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Text Object Model/RichEdit

Posted on 2000-03-22
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Last Modified: 2013-11-20
In the Platform SDK the Save method is defined as (defined in TOM.H)

STDMETHODIMP ITextDocument::Save(
  VARIANT *pVar,
  long Flags,
  long CodePage
);
Parameters pVar  [in] The save target. This parameter is a VARIANT, which can be a file name, an IStream, or null.

My question is: How the heck do I get an IStream in a VARIANT so ITextDocument::Save will save to my stream?
If I use a BSTR for file name it works fine.

Thanks,
Tony.

Here's my code:
      ITextDocument *pTextDoc;
      GetIRichEditOle()->QueryInterface(IID_ITextDocument, (void **) &pTextDoc);
      IMyTextDocument *pMyTextDoc = new IMyTextDocument(pTextDoc);
     
      IStream *pStream = NULL;
      CreateStreamOnHGlobal( NULL, TRUE, &pStream);

      VARIANT Var;
      VariantInit(&Var);
      Var.vt = VT_UNKNOWN; //BSTR okay
      Var.punkVal = pStream; //"C:\\Test.rtf" okay

      pMyTextDoc->Save(&Var, 0, 0);

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Question by:Tony_Sebastian
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2 Comments
 
LVL 1

Accepted Solution

by:
yarond earned 300 total points
ID: 2660282
Just a guess, but there are two things you might want to try.
1. try passing it as VT_DISPATCH using pdispVal.
2. try not allocating your IStream as HGlobal. Maybe there is some sort of a memory reallocation problems here. Unlikely, but might be worth a try.
0
 

Author Comment

by:Tony_Sebastian
ID: 2661162
I'm using streamin and streamout, I initially wanted to use TOM because I saw the HTML flag and thought it would convert the RTF to html, but it doesn't, you have to stream HTML in to use the flag.
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