Synopsis:

        task_getpid(arg_num)

Arguments:

     arg_num  - The argument number to return.

Description:     This call returns the value of the argument number arg_num passed to the task by the parent task through a call to task_spawn(), task_exec() or task_chain().

Arguments are numbered from 0 through to 15, where argument 0 returns the name of the calling task (i.e. the name of the .TEX byte code file).    Arguments 1 through to 15 are the arguments passed the call to task_spawn(), task_exec() or task_chain().    If an attempt is made to get the value of an argument that was not passed by the parent task then the function will return an empty string “”.

Return Value:

Will return the name of the TEX byte code file if argument 0 is specified, otherwise will return the argument 1 through to 15 passed to the task from the parent task (or an empty string “”).