www.pudn.com > CS.rar > MemoryStatus.cs

// MemoryStatus.cs - Displays system memory status 
// by calling a Win32 function and passing a pointer to a data 
// structure. 
// 
// Code from _Programming the .NET Compact Framework with C#_ 
// and _Programming the .NET Compact Framework with VB_ 
// (c) Copyright 2002-2004 Paul Yao and David Durant.  
// All rights reserved. 
 
using System; 
using System.Text; 
using System.Runtime.InteropServices; 
using System.Windows.Forms; 
 
namespace MemoryStatus 
{ 
   public class MemoryStatus 
   { 
      [DllImport("coredll.dll")] 
      public static extern  
      void GlobalMemoryStatus (ref MEMORYSTATUS lpBuffer); 
 
      public struct MEMORYSTATUS 
      { 
         public int dwLength; 
         public int dwMemoryLoad; 
         public int dwTotalPhys; 
         public int dwAvailPhys; 
         public int dwTotalPageFile; 
         public int dwAvailPageFile; 
         public int dwTotalVirtual; 
         public int dwAvailVirtual; 
      }; 
      const string CRLF = "\r\n"; 
    
      public static void Main() 
      { 
         MEMORYSTATUS ms = new MEMORYSTATUS(); 
         ms.dwLength = Marshal.SizeOf(ms); 
         GlobalMemoryStatus(ref ms); 
          
         string strAppName = "Memory Status"; 
          
         StringBuilder sbMessage = new StringBuilder(); 
         sbMessage.Append("Memory Load = "); 
         sbMessage.Append(ms.dwMemoryLoad.ToString() + "%"); 
         sbMessage.Append(CRLF); 
         sbMessage.Append("Total RAM = "); 
         sbMessage.Append(ms.dwTotalPhys.ToString("#,##0")); 
         sbMessage.Append(CRLF); 
         sbMessage.Append("Avail RAM = "); 
         sbMessage.Append(ms.dwAvailPhys.ToString("#,##0")); 
         sbMessage.Append(CRLF); 
         sbMessage.Append("Total Page = "); 
         sbMessage.Append(ms.dwTotalPageFile.ToString("#,##0")); 
         sbMessage.Append(CRLF); 
         sbMessage.Append("Avail Page = "); 
         sbMessage.Append(ms.dwAvailPageFile.ToString("#,##0")); 
         sbMessage.Append(CRLF); 
         sbMessage.Append("Total Virt = "); 
         sbMessage.Append(ms.dwTotalVirtual.ToString("#,##0")); 
         sbMessage.Append(CRLF); 
         sbMessage.Append("Avail Virt = "); 
         sbMessage.Append(ms.dwAvailVirtual.ToString("#,##0")); 
 
         MessageBox.Show(sbMessage.ToString(), strAppName); 
      } 
   } 
}