Function SendMessage not work

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  • Function SendMessage not work

    Hello everybody

    i can't use WM_SendMessage() - WM_SendMessageNoPara() - WM_SendToParent() functions. I have this code:

    Source Code

    1. static void _cbDialog(WM_MESSAGE * pMsg)
    2. {
    3. int NCode;
    4. int Id;
    5. .
    6. .
    7. .
    8. case MY_MESSAGE:
    9. __NOP();
    11. break;
    12. }
    14. hMyHandle = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog, WM_HBKWIN, 0, 0);
    15. WM_SendMessageNoPara( hMyHandle,MY_MESSAGE);
    Display All


    but I can not get into the branch MY_MESSAGE.
    But to go in there if I can use the function WM_BroadcastMessage()
    I ask for help to solve the problem
    thanks to all
    Andrea

  • Thanks Adrian,

    but I do not undersand. I have this code

    Source Code

    1. static void _cbDialog(WM_MESSAGE * pMsg) {
    2. int NCode;
    3. int Id;
    4. .
    5. .
    6. .
    7. case WM_MY_MESSAGE:
    8. __NOP();
    9. break;
    10. .
    11. .
    12. .
    13. }
    15. void main()
    16. {
    17. hMyhandle = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog,WM_HBKWIN, 0, 0);
    18. mess.MsgId = WM_MY_MESSAGE;
    19. hButtonHandle = WM_GetClientWindow(hButtonHandle);
    20. mess.hWinSrc = hMyhandle;
    21. mess.hWin = hButtonHandle;
    22. WM_SendMessage(hButtonHandle, &mess);
    23. }
    Display All


    Using the breakpoint, i can't log in WM_MY_MESSAGE branch
    thanks for any help
    Andrea

  • Hi Adrian,

    I would like to be able to send a message to a callback when i touch a button. i tried several test. For example, I have 2 file.c
    FILE_1

    Source Code

    1. void _cbDialog_1(WM_MESSAGE * pMsg) {
    2. int NCode;
    3. int Id;
    4. .
    5. .
    6. switch (pMsg->MsgId)
    7. {
    8. case WM_MY_MESSAGE:
    9. __NOP();
    10. break;
    11. .
    12. .
    13. }
    15. WM_HWIN main (void)
    16. {
    17. .
    18. .
    19. hFile1 = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog_1, WM_HBKWIN, 0, 0);
    20. }
    Display All


    FILE_2

    Source Code

    1. void _cbDialog_2(WM_MESSAGE * pMsg)
    2. {
    3. .
    4. .
    5. case ID_BUTTON_2: // Notifications sent by '2'
    6. switch(NCode)
    7. {
    8. case WM_NOTIFICATION_CLICKED:
    9. break;
    10. case WM_NOTIFICATION_RELEASED:
    11. hButton2 = WM_GetDialogItem(hFile2, ID_BUTTON_2);
    12. mess.MsgId = WM_MY_MESSAGE;
    13. mess.hWinSrc = hFile1;
    14. mess.hWin = hButton2 ;
    15. WM_SendMessage(hButton2, &mess);
    16. break;
    17. }
    18. }
    Display All


    the button handle are global variables. When I get to the line WM_SendMessage, I expect to get at the case WM_MY_MESSAGE, but this does not happen. I hope I explained correctly
    thanks Adrian
    Andrea

  • Hello Andrea,

    I can help you implement this in one way. As I try to help you, please do NOT change the way you are going to do that.

    Actually it should be already working if you would have implemented what I told you in my first post according to your first post. Please compare your first 2 posts. You should be able to see what I am trying to tell you.

    Best regards,
    Adrian

  • hi Adrian,

    Thanks, I solved my problem.
    It 's important to use WM_GetClientWindow. But I was not yet clear the difference between WM_GetClientWindow and WM_GetDialogItem().
    I think I have to study a lot more
    Thanks
    Andrea