Fellow Monks,

My mind is drawing a blank here so please help by providing the obvious pointers that I've clearly overlooked! A look through "Mastering Perl/Tk", even the chapter on "Interprocess Communicationwith Pipes and Sockets" hasn't helped...

I have a need to update the items on a Perl/Tk Canvas based on input being received from a TCP socket (background: trying to add a nice(r) frontend to an existing command line tool).

Basically I need to increment or decrement the height of some bars (drawn as rectangles or a series of stacked horizontal lines - not sure which is best yet) and update some text based on what is coming in the socket.

I'm having problems figuring out where to bind any callbacks to widgets/objects so that I can redraw/adjust my lines/rectangles/text.

Don't worry about what's coming in the socket - that's already working. Basically it's a count of running processes, number of things seen, etc, and everything works in the command line version. But I want pretty graphs!! With histogram bars that change height to represent the state of the various background tasks, etc, being represented by the data coming in the socket! :)

fx, Infinity is Colourless

In reply to Updating Perl/Tk Canvas based on network input by fx

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