Copy it to a text file.

You want to print your code onto paper, correct ?

Or just open the .pde file with a (good) text editor... and print from there.

This is not a dumb question.

And while you can copy and paste the code into other plain text editors, you then lose all of the syntax coloring and other nice formatting that Processing does for you in its IDE.

There seems to be a bug in the printing of a sketch. I tested it a little bit and discovered that when the cursor is at the top of the source code file, the printing works correctly. If it is at the last line, then you get mostly blank output. I haven't done extensive testing about other cases.

So a short-term workaround to the OP's question is to make sure that your cursor is at the top of the file before printing a sketch.


.andy