How can I send a command "display none 17" from inside a ULP?
I'm trying to create a ULP that will automatically generate a DXF file with only specific layers turned on.
I want these hard coded inside the ulp.
I'm basicly modifying the DXF.ulp to only generate layers 17,20,31,121
Hi Leonard,
I suspect you may need to have a script file that sets the visible layers and execute the script from the ULP at the relevant point.
If you have eg. make_my_layers_visible.scr with the line
DISPLAY NONE 17 20 31 121
in it and then in the ULP use,
system("SCRIPT ' "make_my_layers_visible.scr" ';");
I haven't tried this so no guarantee it'll work like this but it's what I'd try if it was me 
HTH,
Daniel Wainwright wrote:
Hi Leonard,
I suspect you may need to have a script file that sets the visible
layers and execute the script from the ULP at the relevant point.
If you have eg. make_my_layers_visible.scr with the line
DISPLAY NONE 17 20 31 121
in it and then in the ULP use,
system("SCRIPT ' "make_my_layers_visible.scr" ';");
I haven't tried this so no guarantee it'll work like this but it's what
I'd try if it was me
no, that won't work. The system command launches other applications
outside of eagle. It can not control the running instance of eagle.
scripts or command strings can only be executed using the exit
command.
--
Lorenz
Thanks for pointing that out, seems rather obvious in hindsight. 
How does control return to the ULP after eagle executes the command given in the exit() function though?
soldersplash wrote:
How does control return to the ULP after eagle executes the command given in the exit() function though?
It doesn't. 
Why not do things the other way around and run a script first and call the ULP from that, something like:
display none 17;
run dxf.ulp;
display last;
You could even assign that to a button with the menu command. Or did I completely miss the point?
soldersplash wrote:
How does control return to the ULP after eagle executes the command given in the exit() function though?
It doesn't.
Why not do things the other way around and run a script first and call the ULP from that, something like:
display none 17;
run dxf.ulp;
display last;
You could even assign that to a button with the menu command. Or did I completely miss the point?
