somFindMethod - Parameters
receiver (SOMClass)
A pointer to the class
object whose method is desired.
methodId (somId)
An ID that represents the
name of the desired method. The somIdFromString function can used
to obtain an ID from the method's name.
m (somMethodPtr)
A pointer to the location
in memory where a pointer to the specified method's procedure should be
stored. The method stores a NULL pointer in this location (if the
method does not exist) or a value that can be called.
rc (boolean)