C# Signature:
[DllImport("coredll", EntryPoint="GlobalMemoryStatus", SetLastError=false)]
internal static extern void GlobalMemoryStatusCE(out MemoryStatus msce);
VB Signature:
<DllImport("coredll.dll")> Private Shared Function GlobalMemoryStatus(ByRef ms As MEMORYSTATUS) As Int32
End Function
User-Defined Types:
vb Memorystatus structure
Public Structure MEMORYSTATUS
''' <summary>
''' size of the structure
''' </summary>
''' <remarks> ms.dwLength = Marshal.SizeOf(ms)</remarks>
Public dwLength As Int32
''' <summary>
''' % of used
''' </summary>
''' <remarks></remarks>
Public dwMemoryLoad As Int32
''' <summary>
''' bytes of total ram
''' </summary>
''' <remarks></remarks>
Public dwTotalPhys As Int32
''' <summary>
''' bytes of currently available ram
''' </summary>
''' <remarks></remarks>
Public dwAvailPhys As Int32
''' <summary>
''' bytes in pageing (? not normally supported in Ce)
''' </summary>
''' <remarks></remarks>
Public dwTotalPageFile As Int32
''' <summary>
''' bytes in pageing (? not normally supported in Ce)
''' </summary>
''' <remarks></remarks>
Public dwAvailPageFile As Int32
''' <summary>
''' total virtual bytes can be used
''' </summary>
''' <remarks></remarks>
Public dwTotalVirtual As Int32
''' <summary>
''' current virtual bytes available
''' </summary>
''' <remarks></remarks>
Public dwAvailVirtual As Int32
End Structure
C# MemoryStatus structure:
[StructLayout(LayoutKind.Sequential)]
internal struct MemoryStatus {
/// <summary>
/// Size of the structure
/// </summary>
public int dwLength { get; set; }
/// <summary>
/// Percentage of memory used
/// </summary>
public int dwMemoryLoad { get; set; }
/// <summary>
/// Total size in bytes of physical memory
/// </summary>
public int dwTotalPhys { get; set; }
/// <summary>
/// Available size in bytes of physical memory
/// </summary>
public int dwAvailPhys { get; set; }
/// <summary>
/// Total size in bytes of page file memory
/// </summary>
public int dwTotalPageFile { get; set; }
/// <summary>
/// Available size in bytes of page file memory
/// </summary>
public int dwAvailPageFile { get; set; }
/// <summary>
/// Total size in bytes of virtual memory
/// </summary>
public int dwTotalVirtual {get; set; }
/// <summary>
/// Available size in bytes of virtual memory
/// </summary>
public int dwAvailVirtual { get; set; }
}
Alternative Managed API:
GC.GetTotalMemory() can return the current memory in GC but no other details.
Notes:
Taken from openNetCF in OpenNETCF.Win32.Core
Tips & Tricks:
you can ignore the dwTotalPageFile and dwAvailPageFile as they are not supported
under CE
Sample Code:
''' <summary>
''' gets the memory status of the current ce platform
''' </summary>
''' <returns></returns>
''' <remarks></remarks>
Public Shared Function GetMemory() As MEMORYSTATUS
Dim ms As MEMORYSTATUS
ms.dwLength = Marshal.SizeOf(ms)
GlobalMemoryStatus(ms)
Return ms
End Function
