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No reaction on screen whe I touch button widget

kdok .1
Associate II

Hello

I am trying to use stemwin, but I got a problem.

I couldn't find solution.

I followed this instruction.

https://community.st.com/s/article/FAQ-GUI-on-STM32F469-Discovery-boards-using-CubeMX-and-STemWin

It works well.

and I tried to add touchpad sensor. So I used BSP Driver and set I2C, Timer.

after I created small button using gui builder.

when I cliked the button in debugger mode, it stopped WM_NOTIFICATION_CLICKED case correctly.

but the button on the screen, it didn't show any changes.

I tried checkbox, It didn't show check sign too .

I would appreciate if someone help me.

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