How to press a button when a website content updated

Beginners
1

I’m an absolute beginner with Touchdesigner and I’m not able to solve the following:

I use the webclient DAT to read the source code of a website and refresh it every 2 seconds with the timer CHOP.

I would like to check if there is updated content. As long as the content doesn’t change, nothing happens, but when there are new content changes, I want to trigger a button on/off once. How can I do that?

I have tried the following Ops combination, but still don’t know how to press the button.

Would like to know how to make it. Thanks a lot

ask
ask1857×636 105 KB

2

You can use a DAT Execute DAT | Derivative after your Evaluate DAT to execute a script whenever the contents of the eval DAT changes.

the script can be something like:
op("mybutton").click()

3

thanks for your reply.

I have tried putting op(‘mybutton’).click() to all def in datexec DAT. But it doesn’t work. the button pressing still follows the timer Chop but not any of the def in datexec DAT.

Any idea? I do need to solve this issue. thanks a lot.

4

here’s a working example.
Change the text in the DAT and notice the button being clicked on each change.
dat_execute_demo.tox (1.9 KB)

1 Like