Thank you, Paul! I've just checked these variables and I think I found the path to solve my problem (Really to make an improvement to my software) $vpt = [ 307.88, 422.79, 929.94 ]; $vpr = [ 86.50, 0.00, 16.60 ]; $vpd = 2973.77; My program can send keystrokes to OpenSCAD. I make this all the time. I need to send to OpenSCAD the next keystrokes: "Ctrl+T" to copy to clipboard $vpt value; "Alt+E" and "Y" to copy to clipboard $vpr value. and "Alt+E" and "W" to copy $vpd. After each keystroke, I need to take the clipboard values inside temporal variables in my software. When I need to restore the values I save my .scad file that starts defining again the values. $vpt = [ 307.88, 422.79, 929.94 ]; $vpr = [ 86.50, 0.00, 16.60 ]; $vpd = 2973.77; The only worry about this technique is if there is going to have problems with other languages for the keystrokes. If there are problems, I can make these keystrokes configurable, I think. I'm going to try this. Thanks again, Paul! On 26/07/2019 20:22, Torsten Paul wrote: > On 26.07.19 19:33, Juan C.Cilleruelo wrote: >> If it's possible without close and reopen OpenSCAD. > For giving a specific viewport setting when loading a file, > you can include the $vpX variables to setup a fixed viewport > on preview/render. > > The saved state is Qt internal, I don't know what the > format is and if it can/should be driven from outside. > > That said, there's an (experimental) InputDriver for DBus > which allows external programs to interact with a running > OpenSCAD. But so far that is only available on Linux. > There might be a way to get DBus working on Windows, but > I have never tried. > > ciao, > Torsten. > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org