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How to implement the WMI WIN32 calls

How to implement the WMI WIN32 calls

How to implement the WMI WIN32 calls

Hi all,

I use VBS (Visual Basic Script) to automate some tasks. However, sometimes I miss some nice and handy features in VBS.

As well I use Borland C++. Now I will try to use borland to perform these tasks. Do somebody know were I can find some simple examples how to implement the WMI Win32 calls with borland C++.

Thanks in advance,


RE: How to implement the WMI WIN32 calls

Thanks for the information.

Hi Glenn,

I used the code that was posted on the: Get System information from WMI FAQ102-7315: Get System information from WMI

I have just a question:

The function below generates the following error code:


function WMIRowFindFirst(ObjectSet: ISWbemObjectSet; var ENum: IEnumVariant; var tempobj: OleVariant): boolean;
// finds the first row in a result set.
    Value: Longint;
    Enum :=  (ObjectSet._NewEnum) as IEnumVariant;
    Result := (ENum.Next(1, tempObj, @Value) = 0);

The following line generates this error:

Result := (ENum.Next(1, tempObj, @Value) = 0);

[DCC Error] wmiserv.pas(75): E2033 Types of actual and formal var parameters must be identical

I found this message back on the internet, however I still can't solve it.

Can anyone give me a hint how to solve this.

Thanks in advance,



RE: How to implement the WMI WIN32 calls

If you must work on Windows Vista or later, can I suggest you to learn PowerShell?
Is easy to use and you can write programs with wmi very quickly.

NOTE: For Windows XP you can also install PowerShell package   

RE: How to implement the WMI WIN32 calls

It is working now,

I changed:

    Value: Longint;


    Value: Cardinal;



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