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ASega
ASega
Associate
August 22, 2019
Question

Changing widgets on runtime

  • August 22, 2019
  • 2 replies
  • 903 views

Hi

I am using TouchGFX with IAR on STM32F746NG discovery.

I have a code that tries to change text or button color , from Model.cpp (tick) -> Presentor.cpp -> View.cpp , the function in view.cpp calls xxxText.changeColor and nothing happens.

Important note : It is working if I change color during the first "tick" call , but if I do it after for examples 1000 "tick" calls it is not working. Any idea what the problem could be ?

Thanks

Anat

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2 replies

ASega
ASegaAuthor
Associate
August 22, 2019

Hi, just solved this with "invalidate".

Martin KJELDSEN
Martin KJELDSEN
Principal III
August 22, 2019

You got it. Some methods invalidate implicitly, while others don't. I guess that's something to learn.

e.g. methods like setColor(), setXY(), setHeight() do not invalidate. A method like moveTo() does.

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