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ft_reqlist C functions errorinfo Area in which detailed information is stored if an error is encountered (see the section on “ft_err” on page 15). The specification of this parameter is optional. If you do not require any more precise error information then you can specify the value NULL for errorinfo. options The specification of the options parameter is optional. If the value NULL is specified then message activity at the program interface is compatible with that of the previous program interface. Alternatively, it is possible to specify the ft_options structure (see the section “ft_options” on page 16) to activate the new openFT message number scheme and the extensions to the function. Return value n Number of entries found (n Ï 0). If n is greater than listlen, the first listlen entries are stored in list. -1 Error. The error type is stored in errorinfo. 34 openFT V11.0 - C Program Interface