WM_HideWindow not hiding

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    • WM_HideWindow not hiding

      Hi guys,

      I'm working with IAR and STemWin to create an ui for an application of us, builded for an ST32F429-Discovery board.
      I've noticed a strange behaviour hiding/showing a widget, more specifically a button. Below my code:

      Source Code

      1. typedef enum {
      2. navigation_button_Previous = 0,
      3. navigation_button_Next,
      4. navigation_button_Max
      5. } typ_Navigation_Button_ids;
      8. void CP_UI_Window_show_Navigation_Button(
      9. //! Button identifier
      10. typ_Navigation_Button_ids btn_id,
      11. //! Show/Hide
      12. bool show
      13. )
      14. {
      15. if( btn_id == navigation_button_Previous )
      16. {
      17. if( show )
      18. {
      19. WM_ShowWindow( h_button_Navigation_Previous );
      20. }
      21. else
      22. {
      23. WM_HideWindow( h_button_Navigation_Previous );
      24. }
      25. }
      26. else
      27. {
      28. if( show )
      29. {
      30. WM_ShowWindow( h_button_Navigation_Next );
      31. }
      32. else
      33. {
      34. WM_HideWindow( h_button_Navigation_Next );
      35. }
      36. }
      37. // Apply changes
      38. GUI_Exec();
      39. }
      Display All

      This function is called every time the very first or very last widget of a "list" is reached, hiding the previous and next button respectively.
      The strange thing is that after this "sequence" of actions, shown->hidden->shown, I'm not able to hide the button one more time. Debugging, the program reaches the right call and it seems to run the WM_*() function, but nothing changes.

      Hope anyone can help me,
      Many thanks

      Andrea