStream} |
| | 37 | |
| | 38 | \func{}{wxFileInputStream}{\param{const wxString\&}{ ifileName}} |
| | 39 | |
| | 40 | Opens the specified file using its {\it ifilename} name in read-only mode. |
| | 41 | |
| | 42 | \func{}{wxFileInputStream}{\param{wxFile\&}{ file}} |
| | 43 | |
| | 44 | Initializes a file stream in read-only mode using the file I/O object {\it file}. |
| | 45 | |
| | 46 | \func{}{wxFileInputStream}{\param{int}{ fd}} |
| | 47 | |
| | 48 | Initializes a file stream in read-only mode using the specified file descriptor. |
| | 49 | |
| | 50 | \membersection{wxFileInputStream::\destruct{wxFileInputStream}} |
| | 51 | |
| | 52 | \func{}{\destruct{wxFileInputStream}}{\void} |
| | 53 | |
| | 54 | Destructor. |
| | 55 | |
| | 56 | \membersection{wxFileInputStream::Ok} |
| | 57 | |
| | 58 | \constfunc{bool}{Ok}{\void} |
| | 59 | |
| | 60 | Returns true if the stream is initialized and ready. |
| | 61 | |
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