Programming Forums - Temperature Controls

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Temperature Controls

Hi,

I'm wanting to make a temperature monitoring application like speedfan or coretemp and was just wondering how to monitor the temperature. Is there a certain control - I've tried googling for a class or something and I just can't find anything.

Thanks very, very much!

Matt. I

Re: Temperature Controls

do you actualy want to interface with hardware?

Re: Temperature Controls

Yes, I think it would be nice. Why would you not recommend it? Is there something bad I'm missing?

Thanks for the reply!

Re: Temperature Controls

Here's a link to a discussion about how to do it in Linux. Although you're not doing this in Linux, I'm sure that either some of the libraries are cross-compatible and/or you can use this thread as a stepping stone to finding the correct library.

Good luck.

Re: Temperature Controls

You can use WMI (Windows Management Instrumentation) Classes and use the Win32_TemperatureProbe WMI Class to get that information you need, here is a code snippet that shows how to use WMI on C#, you can easily convert this to VB:

the code:

using System;
using System.Management;
using System.Management.Instrumentation;
 
public class BClass
{
 
    public static void Main(string[] args)
    {
        ManagementObjectSearcher objectSearcher = new ManagementObjectSearcher("SELECT * FROM Win32_TemperatureProbe");
 
        foreach (ManagementObject obj in objectSearcher.Get())
            Console.WriteLine(obj["Status"]);
    }
}

You can use other properties as listed below:
http://msdn2.microsoft.com/en-us/lib...93(VS.85).aspx

but note that, you will need a bit of research because of the manufacturer drivers, on my laptop it doesn't work because I don't have appropriate drivers because I have an apple mac book so it doesn't show anything, but you can read here for more information:
http://groups.google.de/groups?q=cpu+temperature+dotnet

you can browse other WMI Classes to use for other purposes (see the list on the left)

Re: Temperature Controls

Thanks! The C# was helpful!

There are two ways (almost the same) I managed to find (with some help) in VB.NET:

Imports System

Imports System.Management



Public Class Form1



    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        'Try

        '    Dim searcher As New ManagementObjectSearcher("root\WMI", "SELECT * FROM MSAcpi_ThermalZoneTemperature")



        '    For Each queryObj As ManagementObject In searcher.Get()

        '        Dim temp As Double = CDbl(queryObj("CurrentTemperature"))

        '        temp = (temp - 2732) / 10.0

        '        MessageBox.Show(temp.ToString)

        '    Next



        'Catch ex As ManagementException

        '    MessageBox.Show(ex.Message)

        'End Try



        Dim tempReturn As Management.ManagementObjectCollection



        Dim tempSearch As Management.ManagementObjectSearcher



        Dim temp As Management.ManagementObject



        Dim StrOut As String



        tempSearch = New Management.ManagementObjectSearcher("root\cimv2", "Select * from Win32_TemperatureProbe")



        tempReturn = tempSearch.Get



        For Each mo In tempReturn



            StrOut = StrOut & " " & mo("Name") & " " & mo("CurrentReading")



        Next



        MsgBox(StrOut)



    End Sub



End Class

Unfortunately, they don't work for me either. Is there any way that you know that I can get the drivers to make them work/include them in the application?

Thanks!

Matt. I

Re: Temperature Controls

Well I did a bit of research on "why-wmi-doesn't-support-Win32_TemperatureProbe" and figured out that WMI doesn't support this feature right now, but it will in the near future, but I saw that this guy -> http://geekswithblogs.net/cicorias/a.../22/97855.aspx wrote a little software for temperature monitor and you can download its source code, but I downloaded the installer and when I open the main assembly it throws an exception see the picture below:

http://img514.imageshack.us/img514/3...pportedej0.png

because he used the same techniques that we discussed above this post. So keep googling and if you find something useful, notify us, in meantime I will try finding the solution and will reply for notification.