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Editorial Team
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Asked: 2026-05-23T13:26:09+00:00

I’ve run into what seems to be an odd quirk with VB6. I’m passing

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I’ve run into what seems to be an odd quirk with VB6. I’m passing a checkbox to a method with the signature MyMethod(ByRef object) and calling it as myClass.MyMethod chkMyCheckbox. VB6, however, refuses to pass the checkbox itself, but instead passes a reference to 1 to my method. I’m guessing that this has something to do with how VB6 specifies an object’s default properties. How can I get the entire object to be passed, not just .Value? I cannot turn off default properties, as a large amount of the legacy code relies heavily on them.

Typing discrepancy

As you can see, ChkCalFault is a Checkbox and not an integer, but is being evaluated and passed as its integer value. (Which is in this screenshot 0.)

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1 Answer

  1. Editorial Team

    I can’t see what your trying to do with the code so I apologize if this is off-base, but would modifying your methods signature to 

    MyMethod(ByRef MyCheckBox as CheckBox)

    work for you? If not, the undocumented VarPtr will get the address of your checkbox object, but I don’t know if that points you in the right direction either.

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