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Thread: Varaint Data Type From Vb

  1. Dec 19th, 2002, 09:47 PM #1
    Cmdr0Sunburn
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    Varaint Data Type From Vb

    okay, how long in bytes is a VB VARIANT, and what are its parts, basicly i want to create a Varaiant type in asm/c++, or at least be able to accept varaints from vb in dlls etc, first i need to know how its structured.
    I know a lot oF Vb, expert in C++, and i think in assembly.
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  2. Dec 19th, 2002, 11:00 PM #2
    kedaman
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    just something i bookmarked quite a while ago, hope you find it useful:
    http://msdn.microsoft.com/archive/de...n_article4.asp
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  3. Dec 19th, 2002, 11:26 PM #3
    made_of_asp
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    Search for data type _variant_t and _bstr_t.

    I think they come with ole2.h or oleaut2.h.
    VS.NET 2003

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  4. Dec 21st, 2002, 09:49 AM #4
    CornedBee
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    VARIANT and VARIANTARG are the two aliases of the structure behind VBs Variants.

    Basically one unsigned int16 that can be set to one of many constants (the variable type, VT_*), three unsigned int16s as padding and for internal use and one large union.

    _variant_t is a class that simplifies usage of VARIANTs.
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