int GlobalVariablesDeleteAll	(	string	prefix_name = null,
		DateTime	limit_data = default(DateTime)
	)

Deletes global variables of the client terminal

Parameters

prefix_name	Name prefix global variables to remove. If you specify a prefix NULL or empty string, then all variables that meet the data criterion will be deleted
limit_data	Optional parameter. Date to select global variables by the time of their last modification. The function removes global variables, which were changed before this date. If the parameter is zero, then all variables that meet the first criterion (prefix) are deleted

Returns

The number of deleted variables

If both options are equal to zero (prefix_name = NULL and limit_data = 0), then function deletes all global variables of the terminal.
If both parameters are specified, then it deletes global variables corresponding to both parameters