hook_<libraryPrefix>_visibleElementarySymbol()
This function identifies whether an elementary symbol is visible.
Synopsis
bool hook_<libraryPrefix>_visibleElementarySymbol(string
                sDpe);
Parameter
| Parameter | Description | 
|---|---|
| sDpe | Name of the datapoint element to which the elementary symbol references. | 
Return Value
TRUE = Elementary symbol visible.
FALSE = Elementary symbol not visible.
Description
This function determines whether an elementary symbol is visible (by default, all are visible).
In the return value, call the function hook_<LibName>_hasDpeAnActiveAdress() so that only the symbols with a valid address to a data point element are visible.
Note that if a rule has already been created for this elementary symbol, the rule is then combined with this function by using an AND connection.
.You can find the function in the stdlib_hook_project.ctl under wincc_oa_path/Stdlib_3.20/scripts/libs/
bool hook_visibleElementarySymbol (string sDpe, string sUser="")
{
  //  if(sUser=="")
  //    sUser = getUserName();
  //return hook_hasDpeAnActiveAdress(sDpe);
  return true;
}