Re: Java start new Process (Browser) and notice when Browser Window is closed.
Peter.weik@indatex.com wrote:
I try to make it more concret:
I will read the problem carefully this time.
process = Runtime.getRuntime().exec ("rundll32
url.dll,FileProtocolHandler " + theUrl);
process.waitFor();
while(1==1){
if(process.exitValue() > 0){ //Process doesnt exist anymore
doSomething();
break;
}
}
The java programm (it is a component) starts, the loop is running, If I
close now the browser, the exitValue() is still 0!!
I simply dont understand. i have a variable of the process, the process
doesnt exist anymore (Browser Window closed from the user), why isn't
there a property in 'brower' which tells me "The process which a
reference is not alive anymore").
Have I been clear?
Yes. That seems relatively clear, but I am no expert in
processes, so I had better make no comment on that
aspect of the problem. OTOH - I still recommend that
this is the entirely *wrong* strategy for detecting the end
of the 'display of a web page' - is that not the real intent
here?
After all, after your Java process has displayed the URL
in my browser, I might then use that window to surf 'home',
and while your process still reposrts that the JVM that ran
the browser is still 'active' - you cannot be sure it is displaying
the correct page.
As an aside - what is the content of this URL?
Do you *control* (can edit) the content?
Why is it so important for your application to know
whether the content is still open for display?
(There are a number of alternate strategies you might
try for the end effect you want, but I still do not have
a clear idea of what it is you are trying to *achieve*
by all this.)
Andrew T.