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WSH Problem


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  #1  
Old August 12th, 2006, 02:08 AM
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Nilpo Nilpo is offline
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WSH Problem
Okay anyone got an explanation?

Code:
regtest.vbs 
strRegValue = "HKLM\Software\Microsoft\Windows\CurrentVersion\ProductID"

Set WshShell = WScript.CreateObject("WScript.Shell")

strPID = WshShell.RegRead (strRegValue)
Wscript.Echo strPID

WshShell.RegDelete strRegValue
Wscript.Echo "The registry value has been deleted."

WshShell.RegWrite strRegValue, strPID
Wscript.Echo "The registry value has been written back."


Why am I recieving an error when I use the VBScript syntax for the RegRead method (without parenthesis)? The RegWrite and RegDelete methods both work properly, but the RegRead method won't execute without parenthesis.
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Last edited by nilpo : August 12th, 2006 at 05:37 AM.
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Old August 16th, 2006, 05:06 PM
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Hi Nilpo,

The reason is because the RegWrite and RegDelete routines are Sub routines and are not returning a value.

The RegRead routine is a Function and does return a value.

Vbscript syntax requires that a function always is followed by parenthesis even if no value is passed into the function.

I think this dates to the original coding syntax defined for vbscript.
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Old August 17th, 2006, 02:03 PM
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RegRead IS a function? That's interesting. It does make sense considering it returns the value it finds in the registry. I wasn't aware of that. Thanks for the heads up.
Last edited by nilpo : August 17th, 2006 at 02:05 PM.
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