delphi 中判断windows系统是否是64位系统

最新推荐文章于 2023-10-11 11:47:24 发布

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本文介绍了一种检测当前运行的Windows系统是否为64位的方法。通过调用特定的API函数并结合条件判断，可以准确地判断系统架构。文章详细展示了如何使用Delphi代码实现这一功能。

function IsWin64: Boolean;
var
Kernel32Handle: THandle;
IsWow64Process: function(Handle:THandle; var Res:BOOL):BOOL; stdcall;
GetNativeSystemInfo: procedure(var lpSystemInfo: TSystemInfo); stdcall;
isWoW64: Bool;
SystemInfo: TSystemInfo;

const
    PROCESSOR_ARCHITECTURE_AMD64 = 9;
    PROCESSOR_ARCHITECTURE_IA64 = 6;
begin
Kernel32Handle := GetModuleHandle('KERNEL32.DLL');
if Kernel32Handle = 0 then
    Kernel32Handle := LoadLibrary('KERNEL32.DLL');
if Kernel32Handle <> 0 then
begin
    IsWOW64Process := GetProcAddress(Kernel32Handle,'IsWow64Process');
    //需要注意是GetNativeSystemInfo 函数从Windows XP 开始才有，
    //而 IsWow64Process 函数从 Windows XP with SP2 以及 Windows Server 2003 with SP1 开始才有。
    //所以使用该函数的时候最好用GetProcAddress 。
    GetNativeSystemInfo := GetProcAddress(Kernel32Handle,'GetNativeSystemInfo');
    if Assigned(IsWow64Process) then
    begin
      IsWow64Process(GetCurrentProcess,isWoW64);
      Result := isWoW64 and Assigned(GetNativeSystemInfo);
      if Result then
      begin
        GetNativeSystemInfo(SystemInfo);
        Result := (SystemInfo.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_AMD64) or
                  (SystemInfo.wProcessorArchitecture = PROCESSOR_ARCHITECTURE_IA64);
      end;
    end
    else
      Result := False;
end
else
    Result := False;
end;