This function should be used to get the entry point of a function knowing the name of the function. The entry point should not be treated as a numerical value rather as a handle and to pass it to functions like scriba_CallArgEx().
long scriba_LookupFunctionByName(pSbProgram pProgram,
The return value of the function is the entry node index of the function named or
zero if the function is not present in the program.