@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: The VirtualQuery API !!!!C# Signature: [DllImport("kernel32.dll")] private static extern int VirtualQuery ( ref UIntPtr lpAddress, ref MEMORY_BASIC_INFORMATION lpBuffer, int dwLength ); !!!!User-Defined Types: None. !!!!Notes: This code shows how to call the VirtualQuery function and how data structures must be prepared. !!!!Tips & Tricks: Please add some! !!!!Sample Code: class Class1 { [STAThread] static void Main(string[] args) { Memory memory = new Memory(); memory.ShowMemory(); Console.Read(); } } class Memory { [StructLayout(LayoutKind.Sequential)] public struct SYSTEM_INFO { internal PROCESSOR_INFO_UNION p; public uint dwPageSize; public IntPtr lpMinimumApplicationAddress; public IntPtr lpMaximumApplicationAddress; public UIntPtr dwActiveProcessorMask; public uint dwNumberOfProcessors; public uint dwProcessorType; public uint dwAllocationGranularity; public ushort wProcessorLevel; public ushort wProcessorRevision; }; [StructLayout(LayoutKind.Explicit)] public struct PROCESSOR_INFO_UNION { [FieldOffset(0)]internal uint dwOemId; [FieldOffset(0)]internal ushort wProcessorArchitecture; [FieldOffset(2)]internal ushort wReserved; } [StructLayout(LayoutKind.Sequential)] public struct MEMORY_BASIC_INFORMATION { public UIntPtr BaseAddress; public UIntPtr AllocationBase; public uint AllocationProtect; public IntPtr RegionSize; public uint State; public uint Protect; public uint Type; } SYSTEM_INFO system_info; MEMORY_BASIC_INFORMATION mbi; [DllImport("kernel32.dll")] private static extern int VirtualQuery (ref uint lpAddress, ref MEMORY_BASIC_INFORMATION lpBuffer, int dwLength ); [DllImport("kernel32.dll")] private static extern void GetSystemInfo( [MarshalAs(UnmanagedType.Struct)] ref SYSTEM_INFO lpSystemInfo ); public Memory() { system_info = new SYSTEM_INFO(); mbi = new MEMORY_BASIC_INFORMATION(); } public void ShowMemory() { int iSize; GetSystemInfo(ref system_info); Console.WriteLine("dwProcessorType: {0}", system_info.dwProcessorType.ToString()); Console.WriteLine("dwPageSize: {0}", system_info.dwPageSize.ToString()); if (VirtualQuery(ref system_info.dwPageSize, ref mbi, (int)System.Runtime.InteropServices.Marshal.SizeOf(mbi)) != 0 ) { Console.WriteLine("AllocationBase: {0}", mbi.AllocationBase); Console.WriteLine("BaseAddress: {0}", mbi.BaseAddress); Console.WriteLine("RegionSize: {0}", mbi.RegionSize); } else { Console.WriteLine("ERROR: VirtualQuery() failed."); } } } !!!!Alternative Managed API: Do you know one? Please contribute it! Documentation: VirtualQuery@msdn on MSDN
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