TouchGFX: Backend communication to custom container text area (wildcard)

[H S]

Hello to everyone,

I was able to add a backend communication from a screen to other FreeRTOS task with a queue message and now I try the other way from the other task to the screen/view.

I add all the parts from the TGFX support site backend-communication to the model and so on, but I'm not able to access to this specific text area (wildcard) because it's a "protected member" of the custom container class.

Maybe it's just a easy problem but because of my poor C++ knowledge I don't find a solution for this problem.

How I get access to a protected custom container member (text area) which is placed on a screen?

Maybe someone can help me with some hints or code snippets.

Thank you in advance.

[TDahl]

Try moving the implementation of the notifyTemperatureChanged() function to the cpp-file.

mainScreenPresenter.hpp:

1. virtual void notifyTemperatureChanged(int newTemperature) ;

mainScreenPresenter.cpp:

1. void mainScreenPresenter::notifyTemperatureChanged(int newTemperature)
2. {
3. view.setTemp(newTemperature);
4. // ^ error: member access into incomplete type 'mainScreenView'
5.  
6. }

/Thomas

[H S]

Wuhuu, it works now!!

Thank you so much for your help Thomas. 8):thumbs_up:

[TDahl]

:thumbs_up: