Hi, why not to switch from GTK+ to ROOT GUI classes? http://root.cern.ch/root/html/GUI_Index.html which are multipaltform (*nix,windows) Regards. Valeriy > Hey this sounds great. I was wondering if this will work on Windows > machines also. I'm developing everything on *nix, but later on I'll > probably have to port it to Win at one point or another, so I'd like to > know if there is a good way of implementing this too. > > thnx for the supports so far. > > > > On Tue, 24 Feb 2004, Brett Viren wrote: > > > Hi Dejan, > > > > Dejan Nikic writes: > > > SITUATION: I have a GTK+ gui application that I wrote, and what it does > > > is gets some user input and creates a root macro file out of it and it > > > starts root and runs that macro using execlp() function. > > > > > > PROBLEM: Every time I start root it closes my application and root runs > > > by itself just fine. What I want to do is have root run and then I pass > > > it the user input from GTK, without having to start root every time and > > > have root close my application. > > > > > > > I think what you are missing is a "fork". The exec family of > > functions replaces the current executable with the new one. > > > > Assuming you need to do any on going communication with root you can > > set up a pair of pipes connected to root's stdin/stdout. Keep reading > > root's stdout file descriptor until you see the "root [xx]" prompt, > > then print a new command to its stdin. > > > > If you don't care about talking with the root subprocess at all, then > > it is even easier to use the system() function to just spawn it off in > > the background and forget about it. > > > > Also, you might want to exec "root.exe" instead of "root". The root > > program proper just does some small things that doesn't need the full > > set of libs. For example, it handles any command line options asking > > for help and throws up the splash screen. It then turns around and > > then exec's "root.exe" for all the real work. > > > > -Brett. > > > >
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