>>Methinks you can still save the name of the image control in a property. For example, in some property (for an example, I will use a form property, .oImageControl), save the value: "ThisForm.CntMyClass.Image1", if that is where the image will be accessed.
>
>I see it should be done at design time. I will have to change all my forms and controls that reffers to commands properties. What if a control, p.e. a checkbox, has something like this:

Thisform.Command1.Visible = This.Value

??. I will have to change this code, won't I?. It is desirable just to add the image class at runtime without making any changes to the existing code

I suppose the "Visible" part was just an example for possibly much more elaborate code. (Because in this particular case, you can change it directly,without a method.)

In the Image class, you can define a method to do anything. For example, to change the .Visible property:

* Method ImageClass.ChangeVisible
lparameters lVisible
This.Visible = lVisible

And to call this from outside:

loImage = eval(...) && as before
loImage.ChangeVisible(.T.)
...
loImage.ChangeVisible(.F.)