C# - How can I access this data correctly?

[AlTech]

So I want to access some data correctly but despite my numerous attempts I have not been able to get this to work properly.

 

1. I'm trying to find the correct total amount of RAM installed and available RAM.

 

I tried using the Microsoft.VisualBasic Library and added it as a reference.

 

And it's showing more RAM than I have. So how can I get RAM information correctly?

 

			ulong physicalmemory = new ComputerInfo().TotalPhysicalMemory / 1000000000;
            int convertedphysical = Convert.ToInt32(physicalmemory);
            total_ram.Text = convertedphysical.ToString() + "GB";

            ulong available = new ComputerInfo().AvailablePhysicalMemory / 1000000000;
            int convertedavailable = Convert.ToInt32(available);
            available_ram.Text = convertedavailable.ToString() + "GB";

 

 

2. How can I find out what exact  OS Build someone has? I tried using what version of IE installed was to guess but I found this to be not accurate for anybody on Windows 8, 8.1 or Windows 7.

[rattacko123]

@patrickjp93
u the coding guy right?
help this person out

[AlTech]

I might have found a solution for the total RAM but not for available RAM.

EDIT: ooops nvm .

 

 

[AlTech]

6 minutes ago, rattacko123 said:

@patrickjp93
u the coding guy right?
help this person out

There's no one "Coding Guy". A few people on the forum do programming.

[AlTech]

Fixed the memory part. I needed to divide by 1.024 billion  instead of 1 billion.

[vorticalbox]

seeing as a byte is 1024 bits

3 hours ago, AluminiumTech said:

Fixed the memory part. I needed to divide by 1.024 billion  instead of 1 billion.

 

[AlTech]

4 minutes ago, vorticalbox said:

seeing as a byte is 1024 bits

 

I'm hearing of strange issue where a PC with 24GB will show 25GB using the calculation......

Any idea on what might cause that?

[AlTech]

9 minutes ago, vorticalbox said:

seeing as a byte is 1024 bits

 

Also, do you know of any way where I can determine what OS build they are running?

 

E.g. Windows 10 Build 10.0.10240 or 10.0.14393 etc

[Unimportant]

30 minutes ago, AluminiumTech said:

I'm hearing of strange issue where a PC with 24GB will show 25GB using the calculation......

Any idea on what might cause that?

A Kibibyte = 1024 bytes

A Mebibyte = 1024 Kibibytes

A GibiByte = 1024 Mebibytes

 

So you need to divide by (1024 * 1024 * 1024).

[AlTech]

Just now, Unimportant said:

A Kibibyte = 1024 bytes

A Mebibyte = 1024 Kibibytes

A GibiByte = 1024 Mebibytes

 

So you need to divide by (1024 * 1024 * 1024).

Oh. Ok. So I need to do per  stage and I can't do it in one go?

Gotcha! Any ideas for Windows build?

[Unimportant]

You can do it one go, but the result of 1024*1024*1024 = 1073741824, not 1.024 billion, that's why your result is off.

 

As for windows information:

 

https://msdn.microsoft.com/en-us/library/system.environment.osversion(v=vs.110).aspx

https://msdn.microsoft.com/en-us/library/system.version(v=vs.110).aspx

[patrickjp93]

As per which OS, you have to query for the kernel and use a lookup table.

 

As for RAM, I believe the technique you're currently using is giving you all virtual memory too.

 

I haven't needed to use these particular aspects of C# before. The deepest I ever went into that rabbit hole was using Reflection.

[mariushm]

Windows version :  https://github.com/lordmulder/stdutils/blob/1.09/Contrib/StdUtils/src/DetectOsVersion.cpp

 

See thread here : http://forum.doom9.org/showthread.php?p=1767546  -  I copied the above link from there, and it contains more explanations about why getting accurate windows versions may be more difficult as time goes by

 

As for hardware information, the most elegant way would be to use WMI (Windows Management Instrumentation) , there are built in WMI Classes for that,so you can just parse all the information and build up information about how much memory the system has available : https://msdn.microsoft.com/en-us/library/aa389273(v=vs.85).aspx#_hmm_motherboard_controller_and_port_classes

 

[AlTech]

9 hours ago, mariushm said:

Windows version :  https://github.com/lordmulder/stdutils/blob/1.09/Contrib/StdUtils/src/DetectOsVersion.cpp

 

See thread here : http://forum.doom9.org/showthread.php?p=1767546  -  I copied the above link from there, and it contains more explanations about why getting accurate windows versions may be more difficult as time goes by

 

As for hardware information, the most elegant way would be to use WMI (Windows Management Instrumentation) , there are built in WMI Classes for that,so you can just parse all the information and build up information about how much memory the system has available : https://msdn.microsoft.com/en-us/library/aa389273(v=vs.85).aspx#_hmm_motherboard_controller_and_port_classes

 

But that Windows version thing is in C++. I'm not using C++. I now I could get the build number from the registry but I don't think that's a good idea.

[mariushm]

You can call Windows API functions from your preferred language, they're not something specific to C++. 

The IF in C++ is also an IF in C# or Visual Basic .net or whatever you use, the FOR and WHILE are the same in lots of languages, you can TRANSLATE the C++ code to your programming language. Just be patient and try to UNDERSTAND what happens in the C++ code and you'll be able to adapt it to your program.

 

See https://msdn.microsoft.com/en-us/library/172wfck9.aspx (for vb.net) or http://www.codeproject.com/Articles/1285/Calling-API-functions-using-C for c# or  https://visualstudiomagazine.com/articles/2010/04/20/call-win32-api-functions-in-vb.aspx which even contains an example in vb .net (very easy to convert to c#) of using API functions to determine windows version (but slightly inaccurate/incomplete these days as doesn't cover all cases)