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Asked: 2026-06-15T15:35:35+00:00

I have to refactor a VB6 program to C# and am stuck at understanding

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I have to refactor a VB6 program to C# and am stuck at understanding the following lines:

Set myFileSystemObject = New FileSystemObject
Set myTextStream = myFileSystemObject.OpenTextFile("myTextFile.txt")
Open sPrinterPort For Output As iFileNumber
Print #iFileNumber, myTextStream.ReadAll
Close #iFileNumber

I do know what’s generally happening, but as I’m not used to the VB syntax, I’d like to know exactly what

Print #iFileNumber, myTextStream.ReadAll

does. And more specifically, what the # in front of iFileNumber does. Why is it there? Wouldn’t the variable itself suffice to print on the stream?

This is merely for understanding exactly what’s happening in the code.

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1 Answer

  1. Editorial Team

    Print #iFileNumber, myTextStream.ReadAll prints the string returned by ReadAll into the file opened by number iFileNumber (and because there is no semicolon after the statement, it also adds vbNewLine in the end.)

    The # (for “number”) is there since the old times. VB6 just supports it. It does nothing execution wise. It used to assist readability and make the language more natural-like. Speak out loud:

    Open "1.txt" For Input As 1

    vs.

    Open "1.txt" For Input As #1
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