\section{\class{wxProcess}}\label{wxprocess}
-The objects of this class are used in conjunction with the
+The objects of this class are used in conjunction with the
\helpref{wxExecute}{wxexecute} function. When a wxProcess object is passed to
wxExecute(), its \helpref{OnTerminate()}{wxprocessonterminate} virtual method
is called when the process terminates. This allows the program to be
processed (and call \helpref{Detach()}{wxprocessdetach} for others).
wxProcess also supports IO redirection of the child process. For this, you have
-to call its \helpref{Redirect}{wxprocessredirect} method before passing it to
-\helpref{wxExecute}{wxexecute}. If the child process was launched successfully,
-\helpref{GetInputStream}{wxprocessgetinputstream},
-\helpref{GetOutputStream}{wxprocessgetoutputstream} and
+to call its \helpref{Redirect}{wxprocessredirect} method before passing it to
+\helpref{wxExecute}{wxexecute}. If the child process was launched successfully,
+\helpref{GetInputStream}{wxprocessgetinputstream},
+\helpref{GetOutputStream}{wxprocessgetoutputstream} and
\helpref{GetErrorStream}{wxprocessgeterrorstream} can then be used to retrieve
the streams corresponding to the child process standard output, input and
error output respectively.
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxProcess::wxProcess}\label{wxprocessconstr}
+\membersection{wxProcess::wxProcess}\label{wxprocessctor}
\func{}{wxProcess}{\param{wxEvtHandler *}{ parent = NULL}, \param{int}{ id = -1}}
\func{}{wxProcess}{\param{int }{flags}}
Constructs a process object. {\it id} is only used in the case you want to
-use wxWindows events. It identifies this object, or another window that will
+use wxWidgets events. It identifies this object, or another window that will
receive the event.
If the {\it parent} parameter is different from NULL, it will receive
\docparam{flags}{either {\tt wxPROCESS\_DEFAULT} or {\tt wxPROCESS\_REDIRECT}}
-\membersection{wxProcess::\destruct{wxProcess}}
+\membersection{wxProcess::\destruct{wxProcess}}\label{wxprocessdtor}
\func{}{\destruct{wxProcess}}{\void}
notification about the process termination. However, it might happen that the
parent object is destroyed before the external process is terminated (e.g. a
window from which this external process was launched is closed by the user)
-and in this case it {\bf should not delete} the wxProcess object, but
+and in this case it {\bf should not delete} the wxProcess object, but
{\bf should call Detach()} instead. After the wxProcess object is detached
from its parent, no notification events will be sent to the parent and the
object will delete itself upon reception of the process termination
If it is NULL, you have not turned on the redirection.
See \helpref{wxProcess::Redirect}{wxprocessredirect}.
+\membersection{wxProcess::IsErrorAvailable}\label{wxprocessiserroravailable}
+
+\constfunc{bool}{IsErrorAvailable}{\void}
+
+Returns {\tt true} if there is data to be read on the child process standard
+error stream.
+
+\wxheading{See also}
+
+\helpref{IsInputAvailable}{wxprocessisinputavailable}
+
+\membersection{wxProcess::IsInputAvailable}\label{wxprocessisinputavailable}
+
+\constfunc{bool}{IsInputAvailable}{\void}
+
+Returns {\tt true} if there is data to be read on the child process standard
+output stream. This allows to write simple (and extremely inefficient)
+polling-based code waiting for a better mechanism in future wxWidgets versions.
+
+See the \helpref{exec sample}{sampleexec} for an example of using this
+function.
+
+\wxheading{See also}
+
+\helpref{IsInputOpened}{wxprocessisinputopened}
+
+\membersection{wxProcess::IsInputOpened}\label{wxprocessisinputopened}
+
+\constfunc{bool}{IsInputOpened}{\void}
+
+Returns {\tt true} if the child process standard output stream is opened.
+
\membersection{wxProcess::Kill}\label{wxprocesskill}
-\func{static wxKillError}{Kill}{\param{int}{ pid}, \param{wxSignal}{ signal = wxSIGNONE}}
+\func{static wxKillError}{Kill}{\param{int}{ pid}, \param{wxSignal}{ signal = wxSIGNONE}, \param{int }{flags = wxKILL\_NOCHILDREN}}
Send the specified signal to the given process. Possible signal values are:
\end{verbatim}
{\tt wxSIGNONE}, {\tt wxSIGKILL} and {\tt wxSIGTERM} have the same meaning
-under both Unix and Windows but all the other signals are equivalent to
+under both Unix and Windows but all the other signals are equivalent to
{\tt wxSIGTERM} under Windows.
+The {\it flags} parameter can be wxKILL\_NOCHILDREN (the default),
+or wxKILL\_CHILDREN, in which case the child processes of this
+process will be killed too. Note that under Unix, for wxKILL\_CHILDREN
+to work you should have created the process passing wxEXEC\_MAKE\_GROUP\_LEADER.
+
Returns the element of {\tt wxKillError} enum:
\begin{verbatim}
\func{static bool}{Exists}{\param{int}{ pid}}
-Returns {\tt TRUE} if the given process exists in the system.
+Returns {\tt true} if the given process exists in the system.
\wxheading{See also}
\membersection{wxProcess::OnTerminate}\label{wxprocessonterminate}
-\constfunc{void}{OnTerminate}{\param{int}{ pid}, \param{int}{ status}}
+\func{void}{OnTerminate}{\param{int}{ pid}, \param{int}{ status}}
It is called when the process with the pid {\it pid} finishes.
-It raises a wxWindows event when it isn't overridden.
+It raises a wxWidgets event when it isn't overridden.
\docparam{pid}{The pid of the process which has just terminated.}
\membersection{wxProcess::Open}\label{wxprocessopen}
-\func{static wxProcess *}{Open}{\param{const wxString\& }{cmd}}
+\func{static wxProcess *}{Open}{\param{const wxString\& }{cmd}, \param{int }{flags = wxEXEC\_ASYNC}}
This static method replaces the standard {\tt popen()} function: it launches
the process specified by the {\it cmd} parameter and returns the wxProcess
\wxheading{Parameters}
\docparam{cmd}{The command to execute, including optional arguments.}
+\docparam{flags}{The flags to pass to \helpref{wxExecute}{wxexecute}.
+ NOTE: wxEXEC\_SYNC should not be used.}
\wxheading{Return value}
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