Outputting console data from a process to gui in wxwidgets

I'm running a lo开发者_Go百科ng process in the background. I've managed to output the console data to gui. But the problem is that, the data is returned only after the process is finished. But I need to display the data at realtime. ie, I need to display the data, every time it produces some output on the console. I'm running the process with in my gui from a seperate thread.

I mean, it would be like building a gui for the ping command, where output is displayed on console after each packet is send, ie at realtime. I just need to redirect that to gui, in realtime. I'm implementing the gui in wxwidgets. Any help would be greatly appreciated.

Thanking You..

Jvc

Is the output you wish to display generated in a separate process from the process running the GUI? Or in a separate thread in the same process?

I ask because most people, when they ask this question, mean a a separate thread. Since you have tagged your question with "process" I will assume that is what you mean.

You need some inter-process communication. There is a bewildering variety of techniques to do this. Personally, I always use sockets.

wxWidgets has simple, easy to use socket classes wxSocketClient and wxSocketServer.

The background process is probably not running wxWidgets, so you will need something else there. I reccomend boost::asio. I know it looks intimidating, but in fact the tutorial code can be used as is.

There is a lot more to be said, but I risk straying away from the point, since there are so few details in your question.

You can have an output queue protected by a wxMutex. The thread doing the computation writes to the queue, then signals the GUI thread using wxQueueEvent with a custom event to let it know that the thread is not empty. The GUI thread then reads the queue and outputs the data.