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Thread: NULL but in VB

  1. Apr 22nd, 2002, 08:50 PM #1
    filburt1
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    NULL but in VB

    The documentation for some C++ API calls uses NULL for some arguments. Since Null in VB isn't the same as the NULL constant, what should I use to substitute it?

    VB Code:
    1. GetDC(NULL) = GetDC([i]what in VB?[/i])
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  2. Apr 22nd, 2002, 09:28 PM #2
    WorkHorse
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    Chr$(0)

    I can't think where that would not be read as Null.
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  3. Apr 22nd, 2002, 09:33 PM #3
    filburt1
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    Not a null character, but a null value (Long data type)
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  4. Apr 22nd, 2002, 09:40 PM #4
    WorkHorse
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    A Long can't be null. Try &H0.
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  6. Apr 22nd, 2002, 09:46 PM #5
    filburt1
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    Yeah, I think you're right about 0. *sigh* That's good and bad...
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  7. Apr 22nd, 2002, 09:53 PM #6
    WorkHorse
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    Seems manage window handles and device contexts fine. Usually pass &H0 in an API when you mean nothing.
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