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POVB6 - ByRef argument type mismatch error - where is it?
 

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  1. POVB6 - ByRef argument type mismatch error - where is it?
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    <p>For the 10+ years I've been using VB6, every now and then I get a "ByRef argument type mismatch" error where I simply can't find the mismatch. After struggling for a while I've always punted by forcing the type one way or another, but this time I thought I'd ask. I'm including all the code I think could have anything to do with this; but you can skip it now and refer to it after I demonstrate the problem:</p> <pre>Public Type PBufferType Location(9) As Integer ' code location ValueHi(9) As Integer ' Vhi code ValueLo(9) As Integer ' Vlo code Locked(9) As Integer ' State of pair Gamma(9) As Single ' Gamma between this segment and next End Type Public GammaBuffer(1) As PBufferType ' The main data type Public SelectedBank as Integer Function MeasureLuxAtCode(code As Integer) As Single Call TestPatternForm.DrawTestWindow(3, code) MeasureLuxAtCode = MeasureLux(1) End Function </pre> <p>The problem occurs below. The "LuxMinTarget = MeasureLuxAtCode(FirstLevel)" line generates a "ByRef argument type mismatch" error, indicating that FirstLevel is not an integer.</p> <pre> Sub DetermineIdealLuxCurve() Dim FirstLevel, FirstDACtoMeasure As Integer FirstDACtoMeasure = 0 FirstLevel = GammaBuffer(SelectedBank).Location(FirstDACtoMeasure) LuxMinTarget = MeasureLuxAtCode(FirstLevel) End Sub </pre> <p>But dang it, FirstLevel <em>is</em> an integer, isn't it? It's dim'ed an int, its value is set by a UDT that returns an int, so where did I go wrong? If I force it to an int like this:</p> <pre> LuxMinTarget = MeasureLuxAtCode(Int(FirstLevel)) </pre> <p>the compiler/interpreter's happy. But I'm not.</p> <p>So is this a bug in the compiler or just me being dense?</p>
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    1. USFred Hamilton
    1. USFred Hamilton
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      1. POVB6 - ByRef argument type mismatch error - where is it?
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    1. COWhere are SelectedBank and FirstDACtoMeasure defined?
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      1. POVB6 - ByRef argument type mismatch error - where is it?
      1. USJoel Coehoorn
    2. COI edited the question to add those two variables. SelectedBank = global integer and FirstDACtoMeasure = local integer.
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      1. POVB6 - ByRef argument type mismatch error - where is it?
      1. USFred Hamilton
    3. COYou can only get this when calling a sub/function whose parameter(s) are passed by reference. What are the definitions of SelectedBank, FirstDACtoMeasure, DrawTestWindow() and MeasureLux()?
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      1. USJim H.
 

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