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function IsWow64: Boolean;
type
  TIsWow64Process = function( // Type of IsWow64Process API fn
    Handle: Windows.THandle; var Res: Windows.BOOL
  ): Windows.BOOL; stdcall;
var
  IsWow64Result: Windows.BOOL;      // Result from IsWow64Process
  IsWow64Process: TIsWow64Process;  // IsWow64Process fn reference
begin
  // Try to load required function from kernel32
  IsWow64Process := Windows.GetProcAddress(
    Windows.GetModuleHandle('kernel32'), 'IsWow64Process'
  );
  if Assigned(IsWow64Process) then
  begin
    // Function is implemented: call it
    if not IsWow64Process(
      Windows.GetCurrentProcess, IsWow64Result
    ) then
      raise SysUtils.Exception.Create('IsWow64: bad process handle');
    // Return result of function
    Result := IsWow64Result;
  end
  else
    // Function not implemented: can't be running on Wow64
    Result := False;
end;                    

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function GetNativeSystemInfo(var SystemInfo: TSystemInfo): Boolean;
type
  TGetNativeSystemInfo = procedure (var SystemInfo: TSystemInfo) stdcall;
var
  LibraryHandle: HMODULE;
  _GetNativeSystemInfo: TGetNativeSystemInfo;
begin
  Result := False;
  LibraryHandle := GetModuleHandle(kernel32);

  if LibraryHandle <> 0 then
  begin
    _GetNativeSystemInfo := GetProcAddress(LibraryHandle,'GetNativeSystemInfo');
    if Assigned(_GetNativeSystemInfo) then
    begin
      _GetNativeSystemInfo(SystemInfo);
      Result := True;
    end
    else
      GetSystemInfo(SystemInfo);
  end
  else
    GetSystemInfo(SystemInfo);
end;

function IsWindows64: Boolean;
var
  ASystemInfo: TSystemInfo;
const
  PROCESSOR_ARCHITECTURE_INTEL = 0;
  PROCESSOR_ARCHITECTURE_IA64 = 6;
  PROCESSOR_ARCHITECTURE_AMD64 = 9;
begin
  GetNativeSystemInfo(ASystemInfo);
  Result := ASystemInfo.wProcessorArchitecture in [PROCESSOR_ARCHITECTURE_IA64,PROCESSOR_ARCHITECTURE_AMD64];
end;                    

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//-----------------------------------------------------------------------------------------------------
//     This code was generated by the Wmi Delphi Code Creator (WDCC) Version 1.8.5.0
//     http://code.google.com/p/wmi-delphi-code-creator/
//     Blog http://theroadtodelphi.wordpress.com/wmi-delphi-code-creator/
//     Author Rodrigo Ruz V. (RRUZ) Copyright (C) 2011-2014 
//----------------------------------------------------------------------------------------------------- 
//
//     LIABILITY DISCLAIMER
//     THIS GENERATED CODE IS DISTRIBUTED "AS IS". NO WARRANTY OF ANY KIND IS EXPRESSED OR IMPLIED.
//     YOU USE IT AT YOUR OWN RISK. THE AUTHOR NOT WILL BE LIABLE FOR DATA LOSS,
//     DAMAGES AND LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING OR MISUSING THIS CODE.
//
//----------------------------------------------------------------------------------------------------
program GetWMI_Info;

{$APPTYPE CONSOLE}

uses
  SysUtils,
  ActiveX,
  ComObj,
  Variants;
  
function ProcessorTypeAsString(ProcessorType: integer): string;
begin
  case ProcessorType of
    0:
      Result := 'x86';
    1:
      Result := 'MIPS';
    2:
      Result := 'Alpha';
    3:
      Result := 'PowerPC';
    5:
      Result := 'ARM';
    6:
      Result := 'Itanium-based systems';
    9:
      Result := 'x64';
    else
      Result := 'unknown';
  end;
end;
    
