Button not getting released after touching when using stem win library

[goutham]

I created a button widget with stem win library. The button click is detected but button release is not happening. I tried using some demo programs there it is working. I have attached a basic program which shows when a button is pressed and released. I am testing this on STM32F429 discovery board.

 

[Imen.D]

Hello @goutham,

You should enable clock for CRC module: __HAL_RCC_CRC_CLK_ENABLE();
The CRC must be enabled before calling GUI_Init, if not STemWin will be not function.

This is mentioned in the "GUI initialization" section of AN4323: "Note that before initializing the GUI, the CRC module (in RCC peripheral clock enable register) should be enabled".

Hope this helped you!

Imen

[goutham]

It was already enabled in main program

[goutham]

I got the solution from another link:https://community.st.com/t5/stm32-mcus-touch-gfx-and-gui/stemwin-button-not-getting-wm-notification-released-message/td-p/448740.

what I did is replaced a function which I added in attached file.

Replace the function in main program