Getting free physical Memory ?

[Martin 0]

Hello, I would like to know if it's possible (and how) to get the free memory (RAM). I searched in google and here on the forum but had no luck so far. (It's also quit difficult to search for "free memory" ) Thanks for youre time and help, Martin

[Anton Afanasyev]

That's hardware, and hardware isnt downloadable:laugh:

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[Bhupi Bhai]

Yes, I guess it's possible using SDK Memory related API's. Can't recall the exact API's though (had used them some 5yrs back :doh:), try finding them on MSDN. Hummm .... can recall of one called "GetSystemInfo" which returns info about current system. Good luck !! Regards, Bhupi Bhai.

[Martin 0]

Hello,

Anton Afanasyev wrote:

That's hardware, and hardware isnt downloadable

:confused: Sorry but I don't even understand that joke? Maybe you can help next time.

[Anton Afanasyev]

gaaaah whats with people and no sense of humour. hmm, maybe its due to me having to be in bed by now... anyways, what i mean was that you were asking where you could get free RAM, and searching in google didnt help. as in, nobody willing to give you free ram. /me holds up "LAUGH NOW" sign...

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[Martin 0]

Thanks very much in advance! I'll give it a try (GetSystemInfo in kernel32.dll)! Martin

[Martin 0]

If it makes youre day better, I send you: :laugh::laugh:

Anton Afanasyev wrote:

whats with people and no sense of humour

Maybe humor like that makes more fun if it is posted togetter with a real answer! All the best, Martin

[Martin 0]

Hello, Had no luck with that. GetSystemInfo returns a:

	\[StructLayout(LayoutKind.Sequential)\]
	class SYSTEM\_INFO
	{
		public ushort wProcessorArchitecture;
		public ushort wReserved;
		public uint dwPageSize;
		public IntPtr lpMinimumApplicationAddress;
		public IntPtr lpMaximumApplicationAddress;
		public IntPtr dwActiveProcessorMask;
		public uint dwNumberOfProcessors;
		public uint dwProcessorType;
		public uint dwAllocationGranularity;
		public ushort wProcessorLevel;
		public ushort wProcessorRevision;
	}

I implemented it like that:

	\[DllImport("kernel32.dll", CharSet = CharSet.Unicode,CallingConvention = CallingConvention.Winapi, EntryPoint = "GetSystemInfo")\]
	private static extern void GetSystemInfo(\[In,MarshalAs(UnmanagedType.LPStruct)\]SYSTEM\_INFO pSysInfo);

And called it like that:

		SYSTEM\_INFO sysinfo = new SYSTEM\_INFO();
		GetSystemInfo(sysinfo);

But I didn't found a member that fits me needs:~ If I made something wrong, please let me know. But again thanks for youre time. Martin

[Bhupi Bhai]

Yes, ur on the right track. But I am sorry can't recall the exact API for it. You will have to do some more rnd on this. Regards, Bhupi Bhai.

[lmoelleb]

I would suspect you can get the info though WMI. Using WMI from C# is fairly simple - you should be able to get a sample from Google. I would probably try to split the search into two: 1) How to use WMI from C# 2) How to get the free memory though WMI (in any language) just in case you can't easily find an example getting the free memory from C#.

[Martin 0]

Hello, I think I found it 5minutes ago. But I will need it in future. Thank you. All the best, Martin

[Martin 0]

Got it now!:-> Here is what I'm using now:

	\[StructLayout(LayoutKind.Sequential)\]
	class MEMORYSTATUS
	{
		public IntPtr dwLength;
		public IntPtr dwMemoryLoad;
		public IntPtr dwTotalPhys;
		public IntPtr dwAvailPhys;
		public IntPtr dwTotalPageFile;
		public IntPtr dwAvailPageFile;
		public IntPtr dwTotalVirtual;
		public IntPtr dwAvailVirtual;
	}

	\[DllImport("kernel32.dll", CharSet = CharSet.Unicode,CallingConvention = CallingConvention.Winapi, EntryPoint = "GlobalMemoryStatus")\]
	private static extern void GlobalMemoryStatus(\[In,MarshalAs(UnmanagedType.LPStruct)\]MEMORYSTATUS lpBuffer);

Maybe somebody needs it. Thanks for the replies. All the best, Martin

[Martin 0]

Found it! GlobalMemoryStatus from kernel32.dll Thanks again!

[Bhupi Bhai]

Yes, lmoelleb (is that ur name) is right. Using WMI in C# you can get Free Physical Memory. ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem"); ManagementObjectCollection queryCollection1 = query.Get(); foreach(ManagementObject mo in queryCollection1 ) { Console.WriteLine("Free Physical Memory : " + mo["freephysicalmemory"].ToString()); } Regards, Bhupi Bhai.

[Anton Afanasyev]

The sad thing is, I replied to what I thought he meant...then later, adapted that answer to the situation. heh.I guess I deserved those 1 votes.

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