Get ink information about whiteboard

[cracker0dks]

Hey, I dont know the inkML format this should do the trick: just save (export) the whiteboard as JSON

then take a look inside the file. You will see every stroke like this:

you would need to read in the JSON file and convert just the pen strokes to your format.
good luck :)

[nunores]

I see! I saw that you have undo/redo features and from what I understand you are grouping these mini-strokes into bigger strokes through interpolation, and these are the ones deleted when undoing. Are these groups stored anywhere?

[cracker0dks]

It is only grouped from mouse down to mouse up. What you see in the screenshot above is already a "grouped stroke". We dont have "mini-strokes".
The interpolation is only done inside one stroke to make it smooth :)