判断当前进程是否以管理员权限启动的

uses
 shlobj;
type
 WELL_KNOWN_SID_TYPE = (
 WinNullSid,
 WinWorldSid,
 WinLocalSid,
 WinCreatorOwnerSid,
 WinCreatorGroupSid,
 WinCreatorOwnerServerSid,
 WinCreatorGroupServerSid,
 WinNtAuthoritySid,
 WinDialupSid,
 WinNetworkSid,
 WinBatchSid,
 WinInteractiveSid,
 WinServiceSid,
 WinAnonymousSid,
 WinProxySid,
 WinEnterpriseControllersSid,
 WinSelfSid,
 WinAuthenticatedUserSid,
 WinRestrictedCodeSid,
 WinTerminalServerSid,
 WinRemoteLogonIdSid,
 WinLogonIdsSid,
 WinLocalSystemSid,
 WinLocalServiceSid,
 WinNetworkServiceSid,
 WinBuiltinDomainSid,
 WinBuiltinAdministratorsSid,
 WinBuiltinUsersSid,
 WinBuiltinGuestsSid,
 WinBuiltinPowerUsersSid,
 WinBuiltinAccountOperatorsSid,
 WinBuiltinSystemOperatorsSid,
 WinBuiltinPrintOperatorsSid,
 WinBuiltinBackupOperatorsSid,
 WinBuiltinReplicatorSid,
 WinBuiltinPreWindows2000CompatibleAccessSid,
 WinBuiltinRemoteDesktopUsersSid,
 WinBuiltinNetworkConfigurationOperatorsSid,
 WinAccountAdministratorSid,
 WinAccountGuestSid,
 WinAccountKrbtgtSid,
 WinAccountDomainAdminsSid,
 WinAccountDomainUsersSid,
 WinAccountDomainGuestsSid,
 WinAccountComputersSid,
 WinAccountControllersSid,
 WinAccountCertAdminsSid,
 WinAccountSchemaAdminsSid,
 WinAccountEnterpriseAdminsSid,
 WinAccountPolicyAdminsSid,
 WinAccountRasAndIasServersSid,
 WinNTLMAuthenticationSid,
 WinDigestAuthenticationSid,
 WinSChannelAuthenticationSid,
 WinThisOrganizationSid,
 WinOtherOrganizationSid,
 WinBuiltinIncomingForestTrustBuildersSid,
 WinBuiltinPerfMonitoringUsersSid,
 WinBuiltinPerfLoggingUsersSid,
 WinBuiltinAuthorizationAccessSid,
 WinBuiltinTerminalServerLicenseServersSid);
{$EXTERNALSYM WELL_KNOWN_SID_TYPE}
 TWellKnownSidType = WELL_KNOWN_SID_TYPE;

function CreateWellKnownSid(WellKnownSidType: WELL_KNOWN_SID_TYPE; DomainSid: PSID;
 pSid: PSID; var cbSid: DWORD): BOOL; stdcall;external advapi32 name 'CreateWellKnownSid';
function CheckTokenMembership(TokenHandle: THANDLE; SidToCheck: PSID; var IsMember: BOOL): BOOL; stdcall; external advapi32 name 'CheckTokenMembership';
 Function GetProcessElevation(var pElevationType: TTokenElevationType;
var pIsAdmin: LongBool): Boolean;
const
 SECURITY_MAX_SID_SIZE = 68;
 VAR
 hToken: THandle;
 r: Cardinal;
 adminSID: array [0 .. SECURITY_MAX_SID_SIZE - 1] of byte;
 sidSize: Cardinal;
 e: Integer;
 hUnfilteredToken: THandle;
 Begin
 Result := False;
 sidSize := SizeOf(adminSID);
if OpenProcessToken(GetCurrentProcess, TOKEN_QUERY, hToken) and
 Windows.GetTokenInformation(hToken, Windows.TokenElevationType,
 @pElevationType, SizeOf(pElevationType), r) and
 CreateWellKnownSid(WinBuiltinAdministratorsSid, nil, PSid(@adminSID),
 sidSize) then
begin
case pElevationType of
 TokenElevationTypeLimited:
begin
if GetTokenInformation(hToken, TokenLinkedToken, @hUnfilteredToken,
 SizeOf(hUnfilteredToken), r) and
 (CheckTokenMembership(hUnfilteredToken, PSid(@adminSID),
 pIsAdmin)) then
begin
 Result := true;
 CloseHandle(hUnfilteredToken);
end;
end;

else
begin
 pIsAdmin := IsUserAnAdmin();
 Result := true;
end;
end;
end
else
begin
 e := GetLastError();
if e = 0 then
begin
 GetTickCount;
end;
end;
 CloseHandle(hToken);

End;

调用示例:

procedure TForm4.Button1Click(Sender: TObject);
var
 pIsAdmin: LongBool;
 pElevationType: TTokenElevationType;
begin
if GetProcessElevation(pElevationType, pIsAdmin) then
begin
case pElevationType of
 TokenElevationTypeLimited:
 ShowMessage('这是一个受限用户');
 TokenElevationTypeFull:
 ShowMessage('这是一个拥有管理员权限的用户');
 TokenElevationTypeDefault:
 ShowMessage('这是一个默认的用户');
end;
end;
end;