Call this function to paste the OLE item in dataobj into this rich edit document/view.
The framework calls this function as part of the default implementation of QueryAcceptData.
This function determines the type of paste based on the results of the handler for Paste Special. If cf is 0, the new item uses the current iconic representation. If cf is nonzero and hMetaPict is not NULL, the new item uses hMetaPict for its representation.