Hi,
I have a program made with WxPerl which has the main window hidden and which
can be shown using a tray icon.
I want to avoid opening that program twice, so after opening it, I want to
test if the program is already opened, and if it is, I want to show its
hidden main window and if it is possible to set the focus to a certain
object.
I use File::Pid for testing if the program is already open, but I don't know
how to switch to the process with a certain PID and I also don't know how to
unhide a Wx frame from another process.
Can you give me some hints?
I think I would need to send a certain signal to that process using kill()
and handle that signal using $SIG{} and do what I want then.
But I don't know what signal to use for things like these.
I have tried to trap signals like HUP and others, but they all kill the
running program.
Octavian