// Die Klasse "Win32_Processor" stellt eine Gerät zum Übersetzen von sequentiellen 
// Computeranweisungen in einem Win32-Computersystem dar. Für jeden Prozessor ist 
// eine Instanz dieser Klasse vorhanden.

procedure  GetWin32_ProcessorInfo;
const
  WbemUser            ='';
  WbemPassword        ='';
  WbemComputer        ='localhost';
  wbemFlagForwardOnly = $00000020;
var
  FSWbemLocator : OLEVariant;
  FWMIService   : OLEVariant;
  FWbemObjectSet: OLEVariant;
  FWbemObject   : OLEVariant;
  oEnum         : IEnumvariant;
  iValue        : LongWord;
begin;
  FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
  FWMIService   := FSWbemLocator.ConnectServer(WbemComputer, 'root\CIMV2', WbemUser, WbemPassword);
  FWbemObjectSet:= FWMIService.ExecQuery('SELECT * FROM Win32_Processor','WQL',wbemFlagForwardOnly);
  oEnum         := IUnknown(FWbemObjectSet._NewEnum) as IEnumVariant;
  while oEnum.Next(1, FWbemObject, iValue) = 0 do
  begin
    Writeln(Format('AddressWidth    %d bit',[Integer(FWbemObject.AddressWidth)]));// Uint16
    Writeln(Format('Architecture    %s',[ProcessorTypeAsString(Integer(FWbemObject.Architecture))]));// Uint16
    Writeln('');
    FWbemObject:=Unassigned;
  end;
end;


begin
 try
    CoInitialize(nil);
    try
      GetWin32_ProcessorInfo;
    finally
      CoUninitialize;
    end;
 except
    on E:EOleException do
        Writeln(Format('EOleException %s %x', [E.Message,E.ErrorCode])); 
    on E:Exception do
        Writeln(E.Classname, ':', E.Message);
 end;
 Writeln('Press Enter to exit');
 Readln;      
end.                    

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function GetNativeSystemInfo(var SystemInfo: TSystemInfo): Boolean;
type
  TGetNativeSystemInfo = procedure (var SystemInfo: TSystemInfo) stdcall;
var
  LibraryHandle: HMODULE;
  _GetNativeSystemInfo: TGetNativeSystemInfo;
begin
  Result := False;
  LibraryHandle := GetModuleHandle(kernel32);

  if LibraryHandle <> 0 then
  begin
    _GetNativeSystemInfo := GetProcAddress(LibraryHandle,'GetNativeSystemInfo');
    if Assigned(_GetNativeSystemInfo) then
    begin
      _GetNativeSystemInfo(SystemInfo);
      Result := True;
    end
    else
      GetSystemInfo(SystemInfo);
  end
  else
    GetSystemInfo(SystemInfo);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
Label13.Caption := GetNativeSystemInfo;
end;

end.                    

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var 
  SystemInfo: TSystemInfo;
begin
  GetNativeSystemInfo(SystemInfo);                    

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function GetNativeSystemInfo(var SystemInfo: TSystemInfo): Boolean;
type
  TGetNativeSystemInfo = procedure (var SystemInfo: TSystemInfo) stdcall;
var
  LibraryHandle: HMODULE;
  _GetNativeSystemInfo: TGetNativeSystemInfo;
begin
  Result := False;
  LibraryHandle := GetModuleHandle(kernel32);

  if LibraryHandle <> 0 then
  begin
    _GetNativeSystemInfo := GetProcAddress(LibraryHandle,'GetNativeSystemInfo');
    if Assigned(_GetNativeSystemInfo) then
    begin
      _GetNativeSystemInfo(SystemInfo);
      Result := True;
    end
    else
      GetSystemInfo(SystemInfo);
  end
  else
    GetSystemInfo(SystemInfo);
end;

procedure TForm1.FormCreate(Sender: TObject);
var
  SystemInfo: TSystemInfo;
begin
Label13.Caption:= GetNativeSystemInfo(SystemInfo);
end;                    

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IsWindows64;