I just spent a few hours trying to figure out how to start recording video when I press the shutter button (instead of taking a photo) but am pretty stuck.
My camera is a Canon IXUS240 - it's a touchscreen and has no physical video button (which is why I think I am running into a problem). None of the code I have written is working at all and I would really appreciate some help!
In Lua, you can try
If this works, we can add a workaround that allows the normal CHDK click('video') to work.
You might need to put some delay between the Press and Unpress above, like sleep(100)