VC静态调用DELPHI DLL

Delphi(Pascal) code:
library Smart;

uses
SysUtils,
Classes,
Forms,
Dialogs,
Windows,
SmartWord in 'SmartWord.pas' {frmSmartWord},
pub in 'pub.pas';

{$R *.res}

var
AppDLL:TApplication;
ScrDLL:TScreen;

//
procedure MyDLLProc(Reason:Integer);
begin
try
if Reason=DLL_PROCESS_DETACH then
begin
Application:=AppDLL;
Screen:=ScrDLL;
end;
except
on e:Exception do
begin
ShowMessage(e.Message);
end;
end;
end;

//function SmartWord(App:TApplication;Scr:TScreen;DoctorName,UserName:PChar):Boolean;stdcall;
function SmartWord(DoctorName,UserName:PChar):Boolean;stdcall;
begin
//Application:=App;
//ScrDLL:=Screen;
//showmessage(doctorname);
//showmessage(username);
sDoctorName:=DoctorName;
sUserName:=UserName;
if not Assigned(frmSmartWord) then
Application.CreateForm(TfrmSmartWord,frmSmartWord);
frmSmartWord.Show;
end;

exports
SmartWord;

begin
try
AppDLL:=Application;
ScrDLL:=Screen;
DLLProc:=@MyDLLProc;
except
on e:Exception do
ShowMessage(e.Message);
end;
end.

用delphi来静态调用没有问题
Delphi(Pascal) code:
function SmartWord(DoctorName,UserName:PChar):Boolean;stdcall;ex