If I am reading your question correctly, All you need to do is make a Procedure for the event you want to call.
PROCEDURE Init
.
.
.

If you are talking about raising events like you would do in VB, VFP doesn't allow you to truly raise an event but you can fake it with an assign method.

DEFINE CLASS xx AS Custom

MyProp = .F.

PROCEDURE MyProp_Assign
LPARAMETERS uNewVal

.
.
.
This.MyProp = uNewVal

RETURN