Joseph,

No the assign method actually does the assignment of the value to the property. Assign methods receive a parameter named vNewVal which has the vlaue being assigned in it. When you create an assign method it starts out like this;

LPARAMETERS vNewVal
* To do: ...

THIS.PropertyName = vNewVal

So for the RGB example we could;

* Outside code
Thisform.BackColor = "Light Grey"

* Form's BackColor assign method
LPARAMETERS vNewVal

DO CASE
   CASE vNewVal = "Light Grey"
      This.BackColor = RGB(192,192,192)
   CASE vNewVal = "Blue"
      This.BackColor = RGB(0,0,255)
   ...
ENDCASE

This code will allow other code to assign a backcolor to the form using the color's name in English and simply assigning the name to the backcolor property. The assign method fire and can handle the conversion of the color name to the appropriate RGB() function call.

The access methods work similarly, for example;

* Form Backcolor access method
LOCAL lcReturn
DO CASE
   CASE Thisform.backcolor = RGB(192,192,192)
      lcReturn = "Light Grey"
   CASE Thisform.backcolor = RGB(0,0,255)
      lcReturn = "Blue"
   ...
ENDCASE
RETURN lcReturn

In this case code that;

?Thisform.backColor

will return "Light Grey" or "Blue" or whatever.