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Backported r45754 to 2.8 branch closing #4785.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@55100 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Bryan Petty
2008-08-16 02:46:05 +00:00
parent c53016953a
commit 0930be303a
1 changed files with 25 additions and 27 deletions
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52
docs/latex/wx/mbconv.tex
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@@ -218,31 +218,10 @@ return type (without const).
\membersection{wxMBConv::FromWChar}\label{wxmbconvfromwchar} \membersection{wxMBConv::FromWChar}\label{wxmbconvfromwchar}
\constfunc{virtual size\_t}{FromWChar}{\param{wchar\_t *}{dst}, \param{size\_t }{dstLen}, \param{const char *}{src}, \param{size\_t }{srcLen = wxNO\_LEN}} \constfunc{virtual size\_t}{FromWChar}{\param{char\_t *}{dst}, \param{size\_t }{dstLen}, \param{const wchar\_t *}{src}, \param{size\_t }{srcLen = wxNO\_LEN}}
The most general function for converting a multibyte string to a wide string.
The main case is when \arg{dst} is not \NULL and \arg{srcLen} is not
\texttt{wxNO\_LEN} (which is defined as \texttt{(size\_t)$-1$}): then
the function converts exactly \arg{srcLen} bytes starting at \arg{src} into
wide string which it output to \arg{dst}. If the length of the resulting wide
string is greater than \arg{dstLen}, an error is returned. Note that if
\arg{srcLen} bytes don't include \NUL characters, the resulting wide string is
not \NUL-terminated neither.
If \arg{srcLen} is \texttt{wxNO\_LEN}, the function supposes that the string is
properly (i.e. as necessary for the encoding handled by this conversion)
\NUL-terminated and converts the entire string, including any trailing \NUL
bytes. In this case the wide string is also \NUL-terminated.
Finally, if \arg{dst} is \NULL, the function returns the length of the needed
buffer.
\wxheading{Return value}
The number of characters written to \arg{dst} (or the number of characters
which would have been written to it if it were non-\NULL) on success or
\texttt{wxCONV\_FAILED} on error.
This function has the same semantics as \helpref{ToWChar}{wxmbconvtowchar}
except that it converts a wide string to multibyte one.
\membersection{wxMBConv::GetMaxMBNulLen}\label{wxmbconvgetmaxmbnullen} \membersection{wxMBConv::GetMaxMBNulLen}\label{wxmbconvgetmaxmbnullen}
@@ -269,9 +248,28 @@ The other cases are not currently supported and \texttt{wxCONV\_FAILED}
\membersection{wxMBConv::ToWChar}\label{wxmbconvtowchar} \membersection{wxMBConv::ToWChar}\label{wxmbconvtowchar}
\constfunc{virtual size\_t}{ToWChar}{\param{char\_t *}{dst}, \param{size\_t }{dstLen}, \param{const wchar\_t *}{src}, \param{size\_t }{srcLen = wxNO\_LEN}} \constfunc{virtual size\_t}{ToWChar}{\param{wchar\_t *}{dst}, \param{size\_t }{dstLen}, \param{const char\_t *}{src}, \param{size\_t }{srcLen = wxNO\_LEN}}
This function has the same semantics as \helpref{FromWChar}{wxmbconvfromwchar} The most general function for converting a multibyte string to a wide string.
except that it converts a wide string to multibyte one. The main case is when \arg{dst} is not \NULL and \arg{srcLen} is not
\texttt{wxNO\_LEN} (which is defined as \texttt{(size\_t)$-1$}): then
the function converts exactly \arg{srcLen} bytes starting at \arg{src} into
wide string which it output to \arg{dst}. If the length of the resulting wide
string is greater than \arg{dstLen}, an error is returned. Note that if
\arg{srcLen} bytes don't include \NUL characters, the resulting wide string is
not \NUL-terminated neither.
If \arg{srcLen} is \texttt{wxNO\_LEN}, the function supposes that the string is
properly (i.e. as necessary for the encoding handled by this conversion)
\NUL-terminated and converts the entire string, including any trailing \NUL
bytes. In this case the wide string is also \NUL-terminated.
Finally, if \arg{dst} is \NULL, the function returns the length of the needed
buffer.
\wxheading{Return value}
The number of characters written to \arg{dst} (or the number of characters
which would have been written to it if it were non-\NULL) on success or
\texttt{wxCONV\_FAILED} on error.