Hi, I use fltk (C++ graphical interface) to create an electronics design package. I created a list of objects and placed them on a window. My problem is how to save the file, I think to create a list in memory for the objects placed on the sheet and store them in a file. I think (not sure of course) that xfig for example uses this procedure ? Please whould you like give me how to do it or where can I find it a simple example or doc. thank you bela