updated the script to generate pieces of TeX documentation as well

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

diff --git a/docs/latex/wx/function.tex b/docs/latex/wx/function.tex
index 0b116e9eaeb2302d1bc1247c300c9eb330d1f9e8..fae00d9f2d2318a9c8dd5417cfdbe64eb43b1566 100644 (file)
--- a/docs/latex/wx/function.tex
+++ b/docs/latex/wx/function.tex
@@ -2965,3 +2965,56 @@ This is the same as \helpref{wxCHECK2}{wxcheck2}, but
 \helpref{wxFAIL\_MSG}{wxfailmsg} with the specified {\it msg} is called
 instead of wxFAIL() if the {\it condition} is false.
 
 \helpref{wxFAIL\_MSG}{wxfailmsg} with the specified {\it msg} is called
 instead of wxFAIL() if the {\it condition} is false.
 

+\section{Environment access functions}\label{environfunctions}
+
+The functions in this section allow to access (get) or change value of
+environment variables in a portable way. They are currently implemented under
+Win32 and POSIX-like systems (Unix).
+
+% TODO add some stuff about env var inheriting but not propagating upwards (VZ)
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+\membersection{wxGetenv}\label{wxgetenvmacro}
+
+\func{wxChar *}{wxGetEnv}{\param{const wxString\&}{ var}}
+
+This is a macro defined as {\tt getenv()} or its wide char version in Unicode
+mode.
+
+Note that under Win32 it may not return correct value for the variables set
+with \helpref{wxSetEnv}{wxsetenv}, use \helpref{wxGetEnv}{wxgetenv} function
+instead.
+
+\membersection{wxGetEnv}\label{wxgetenv}
+
+\func{bool}{wxGetEnv}{\param{const wxString\&}{ var}, \param{wxString *}{value}}
+
+Returns the current value of the environment variable {\it var} in {\it value}.
+{\it value} may be {\tt NULL} if you just want to know if the variable exists
+and are not interested in its value.
+
+Returns {\tt TRUE} if the variable exists, {\tt FALSE} otherwise.
+
+\membersection{wxSetEnv}\label{wxsetenv}
+
+\func{bool}{wxSetEnv}{\param{const wxString\&}{ var}, \param{const wxChar *}{value}}
+
+Sets the value of the environment variable {\it var} (adding it if necessary)
+to {\it value}.
+
+Returns {\tt TRUE} on success.
+
+\membersection{wxUnsetEnv}\label{wxunsetenv}
+
+\func{bool}{wxUnsetEnv}{\param{const wxString\&}{ var}}
+
+Removes the variable {\it var} from the environment. 
+\helpref{wxGetEnv}{wxgetenv} will return {\tt NULL} after the call to this
+function.
+
+Returns {\tt TRUE} on success.
+
+