10 More Discussions You Might Find Interesting
1. Programming
python gui or c++ gui or java gui?
and when to use etch one? (1 Reply)
Discussion started by: kaja
1 Replies
2. OS X (Apple)
Hi Experts,
Now the problem is when I run the install script inside .app folder, it opens a GUI and asks for user input. I want to avoid these GUI. I want to provide input when i run install script e.g.
$ ./install < inputfile
I used to redirect input from input file to install script. But... (4 Replies)
Discussion started by: akash.mahakode
4 Replies
3. Linux
Hello
Im stuck with a project on converting existing applications in to their portable versions, What i mean is that i want an application to run on a Linux OS without the need of actually installing the application on that machine. My preffered OS is fedora as it is used on most machines in my... (1 Reply)
Discussion started by: engineeringme
1 Replies
4. Shell Programming and Scripting
I was wondering if it is possible to run a GUI window (say Firefox) without actually showing up the window on the desktop but still make it do its own regular stuff (like maybe do something via the command line). Sorry if its a dumb question.
Thanks (3 Replies)
Discussion started by: Legend986
3 Replies
5. Programming
Hello, I want know about building a product on Sun solaris and Redhat Linux.
Product would contain C,C++, Java, UNIX Shell scripts and so on. It will not be a client server programme.
Thanks!
Shafi (5 Replies)
Discussion started by: shafi2all
5 Replies
6. UNIX for Advanced & Expert Users
Hello everyone, I was just wondering if there was a way to make it so that usernames could be used across applications.
For instance, I have a server that has a bunch of users. I want these users to have ways of accessing my database as well as a variety of other programs, but I don't want them... (2 Replies)
Discussion started by: gonzofish
2 Replies
7. Shell Programming and Scripting
i have to write a script that which would send mails
For all the transient apps
1. How many apps are running
2. Since when is the app running
plz help me in this...............
plz help me, its urgent,.................
plzzzzzzzzzzzzzzzzzzzzzzzzzzz (2 Replies)
Discussion started by: ali560045
2 Replies
8. UNIX for Advanced & Expert Users
Hi all,
I have some UNIX servers (all flavor to be honest: SOLARIS, AIX, HP-UX) running some applications.
I would like to publish these applications to remote client mainly running Windows XP.
I know i can remotely access the desktop thanks to Cygwin,Hummingbird EXCEED...
But I don't... (2 Replies)
Discussion started by: Platinium
2 Replies
9. UNIX for Dummies Questions & Answers
Hello all,
1) I want to have a GUI application that will call Unix shell scripts,
2) that GUI application should be able to reside on windows ( if possible) and then call Unix shell script either directly or through a server residing on unix.
That is for example.
If a is windows gui (... (1 Reply)
Discussion started by: hchivukula
1 Replies
10. UNIX for Dummies Questions & Answers
I am an Oracle DBA who has previously worked only on NT machines. I need to install Oracle on an AIX box. This Unix server has only a CRT monitor. The Oracle installation REQUIRES a graphical means of seeing the Unix machine. I've been told that I should telnet from a PC that can display X... (2 Replies)
Discussion started by: jbrax
2 Replies
Wx::Thread(3pm) User Contributed Perl Documentation Wx::Thread(3pm)
NAME
Thread - using wxPerl with threads
SYNOPSIS
# the order of these use()s is important
use threads;
use threads::shared;
use Wx;
my $DONE_EVENT : shared = Wx::NewEventType;
my $worker = threads->create( &work );
# create frames, etc
my $frame = Wx::Frame->new( ... );
EVT_COMMAND( $frame, -1, $DONE_EVENT, &done );
$app->MainLoop;
sub done {
my( $frame, $event ) = @_;
print $event->GetData;
}
sub work {
# ... do stuff, create a shared $result value
my $threvent = new Wx::PlThreadEvent( -1, $DONE_EVENT, $result );
Wx::PostEvent( $frame, $threvent );
}
# event handler
sub OnCreateThread {
# @_ = () is necessary to avoid "Scalars leaked"
my( $self, $event ) = @_; @_ = ();
threads->create( ... );
}
DESCRIPTION
Threaded GUI application are somewhat different from non-GUI threaded applications in that the main thread (which runs the GUI) must never
block. Also, in wxWidgets, no thread other than the main thread can manipulate GUI objects. This leads to a hybrid model where worker
threads must send events to the main thread in order to change the GUI state or signal their termination.
Order of module loading
It's necessary for "use Wx" to happen after <use threads::shared>.
Sending events from worker threads
"Wx::PlThreadEvent" can be used to communicate between worker and GUI threads. The event can carry a shared value between threads.
my $DONE_EVENT : shared = Wx::NewEventType;
sub work {
# ... do some stuff
my $progress = new Wx::PlThreadEvent( -1, $DONE_EVENT, $progress );
Wx::PostEvent( $frame, $progress );
# ... do stuff, create a shared $result value
my $end = new Wx::PlThreadEvent( -1, $DONE_EVENT, $result );
Wx::PostEvent( $frame, $end );
}
The target of the event can be any "Wx::EvtHandler"
Receiving events from worker threads
"Wx::PlThreadEvent" is a command event and can be handled as such. The "->GetData" method can be used to retrieve the shared data
contained inside the event.
my $DONE_EVENT : shared = Wx::NewEventType;
EVT_COMMAND( $frame, -1, $DONE_EVENT, &done );
sub done {
my( $frame, $event ) = @_;
print $event->GetData;
}
Creating new threads
Creating new threads from event handlers works without problems except from a little snag. In order not to trigger a bug in the Perl
interpreter, all event handler that directly or indirectly cause a thread creation must clean @_ before starting the thread.
For example:
sub OnCreateThread {
my( $self, $event ) = @_; @_ = ();
threads->create( ... );
}
failure to do that will cause "scalars leaked" warnings from the Perl interpreter.
perl v5.14.2 2007-03-16 Wx::Thread(3pm)