Call By Reference
Call By Reference or Pass By Reference is a technique where arguments that are passed into a procedure or function are the actual memory resident values from the calling procedure. When the value of an argument passed by reference is changed in the child procedure, the value of the argument in the parent procedure is also changed, since technically they are the same arguement.
The following code passes a reference to the argument sName in to the procedure DoCall.
String sName Procedure DoCall String ByRef sName showln "name:" sName Move "B" to sName End_Procedure Move "A" to sName Send DoCall(&sName) showln "name:" sName
The output window would display: