OLE with WordBasic and Inserting a Null Value

Keywords:    OLE null

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Question:

I'm having a problem with OLE between Winbatch and Microsoft Word. You basically use the WordBasic macro lang when invoking methods via OLE. For example,

        WordObj = ObjectOpen("Word.Basic")
        WordObj.FileOpen("c:\a.doc")

This simply opens up a document within Word. However, the FileOpen macro/method contains many other parameters (in additon to the file to open). Sometimes I wish for one of these parameters to be NULL. I can't seem to get past this problem. For example, this doesn't seem to work:

        WordObj.FileOpen("c:\a.doc", 1, 1, 1, , , 0)

I get the error "Type mismatch".

The problem seems to be with the null parameters. This doesn't work either:

	WordObj.FileOpen("c:\a.doc", 1, 1, 1, "", "", 0)

I can't seem to pass a null value via OLE to a Wordbasic macro/method.

What am I missing? I can't find a syntax that works.

Answer:

You could try just stuffing a 0 in there and hope it work. It if it does not, try...

	mynull=BinaryAlloc(10)
	BinaryPoke(mynull,0,0)

and use the mynull variable where you need a null in the parameter string.

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Article ID:   W13671

Filename:   OLE and Word Basic.txt