How can I invoke request_redraw() from within the Slint code?

[bob-anderson-ok]

The order in which Slint process gui changes is apparently not necessarily in the order implied by my code. I have a line that updates a text element, then executes a callback. Sometimes the text gets redrawn first, then the callback runs, and sometimes the reverse happens. I would like to control that by asking for a redraw between my two lines of code. I see references to request_redraw(), but from within my AppWindow, that function cannot be found, or I simply can't figure out the magic handshake.

Bob

[ogoffart]

request_redraw should be invoked automatically if any of the property binding used for rendering becomes dirty.
And redraw can't happen between two lines of code because it needs to happen at specified point in the event loop.

Maybe it would be easier to answer the question if you had some sample code.