GB_SUBST_CALLBACK
Syntax
typedef void (*GB_SUBST_CALLBACK) ( int index , char **str , long *len );
This is the the type definition of the callback used by the GB.SubstString
function.
The callback will receive the following parameters :
- index is the index of the value to substitute.
- str must receive the string to substitute.
- len must receive the length of this string.
If you need, you can use the
GB.SubstAdd function instead of using
str and
len
for returning the string to substitute.