Rif.: Using GetCtrlMenuAttribute(.....)

[Kobi_K]

Hi ,

i'm trying to use GetCtrlMenuAttribute , i want to see if a menu item is checked and this is my simple func

void CVICALLBACK SetLangHeb (int menuBar, int menuItem, void *callbackData,int panel)

{

  int check = -1;

  int status;

  status = GetCtrlMenuAttribute (panel, menuBar, menuItem, ATTR_CHECKED, &check);

  if ( check == 0)

  {

  printf("checked");

  }

}

but it doesn't work..... am i doing something wrong ?

[Wolfgang]

1) I would assume the opposite behavior:

Description:  Specifies whether a menu item has a checkmark.
0 = Does not have check mark
1 = Has check mark

2) What do you mean by 'does not work'? You can use the debug mode, set a breakpoint and check the value of a variable, including status.

Wolfgang

[RobertoBozzolo]

As far as I can see you only need to reverse the logic of your code:

  status = GetCtrlMenuAttribute (panel, menuBar, menuItem, ATTR_CHECKED, &check);

  if ( check != 0)  {

         printf("checked");

  }

Please remember that this command gets attributes of menus owned by specific controls (e.g. a table): not all controls can own a menu. To retrieve attributes of normal menu on a panel you must use GetMenuBarAttribute.

[Kobi_K]

Dont mind the

if ( check != 0)  {

         printf("checked"); 

  }

my problem is that my function returns -139.....

the function fails...it doesn't update my check var.... 

[Wolfgang · Accepted solution]

If you use the help available with CVI you can read:

-139

UIECtrlDoesNotHaveMenu

Controls of the type passed do not have a menu.

that's exactly the earlier comment of Roberto...