VFP 5.0a
I created two listboxes on a form with drag & drop capabilities.

If the user drags an item from one listbox, but drops it back in the same listbox they dragged it from, I don't want anything to happen.

In the following code, I am trying to say, "If the oSource object is the same object we are dropping on, do nothing."

Can't objects be compared with the = sign?

In the DragDrop event of each listbox I have the code:
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LPARAMETERS oSource, nXCoord, nYCoord

if oSource != this
oSource.dblclick()
endif