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library ExDouble;
uses
SysUtils,
Classes;
{$R *.res}
function calc_double(r: real): real; stdcall;
begin
result := 2;
end;
exports
calc_double index 1;
end.
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Edit1: TEdit;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
function calc_double(r: real): real; stdcall; external 'ExDouble.dll';
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
if Edit1.Text<>FloatToStr(calc_double(0))then
ShowMessage('')
else begin
ShowMessage('dsfgsdfg');
end;
end;
end.