All config files will be looked into, in the order of their
defined level. A higher level means a higher priority. The
first occurrence of the variable will be returned here.
@param out_ pointer to the variable where the value should be stored
@param cfg where to look for the variable
@param name the variable's name
@return 0 or an error code
Get the value of a long integer config variable.
All config files will be looked into, in the order of their defined level. A higher level means a higher priority. The first occurrence of the variable will be returned here.
@param out_ pointer to the variable where the value should be stored @param cfg where to look for the variable @param name the variable's name @return 0 or an error code