Copy and paste behavior is functionally similar to dragging and dropping; in both cases data is copied to the Clipboard. Though the Tool Palette framework handles basic copy and paste functionality, in some situations your application may wish to participate in the operation. For these cases, you implement the IAcadToolCopyPaste interface. The framework queries your IAcadStockTool COM object to retrieve your IAcadToolCopyPaste interface pointer. See the ObjectARX Reference for tips on implementing the IAcadToolCopyPaste::Copy() and IAcadToolCopyPaste::Paste() methods.