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
  16 \wxheading{Include files}
  17
  18 <wx/wfstream.h>
  19
  20 \wxheading{Library}
  21
  22 \helpref{wxBase}{librarieslist}
  23
  24 \wxheading{See also}
  25
  26 \helpref{wxTempFile}{wxtempfile}
  27
  28 \latexignore{\rtfignore{\wxheading{Members}}}
  29
  30
  31 \membersection{wxTempFileOutputStream::wxTempFileOutputStream}\label{wxtempfileoutputstreamwxtempfileoutputstream}
  32
  33 \func{}{wxTempFileOutputStream}{\param{const wxString\& }{fileName}}
  34
  35 Associates wxTempFileOutputStream with the file to be replaced and opens it. You should use
  36 \helpref{IsOk}{wxstreambaseisok} to verify if the constructor succeeded.
  37
  38 Call \helpref{Commit()}{wxtempfileoutputstreamcommit} or \helpref{Close()}{wxoutputstreamclose} to
  39 replace the old file and close this one. Calling \helpref{Discard()}{wxtempfileoutputstreamdiscard}
  40 (or allowing the destructor to do it) will discard the changes.
  41
  42
  43 \membersection{wxTempFileOutputStream::Commit}\label{wxtempfileoutputstreamcommit}
  44
  45 \func{bool}{Commit}{\void}
  46
  47 Validate changes: deletes the old file of the given name and renames the new
  48 file to the old name. Returns {\tt true} if both actions succeeded. If {\tt false} is
  49 returned it may unfortunately mean two quite different things: either that
  50 either the old file couldn't be deleted or that the new file couldn't be renamed
  51 to the old name.
  52
  53
  54 \membersection{wxTempFileOutputStream::Discard}\label{wxtempfileoutputstreamdiscard}
  55
  56 \func{void}{Discard}{\void}
  57
  58 Discard changes: the old file contents are not changed, the temporary file is
  59 deleted.
  60