Overview:
This function is executed when a message is sent to this object by the sendmessage or senddelayedmessage commands. Each command may pass up to three user-defined parameters.
Access variables:
current: the current object
msgsendingobject: the object that sent the message
msgparam(1): the message's first value parameter
msgparam(2): the message's second value parameter
msgparam(3): the message's third value parameter