WM_SetUserData - issue for widget of DIALOG

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    • WM_SetUserData - issue for widget of DIALOG

      Hello, everyone.

      There is a DIALOG with one BUTTON, that has ExtraBytes.

      After storing data to the BUTTON-widget with WM_SetUserData the function WM_GetDialogItem for get BUTTON-widget returns 0.

      Here is source-code:

      C Source Code

      1. #define Data_t long long
      3. #define TEST_FRAMEWIN (GUI_ID_USER + 0x00)
      4. #define TEST_BUTTON (GUI_ID_USER + 0x01)
      6. static const GUI_WIDGET_CREATE_INFO _aDialogTest[] = {
      7. { FRAMEWIN_CreateIndirect, "Main window", TEST_FRAMEWIN, 0, 0, 200, 200, FRAMEWIN_CF_MOVEABLE, 0x0, sizeof(Data_t) },
      8. { BUTTON_CreateIndirect, "Button", TEST_BUTTON, 100, 10, 80, 20, 0, 0x0, sizeof(Data_t) },
      9. };
      11. static void _cbTest(WM_MESSAGE * pMsg) {
      13. int test;
      15. switch (pMsg->MsgId) {
      17. case WM_NOTIFY_PARENT:
      18. switch (pMsg->Data.v) {
      20. case WM_NOTIFICATION_RELEASED:
      21. switch (WM_GetId(pMsg->hWinSrc)) {
      23. case TEST_BUTTON:
      25. GUI_MessageBox("Button works", "BUTTON", 0); // check if button works
      27. break;
      28. }
      29. break;
      30. }
      31. break;
      33. default:
      34. WM_DefaultProc(pMsg);
      35. break;
      36. }
      37. }
      40. void MainTask() {
      41. GUI_Init();
      42. WM_SetBkWindowColor(GUI_WHITE);
      44. WM_HWIN mainWin = GUI_CreateDialogBox(_aDialogTest, GUI_COUNTOF(_aDialogTest), _cbTest, WM_HBKWIN, 0, 0);
      46. WM_HWIN button = WM_GetDialogItem(mainWin, TEST_BUTTON);
      48. int readBytes;
      50. Data_t value = 1234567890;
      51. readBytes = WM_SetUserData(button, &value, sizeof(Data_t));
      53. //Data_t readValue;
      54. //readBytes = WM_GetUserData(button, &readValue, sizeof(Data_t));
      56. button = WM_GetDialogItem(mainWin, TEST_BUTTON); // here button is 0
      58. while (1) {
      59. GUI_Delay(100);
      60. };
      61. }
      Display All
      Best regards,
      Volodymyr.

      The post was edited 1 time, last by volodymyr ().

    • Hello,

      WM_GetUserData()/WM_SetUserData() is for simple windows.

      For widgets just use specific <WIDGET>_GetUserData()/<WIDGET>_SetUserData() functions.

      In your case it is BUTTON_SetUserData().

      Calling WM_SetUserData() for the button may have caused button-specific parameters to overwrite.

      Alex.

    • LexaGb wrote:

      Hello,

      WM_GetUserData()/WM_SetUserData() is for simple windows.

      For widgets just use specific <WIDGET>_GetUserData()/<WIDGET>_SetUserData() functions.

      In your case it is BUTTON_SetUserData().

      Calling WM_SetUserData() for the button may have caused button-specific parameters to overwrite.

      Alex.
      Thanks, Alex, you are right.
      Best regards,
      Volodymyr.