Вот библиотека:
library Project2;
{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }
uses
SysUtils,
Classes;
{$R *.res}
TYPE
nd= ^node;
node= record
inf1: integer;
inf2: string[20];
left: nd;
right: nd;
end;
procedure kol_sheet(var a:nd; i, nur: integer; var k:integer);StdCall;
begin
if a<>nil then
begin
kol_sheet(a^.left, i+1, nur, k);
if (i=nur) and (a^.left=a^.right) then inc(k);
kol_sheet(a^.right,i+1, nur, k);
end;
end;
EXPORTS KOL_SHEET ;
end.
Вот подключение и вызов:
unit Unit4;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Grids, ComCtrls, ExtCtrls, Menus;
type
nd= ^node;
node= record
inf1: integer;
inf2: string[20];
left: nd;
right: nd;
end;
Tkol_sheet=procedure(var a:nd; i, nur: integer; var k:integer);StdCall;
TForm4 = class(TForm)
procedure Button10Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form4: TForm4;
KOL_SHEET: TKOL_SHEET;
implementation
uses Unit2, Unit3, Unit1;
{$R *.dfm}
procedure TForm4.Button10Click(Sender: TObject);
var k,nur,H: integer;
begin
try
K:=0;
strtoint(edit5.Text);
If (edit5.Text='')
then showmessage('Введите данные!')
else begin
H:=loadLibrary ( 'PROJECT2.DLL');
IF H<>0
THEN BEGIN
@KOL_SHEET := getProcAddress ( H, 'KOL_SHEET' );
if @KOL_SHEET <> nil then kol_sheet(root,i,nur,k);
FreeLibrary(h);
END;
Edit6.text:=inttostr(k);
end;
except showmessage('Неправильный ввод!');
end;
END;
end.
Может вы найдете ошибку... заранее спасибо!