How do I check for Administrator?

[Aarif]

I need to make sure that the person logged in has administrator access because of other third party drivers I need to install. I only care about this for WinNT/2K/XP. For Win95/98/ME, it can install without checking. How would I go about checking that? Is there some sort of registry setting I can check?

Thanks,
Aarif

[yazno]

hi,

there is no registry setting you can check as that is handled by advapi32.dll; so that is (AFAIK) not yet possible with nsis.

cu yzo

[Koen van de Sande]

Yes, this sounds like an option which should be added to NSIS. Speaking of NSIS, where's justin?
I guess he's busy on WA3.

[yazno]

hi,

maybe someone could implement this into nsis:

code:




// Returns True if logged on as admin

// always Returns True on Win9x



type

  HNDL = THandle;



function OpenSCManager(lpMachineName, lpDatabaseName:

  PChar; dwDesiredAccess: DWORD): HNDL; stdcall;

  external 'advapi32.dll' name 'OpenSCManagerA';



function CloseServiceHandle(hSCObject: HNDL): BOOL;

  stdcall; external 'advapi32.dll' name

  'CloseServiceHandle';



function IsAdminLoggedOn: Boolean;

var

  hndlSC: HNDL;

begin

  if Win32Platform <> VER_PLATFORM_WIN32_NT then

    Result := True

  else

    begin

      hndlSC := OpenSCManager(nil, nil, GENERIC_READ or GENERIC_WRITE or

        GENERIC_EXECUTE);

      Result := hndlSC <> 0;

      if Result then CloseServiceHandle(hndlSC)

    end

end;

my c knowledge is not that good to do that

cu yzo

[Aarif]

Thanks yazno.

I have modified the source code (probably about 10 lines of code) to implement a new command "IfAdmin" using the code supplied by yazno. The command works like "IfErrors". If anyone is interrested in the changes, let me know, and I will post them here.

Thanks again to yazno.

Aarif

[yazno]

hi,

that is cool, maybe you could send the source/changes to justin, so we could all take advantage of it

cu yzo

[Aarif]

How do I send the changes to Justin?

Aarif

[yazno]

hi

just send it to justin@nullsoft.com

cu yzo