1. wxProcess changes to make capturing subprocess output easier (and more

reliable), now works in both sync and async modes
2. wxSafeYieldBug() corrected, wxWindowDisabler which is now used in it
   added and documented
3. exec sample updated to illustrate capturing the subprocess output
4. wxStreamBase::IsOk() added
5. wxInputStream::Eof() added and non-blocking Eof() implementation in
   wxPipeInputStream used by wxExecute


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6400 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/function.tex

@@ -1117,7 +1117,7 @@ registered with the dynamic class system using DECLARE... and IMPLEMENT... macro
 Called when wxWindows exits, to clean up the DDE system. This no longer needs to be
 called by the application.
 
-See also helpref{wxDDEInitialize}{wxddeinitialize}.
+See also \helpref{wxDDEInitialize}{wxddeinitialize}.
 
 \wxheading{Include files}
 
@@ -1259,6 +1259,8 @@ wxWindows errors. See also \helpref{wxFatalError}{wxfatalerror}.
 
 \func{long}{wxExecute}{\param{char **}{argv}, \param{bool }{sync = FALSE}, \param{wxProcess *}{callback = NULL}}
 
+\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}}
+
 Executes another program in Unix or Windows.
 
 The first form takes a command string, such as {\tt "emacs file.txt"}.
@@ -1266,6 +1268,9 @@ The first form takes a command string, such as {\tt "emacs file.txt"}.
 The second form takes an array of values: a command, any number of
 arguments, terminated by NULL.
 
+The semantics of the third version is different from the first two and is
+described in more details below.
+
 If {\it sync} is FALSE (the default), flow of control immediately returns.
 If TRUE, the current application waits until the other program has terminated.
 
@@ -1285,6 +1290,10 @@ parameter can not be non NULL for synchronous execution),
 \helpref{wxProcess::OnTerminate}{wxprocessonterminate} will be called when
 the process finishes.
 
+Finally, you may use the third overloaded version of this function to execute
+a process (always synchronously) and capture its output in the array 
+{\it output}.
+
 See also \helpref{wxShell}{wxshell}, \helpref{wxProcess}{wxprocess}, 
 \helpref{Exec sample}{sampleexec}.