Waiting for a Process to Finish

[bg_ie]

Hi,

I'm starting a process as follows -

Process process = new Process();
process.StartIn fo.UseShellExec ute = false;
process.StartIn fo.FileName = installValue + "\\Lib\\sit e-packages\
\pythonwin\\Pyt honwin.exe";
process.StartIn fo.Arguments = "/run " + script;

process.Start() ;
process.WaitFor Exit();

when the user presses a button on my GUI. The problem is that my
program is blocked until python is closed. Instead, I'd like to
disable all buttons in my appilcation until python is closed. That way
my program is not blocked but I can still stop the user changing
settings until python is closed.

Should I create a Process which polls process.WaitFor Exit() or is
there a better/easier way of doing this?

Thanks,

Barry.

[Alberto Poblacion]

<bg***@yahoo.co mwrote in message
news:11******** **************@ l77g2000hsb.goo glegroups.com.. .

Should I create a Process which polls process.WaitFor Exit() or is
there a better/easier way of doing this?

Instead of polling, it is better to connect your code to the event
"Exited" of the Process class.

[bg_ie]

On 27 Mar, 09:51, "Alberto Poblacion" <earthling-
quitaestoparaco ntes...@poblaci on.orgwrote:

<[e-mail] wrote in message

news:11******** **************@ l77g2000hsb.goo glegroups.com.. .

Should I create a Process which polls process.WaitFor Exit() or is
there a better/easier way of doing this?

Instead of polling, it is better to connect your code to the event
"Exited" of the Process class.

Cool, thanks for the suggestion. I tried it out but I now have another
problem. I now disable my controls before running the Python process,
but when I attempt to re-enable them via the callback for the Exited
event, I am informed that I cannot access the controls from another
thread other than the one they were created in. So I guess I need to
issue an event to my form thread to tell it to re-enable the controls.
But how do I do that?

Thanks again for your help,

Barry.

[Jon Skeet [C# MVP]]

On Mar 27, 9:33 am, [e-mail] wrote:

Cool, thanks for the suggestion. I tried it out but I now have another
problem. I now disable my controls before running the Python process,
but when I attempt to re-enable them via the callback for the Exited
event, I am informed that I cannot access the controls from another
thread other than the one they were created in. So I guess I need to
issue an event to my form thread to tell it to re-enable the controls.
But how do I do that?

See http://pobox.com/~skeet/csharp/threads/winforms.shtml

Jon