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I thought the value of reco should be RECO_DRAG when I dragged sth. in my richedit, but in fact it always RECO_COPY. Is that normal or I had made mistakes?

KnowNothing
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1 Answers1

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Note: I work for Microsoft.

Thank you for bringing this to our attention. We've filed a bug on the following issues surrounding this. It may get fixed someday, but we're calling this a documentation bug. RECO_DRAG doesn't appear to be supported at any level, and RECO_DROP appears to be supported only in QueryAcceptData.

The documentation update bug concerns the following functions (of note: QueryAcceptData also uses a similar parameter but it's documented properly).

Page: IRicheditOle::GetClipboardData http://msdn.microsoft.com/en-us/library/windows/desktop/bb774341(v=vs.85).aspx

Change: Update the reco parameter description, removing the table and just say that it's not used.

Page: IRichEditOleCallback::GetClipboardData http://msdn.microsoft.com/en-us/library/windows/desktop/bb774315(v=vs.85).aspx

Change: Update the reco parameter description, removing everything but RECO_COPY and RECO_CUT. This means removing RECO_DRAG, RECO_DROP and RECO_PASTE.

Rob
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  • Thx for your answer but,why RECO_DRAG isn't supported? I intended to do different things when users' operation was drag or copy,for example, I only update data in clip board when user copy but not drag sth. I think it is useful. – KnowNothing Nov 28 '13 at 02:26