Dhx.form.events.input not working soundly for CJK characters

The problem is similar as https://github.com/w3c/uievents/issues/202. I find some solutions on raw javascript using events.compositionstart and events.compositionend. But how to on dhx.form? (Latest DhxSuite 8.3.0)

In the dhx.Form there is no input event.
Only the keydown:

It fires correctly before the composition input.

Could you please, clarify your usecase and the desired behaviour?

hi semantik,
The input event is of the input control, not of the form. https://docs.dhtmlx.com/suite/form/api/input/input_input_event/

For CJK character, an IME(input method editor) is used to input, similar as emoji. You should enter several keys on the keyboard, then the represented speical character will be shown in the editor.

In my case, I use a form input to enter characters in markdown format, in another layout cell shows the its preview simultaneously.
In below example, the alphbet characters gdgdgd are not expected.