docs/latex/wx/tempfilestrm.tex

   1 %
   2 % automatically generated by HelpGen $Revision$ from
   3 % wx/wfstream.h at 07/Mar/05 20:45:33
   4 %
   5
   6 \section{\class{wxTempFileOutputStream}}\label{wxtempfileoutputstream}
   7
   8 wxTempFileOutputStream is an output stream based on \helpref{wxTempFile}{wxtempfile}. It
   9 provides a relatively safe way to replace the contents of the
  10 existing file.
  11
  12 \wxheading{Derived from}
  13
  14 \helpref{wxOutputStream}{wxoutputstream}\\
  15 \helpref{wxStreamBase}{wxstreambase}
  16
  17 \wxheading{Include files}
  18
  19 <wx/wfstream.h>
  20
  21 \wxheading{Library}
  22
  23 \helpref{wxBase}{librarieslist}
  24
  25 \wxheading{See also}
  26
  27 \helpref{wxTempFile}{wxtempfile}
  28
  29 \latexignore{\rtfignore{\wxheading{Members}}}
  30
  31
  32 \membersection{wxTempFileOutputStream::wxTempFileOutputStream}\label{wxtempfileoutputstreamwxtempfileoutputstream}
  33
  34 \func{}{wxTempFileOutputStream}{\param{const wxString\& }{fileName}}
  35
  36 Associates wxTempFileOutputStream with the file to be replaced and opens it. You should use
  37 \helpref{IsOk}{wxstreambaseisok} to verify if the constructor succeeded.
  38
  39 Call \helpref{Commit()}{wxtempfileoutputstreamcommit} or \helpref{Close()}{wxoutputstreamclose} to
  40 replace the old file and close this one. Calling \helpref{Discard()}{wxtempfileoutputstreamdiscard}
  41 (or allowing the destructor to do it) will discard the changes.
  42
  43
  44 \membersection{wxTempFileOutputStream::Commit}\label{wxtempfileoutputstreamcommit}
  45
  46 \func{bool}{Commit}{\void}
  47
  48 Validate changes: deletes the old file of the given name and renames the new
  49 file to the old name. Returns {\tt true} if both actions succeeded. If {\tt false} is
  50 returned it may unfortunately mean two quite different things: either that
  51 either the old file couldn't be deleted or that the new file couldn't be renamed
  52 to the old name.
  53
  54
  55 \membersection{wxTempFileOutputStream::Discard}\label{wxtempfileoutputstreamdiscard}
  56
  57 \func{void}{Discard}{\void}
  58
  59 Discard changes: the old file contents are not changed, the temporary file is
  60 deleted.
  61