How to build a canvas widgetin outsystems?
Application Type
Traditional Web, Reactive
Service Studio Version
11.51.7 (Build 58118)

I hope to build a canvas widget to let user draw a picture, and i saw a introduction as the image.

Any tutorial about how to do it?

This is for the main part a javascript question, so i will refer you to javascript tutorial.

I put a little example of canvas code as attachment, with a html page that serves as example.

If you understand this example, then we can talk how to put it in Outsystems. A little hint: put it in a webblock instantiate it in the OnReady (sometimes you need to instantiate it in the OnRender event.

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