wpDraggedOverObject Return Value - rc

rc (MRESULT) - returns

Return code.

DropIndicator (USHORT)

Low-word.

This code is one of the DOR_* constants, such as DOR_DROP or DOR_NODROP, which indicate whether a drop is allowed on the current target.

DropOperation (USHORT)
High-word.

The current drag operation code. Examples are DO_COPY, DO_MOVE or DO_LINK to indicate that the drag action over this target should be a copy, move, or a link.

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