Hello I am doing masters project where i need to use pharo and freeCAD. In my work i need to send some parameter to freeCAD which can create a cube or other type shape. After getting some idea i write a C++ code that can send command to freeCAD to create a cube.step file so that means i have the file for cube now. Just i need to compile and send some parameter to through command line. below i have attached my screenshot to show the gui. a simple gui to send command line command using LibC function. where i can compile and execute than run my box or other file using pharo gui. But my supervisor want me to send parameter from pharo to that file which i dont know how to do. if i can send the parameter to that file or exe than my work complete. as my limition is c++ file cause c++ file can hand freeCAD command. Also i know if my file is c file than maybe i can use ffi . Now i need suggestion is there any way to do ? need your kind advice . Thanks <http://forum.world.st/file/t372453/a.png> -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html