Finding all WMI class names within a WMI namespace with .NET C#

In this post we saw an example of using WMI objects such as ConnectionOptions, ObjectQuery and ManagementObjectSearcher to enumerate all local drives on a computer. Recall the SQL-like query we used:

ObjectQuery objectQuery = new ObjectQuery("SELECT Size, Name FROM Win32_LogicalDisk where DriveType=3");

We’ll now see a technique to list all WMI classes within a WMI namespace. First we get hold of the WMI namespaces:

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Finding all WMI class properties with .NET C#

In this post we saw how to enumerate all WMI – Windows Management Intrumentation – namespaces and classes. Then in this post we saw an example of querying the system to retrieve all local drives:

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Finding all WMI class names within a WMI namespace with .NET C#

In this post we saw an example of using WMI objects such as ConnectionOptions, ObjectQuery and ManagementObjectSearcher to enumerate all local drives on a computer. Recall the SQL-like query we used:

ObjectQuery objectQuery = new ObjectQuery("SELECT Size, Name FROM Win32_LogicalDisk where DriveType=3");

We’ll now see a technique to list all WMI classes within a WMI namespace. First we get hold of the WMI namespaces:

Read more of this post

Getting notified by a Windows process change in C# .NET

In this post we saw an example of using the ManagementEventWatcher object and and EventQuery query. The SQL-like query was used to subscribe to a WMI – Windows Management Instrumentation – level event, namely a change in the status of a Windows service. I won’t repeat the explanation here again concerning the techniques used. So if this is new to you then consult that post, the code is very similar.

In this post we’ll see how to get notified by the creation of a new Windows process. This can be as simple as starting up Notepad. A Windows process is represented by the Win32_Process WMI class which will be used in the query. We’ll take a slightly different approach and use the WqlEventQuery object which derives from EventQuery.

Consider the following code:

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Finding all Windows Services using WMI in C# .NET

In this post we saw how to retrieve all logical drives using Windows Management Instrumentation – WMI -, and here how to find all network adapters.

Say you’d like to get a list of all Windows Services and their properties running on the local – “root” – machine, i.e. read the services listed here:

Services window

The following code will find all non-null properties of all Windows services found:

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4 ways to enumerate processes on Windows with C# .NET

The Process object in the System.Diagnostics namespace refers to an operating-system process. This object is the entry point into enumerating the processes currently running on the OS.

This is how you can find the currently active process:

Process current = Process.GetCurrentProcess();
Console.WriteLine(current);

…which will yield the name of the process running this short test code.

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4 ways to enumerate processes on Windows with C# .NET

The Process object in the System.Diagnostics namespace refers to an operating-system process. This object is the entry point into enumerating the processes currently running on the OS.

This is how you can find the currently active process:

Process current = Process.GetCurrentProcess();
Console.WriteLine(current);

…which will yield the name of the process running this short test code.

Read more of this post

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