First step in background erase optimization

[wxWidgets.git] / docs / latex / wx / ffile.tex

diff --git a/docs/latex/wx/ffile.tex b/docs/latex/wx/ffile.tex
index d3bfa20e35dda29bb45baf7b9e52cf0a82d1570a..bfeb65e11b908d9aec4e0297087feb2c889ab2bb 100644 (file)
--- a/docs/latex/wx/ffile.tex
+++ b/docs/latex/wx/ffile.tex
@@ -6,7 +6,7 @@
 %% Created:     14.01.02 (extracted from file.tex)
 %% RCS-ID:      $Id$
 %% Copyright:   (c) Vadim Zeitlin
-%% License:     wxWindows license
+%% License:     wxWidgets license
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \section{\class{wxFFile}}\label{wxffile}
@@ -34,6 +34,7 @@ None.
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
+
 \membersection{wxFFile::wxFFile}\label{wxffileconstr}
 
 \func{}{wxFFile}{\void}
@@ -62,6 +63,7 @@ for the text files.}
 
 \docparam{fp}{An existing file descriptor, such as stderr.}
 
+
 \membersection{wxFFile::\destruct{wxFFile}}
 
 \func{}{\destruct{wxFFile}}{\void}
@@ -70,6 +72,7 @@ Destructor will close the file.
 
 NB: it is not virtual so you should {\it not} derive from wxFFile!
 
+
 \membersection{wxFFile::Attach}\label{wxffileattach}
 
 \func{void}{Attach}{\param{FILE*}{ fp}}
@@ -79,18 +82,21 @@ Attaches an existing file pointer to the wxFFile object.
 The descriptor should be already opened and it will be closed by wxFFile
 object.
 
+
 \membersection{wxFFile::Close}\label{wxffileclose}
 
 \func{bool}{Close}{\void}
 
-Closes the file and returns TRUE on success.
+Closes the file and returns \true on success.
+
 
 \membersection{wxFFile::Detach}\label{wxffiledetach}
 
 \func{void}{Detach}{\void}
 
-Get back a file pointer from wxFFile object - the caller is responsible for closing the file if this
-descriptor is opened. \helpref{IsOpened()}{wxffileisopened} will return FALSE after call to Detach().
+Get back a file pointer from wxFFile object -- the caller is responsible for closing the file if this
+descriptor is opened. \helpref{IsOpened()}{wxffileisopened} will return \false after call to Detach().
+
 
 \membersection{wxFFile::fp}\label{wxffilefp}
 
@@ -98,29 +104,54 @@ descriptor is opened. \helpref{IsOpened()}{wxffileisopened} will return FALSE af
 
 Returns the file pointer associated with the file.
 
+
 \membersection{wxFFile::Eof}\label{wxffileeof}
 
 \constfunc{bool}{Eof}{\void}
 
-Returns TRUE if the an attempt has been made to read {\it past}
+Returns \true if the an attempt has been made to read {\it past}
 the end of the file. 
 
 Note that the behaviour of the file descriptor based class
 \helpref{wxFile}{wxfile} is different as \helpref{wxFile::Eof}{wxfileeof}
-will return TRUE here as soon as the last byte of the file has been
+will return \true here as soon as the last byte of the file has been
 read.
 
+Also note that this method may only be called for opened files and may crash if
+the file is not opened.
+
+\wxheading{See also}
+
+\helpref{IsOpened}{wxffileisopened}
+
+
+\membersection{wxFFile::Error}\label{wxffileerror}
+
+Returns \true if an error has occured on this file, similar to the standard
+\texttt{ferror()} function.
+
+Please note that this method may only be called for opened files and may crash
+if the file is not opened.
+
+\wxheading{See also}
+
+\helpref{IsOpened}{wxffileisopened}
+
+
 \membersection{wxFFile::Flush}\label{wxffileflush}
 
 \func{bool}{Flush}{\void}
 
-Flushes the file and returns TRUE on success.
+Flushes the file and returns \true on success.
+
 
 \membersection{wxFFile::IsOpened}\label{wxffileisopened}
 
 \constfunc{bool}{IsOpened}{\void}
 
-Returns TRUE if the file has been opened.
+Returns \true if the file is opened. Most of the methods of this class may only
+be used for an opened file.
+
 
 \membersection{wxFFile::Length}\label{wxffilelength}
 
@@ -128,11 +159,12 @@ Returns TRUE if the file has been opened.
 
 Returns the length of the file.
 
+
 \membersection{wxFFile::Open}\label{wxffileopen}
 
 \func{bool}{Open}{\param{const char*}{ filename}, \param{const char*}{ mode = "r"}}
 
-Opens the file, returning TRUE if successful.
+Opens the file, returning \true if successful.
 
 \wxheading{Parameters}
 
@@ -140,6 +172,7 @@ Opens the file, returning TRUE if successful.
 
 \docparam{mode}{The mode in which to open the file.}
 
+
 \membersection{wxFFile::Read}\label{wxffileread}
 
 \func{size\_t}{Read}{\param{void*}{ buffer}, \param{off\_t}{ count}}
@@ -156,11 +189,12 @@ Reads the specified number of bytes into a buffer, returning the actual number r
 
 The number of bytes read.
 
+
 \membersection{wxFFile::Seek}\label{wxffileseek}
 
 \func{bool}{Seek}{\param{long }{ofs}, \param{wxSeekMode }{mode = wxFromStart}}
 
-Seeks to the specified position and returs TRUE on success.
+Seeks to the specified position and returns \true on success.
 
 \wxheading{Parameters}
 
@@ -168,23 +202,26 @@ Seeks to the specified position and returs TRUE on success.
 
 \docparam{mode}{One of {\bf wxFromStart}, {\bf wxFromEnd}, {\bf wxFromCurrent}.}
 
+
 \membersection{wxFFile::SeekEnd}\label{wxffileseekend}
 
 \func{bool}{SeekEnd}{\param{long }{ofs = 0}}
 
 Moves the file pointer to the specified number of bytes before the end of the file
-and returns TRUE on success.
+and returns \true on success.
 
 \wxheading{Parameters}
 
 \docparam{ofs}{Number of bytes before the end of the file.}
 
+
 \membersection{wxFFile::Tell}\label{wxffiletell}
 
 \constfunc{size\_t}{Tell}{\void}
 
 Returns the current position.
 
+
 \membersection{wxFFile::Write}\label{wxffilewrite}
 
 \func{size\_t}{Write}{\param{const void*}{ buffer}, \param{size\_t}{ count}}
@@ -201,13 +238,14 @@ Writes the specified number of bytes from a buffer.
 
 Number of bytes written.
 
+
 \membersection{wxFFile::Write}\label{wxffilewrites}
 
-\func{bool}{Write}{\param{const wxString\& }{s}, \param{wxMBConv&}{ conv = wxConvLibc}}
+\func{bool}{Write}{\param{const wxString\& }{s}, \param{wxMBConv\&}{ conv = wxConvUTF8}}
 
-Writes the contents of the string to the file, returns TRUE on success.
+Writes the contents of the string to the file, returns \true on success.
 
-The second argument is only meaningful in Unicode build of wxWindows when
+The second argument is only meaningful in Unicode build of wxWidgets when
 {\it conv} is used to convert {\it s} to multibyte representation.