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How to pass parameters in vbscript

Posted on 2008-10-09
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1,964 Views
Last Modified: 2012-06-27
Hi,
i want to write a stand alone vbscript that get 5 numbers and return 2 results, the sum and the multipling of this 5 numbers. i need to run this vbscript from java code and use the return results.
please help me with tha vbscript and the java code (include use the return parameters).
Thanks.
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Question by:ExpandNetworks
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8 Comments
 
LVL 65

Expert Comment

by:RobSampson
ID: 22682172
Hi, the only way that I can think of to do this is to pass the five numbers to the VBScript, as well as another argument that specifies whether you want to sum or multiply those numbers.  VBScript is only capable of returning one integer value at a time.

Here is the VBS that will do the calculation for you.  The first parameter must be a string of "sum" or "multiply".  The rest of the parameters can be 1 or more integers.

Regards,

Rob.

If WScript.Arguments.Count > 1 Then
	strMode = WScript.Arguments.Item(0)
	If LCase(strMode) = LCase("sum") Then
		intTotal = 0
	ElseIf LCase(strMode) = LCase("multiply") Then
		intTotal = 1
	End If
	For intArg = 1 To WScript.Arguments.Count - 1
		If LCase(strMode) = LCase("sum") Then
			intTotal = intTotal + CInt(WScript.Arguments.Item(intArg))
		ElseIf LCase(strMode) = LCase("multiply") Then
			intTotal = intTotal * CInt(WScript.Arguments.Item(intArg))
		End If
	Next
	WScript.Quit(intTotal)
Else
	WScript.Echo "There were not enough arguments passed to this script."
End If

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LVL 65

Expert Comment

by:RobSampson
ID: 22682180
And this is a VBS implementation of how to call that function......I'm not that familiar with JavaScript, but perhaps this will help you create a JavaScript version, if you know it....

Regards,

Rob.
Set objShell = CreateObject("WScript.Shell")
strVBS = "C:\Temp\Scripts\Test1.vbs"
'strMode = "sum"
strMode = "multiply"
arrNumbers = Array(1,2,3,4,5)
 
strCommand = "wscript " & strVBS & " " & strMode
For Each intNum In arrNumbers
	strCommand = strCommand & " " & intNum
Next
 
strReturn = objShell.Run(strCommand, 1, True)
MsgBox strReturn

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Author Comment

by:ExpandNetworks
ID: 22688115
It is possible to return a string or an array instad of only one integer?
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LVL 65

Expert Comment

by:RobSampson
ID: 22691392
No, not without writing that value to a file or environment variable for the other script to read from.

The wscript.quit method is only capable of returning a single integer value.

If you want the VBScript to write to a file, for the JavaScript to pick up later, than can be done....

Regards,

Rob.
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Author Comment

by:ExpandNetworks
ID: 22694474
so,
how can i use the environment variable?
can you please show me an example?
Thanks
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LVL 65

Accepted Solution

by:
RobSampson earned 250 total points
ID: 22699100
Hi, well, again, I'm not sure about a JavaScript implementation, but in VBScript, you can use the following code.

In the links in the comments, there is a slight alternative to this method for accessing environment variables as well.

Regards,

Rob.
strEnvVarName = "MakeRuleReturnCode"
Set_Env_Var strEnvVarName, "0"
strVarValue = Get_Env_Var(strEnvVarName)
 
MsgBox strEnvVarName & " currently has a value of " & strVarValue
 
Sub Set_Env_Var(strVarName, strVarValue)
 
	' SOURCE: http://www.codecomments.com/archive299-2005-12-736281.html
	' HOW TO ECHO???: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/05426477-f6e4-4dcb-8101-3f7d979c8ed5.asp
	Dim objShell, objEnvVar
	Set objShell = CreateObject("WScript.Shell")
	Set objEnvVar = objShell.Environment("Volatile")
	objEnvVar(strVarName) = strVarValue
	Set objEnvVar = Nothing
	Set objShell = Nothing
	
End Sub
 
'*************************************************************
 
Function Get_Env_Var(strVarName)
 
	' SOURCE: http://www.codecomments.com/archive299-2005-12-736281.html
	' HOW TO ECHO???: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/05426477-f6e4-4dcb-8101-3f7d979c8ed5.asp
	Dim objShell, objEnvVar
	Set objShell = CreateObject("WScript.Shell")
	Set objEnvVar = objShell.Environment("Volatile")
	Get_Env_Var = objEnvVar(strVarName)
	Set objEnvVar = Nothing
	Set objShell = Nothing
	
End Function

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Author Closing Comment

by:ExpandNetworks
ID: 31504719
Thanks, Rob
It's was very helpfull.....
Thanks again.
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LVL 65

Expert Comment

by:RobSampson
ID: 22706867
No problem. Thanks for the grade. I hope you can find a JavaScript equivalent....

Rob.
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