Файл описания динамической библиотеки About.dpr

library About;

{ 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,

Forms,

UnitAbout in 'UnitAbout.pas' {FormAbout};

{$R *.res}

//показать форму

procedure ShowAbout(AOwner:TComponent);

var

Form:TFormAbout;

begin

Form:=TFormAbout.Create(AOwner); //создать форму

Form.ShowModal; //показать форму

Form.Free; //уничтожить форму

end;

exports ShowAbout;

begin

end.

unit UnitAbout;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls, ExtCtrls, XPMan, Buttons;

type

TFormAbout = class(TForm)

Image1: TImage;

Label1: TLabel;

Label2: TLabel;

Label3: TLabel;

Label4: TLabel;

BitBtn1: TBitBtn;

Label5: TLabel;

XPManifest1: TXPManifest;

procedure BitBtn1Click(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

FormAbout: TFormAbout;

implementation

{$R *.dfm}

procedure TFormAbout.BitBtn1Click(Sender: TObject);

begin

Close;

end;

end.

Файл описания динамической библиотеки Prompt.dpr

library Prompt;

{ 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,

Windows,

UnitPrompt in 'UnitPrompt.pas' {FormPrompt};

{$R *.res}

//Показать заставку

procedure ShowPrompt(AOwner:TComponent);

var

Time:extended;

Form:TFormPrompt;

begin

Form:=TFormPrompt.Create(AOwner); //Создать форму

Time:=GetTickCount/1000; //Запомнить время

Form.Show; //Показать форму

Form.Repaint; //Перерисовать форму

//Пока не вышел лимит времени - ничего не делать

while GetTickCount/1000<Time+4 do;

Form.Close; //Закрыть форму

Form.Free; //Уничтожить форму

end;

exports ShowPrompt;

begin

end.

unit UnitPrompt;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, ExtCtrls, XPMan;

type

TFormPrompt = class(TForm)

XPManifest1: TXPManifest;

Image1: TImage;

private

{ Private declarations }

public

{ Public declarations }

end;

var

FormPrompt: TFormPrompt;

implementation

{$R *.dfm}

end.

Файл проекта COM-сервера - MyServer.dpr

library MyServer;

{ 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,

ComServ,

UComRiad in 'UComRiad.pas',

UCom_Tlb in 'UCom_Tlb.pas',

Classes,

MyServer_TLB in 'MyServer_TLB.pas';

exports

DllGetClassObject,

DllCanUnloadNow,

DllRegisterServer,

DllUnregisterServer;

{$R *.TLB}

{$R *.res}

begin

end.

Файл описания COM- класса - UComRiad.pas

unit UComRiad;

{$WARN SYMBOL_PLATFORM OFF}

interface

uses

Windows, ActiveX, Classes, ComObj, Chart, Grids, Math, SysUtils, IniFiles,

UCom_Tlb, ExtCtrls;

type

TRiad = class(TComObject, IComRiad)

protected

IniFile : TIniFile; //Объект Ini-файла

w : integer;

public

Procedure Create(AIniFileName : string); stdcall;

Destructor Destroy;

procedure Graphic(AChart:TChart); stdcall; //Постоение графика

procedure Table(AStringGrid:TStringGrid); stdcall; //Вывод в таблицу

procedure WriteToIniFile; stdcall; //Запись в Ini-файл

procedure ReadFromIniFile; stdcall; //Чтение из Ini-файла

function GetW : integer; stdcall; //Получить w

procedure SetW; stdcall; //Установить w

function F(w:integer; t:extended):extended;stdcall;//Вычисление суммы

private

end;

implementation

uses ComServ, Dialogs, Graphics, UnitMain;

const P=500;

const x=1;

const TimeStart=0; //Время начала отсчета

const TimeEnd=100; //Время окончания отсчета

const TimeStep=0.5; //Шаг дискретизация времени

Procedure TRiad.Create(AIniFileName : string);

begin

//Создать объект Ini-файла

IniFile:= TIniFile.Create(AIniFileName);

end;//TRod.Create

Destructor TRiad.Destroy;

begin //Не используется

//Удалить из Heap объект Ini-файла

if Assigned(IniFile) then

begin

IniFile.Free;

IniFile:= NIL;

end;

end;//TRod.Create

procedure TRiad.Graphic(AChart : TChart);

//Построение графика

var

time : extended;

Y1, Y2 : extended;

begin

Time:= TimeStart;

AChart.Series[0].Clear; //Очистить Series[0]

AChart.Series[1].Clear; //Очистить Series[1]

AChart.BottomAxis.Increment:= Floor((TimeEnd - TimeStart) / 5);

//Занести значения в Series

while(time <= TimeEnd) do

begin

Y1:= F(w,time);

Y2:= F(w,time);

AChart.Series[0].AddXY(time, Y1);

AChart.Series[1].AddXY(time, Y2);

time:= time + TimeStep / 4;

end;

end;//TRiad.Graphic

function TRiad.F(w : integer;t : extended) : extended;

//вычисление функции

var

j:integer;

begin

F:=(2*P/x)*(sin(w*t)-1/2*sin(2*w*t)+1/3*sin(3*w*t)-1/4*sin(4*w*t))

end;//TRiad.F

procedure TRiad.Table(AStringGrid : TStringGrid);

//Вывод информации в таблицу

var

k : integer;

time : extended;

y: extended;

begin

k:= 0;

time:= TimeStart;

while (time <= TimeEnd) do

begin

inc(k);

y:= F(w, time);

Form1.StringGrid1.Cells[2,k]:= FloatToStrF(y , ffFixed, 5, 3);

time:= time + TimeStep;

end;

end;//TRiad.Table

procedure TRiad.WriteToIniFile;

//запись в Ini-файл

begin

IniFile.WriteInteger('Parameters', 'W', W);

IniFile.UpdateFile;//очистка буфера и запись файла на диск

end;//TRiad.WriteToIniFile

procedure TRiad.ReadFromIniFile;

//чтение из Ini-файла

begin

W:= IniFile.ReadInteger('Parameters', 'W', w);

end;//TRiad.ReadFromIniFile

function TRiad.GetW :integer;

begin

result:= W;

end;//TRiad.GetW

procedure TRiad.SetW;

begin

if Form1.RadioGroup1.ItemIndex=-1 then

MessageDlg(Pchar('Не выбрано значение w!!!'),mtError,[mbOk],0);

if Form1.RadioGroup1.ItemIndex =0 then

begin

Form1.Label10.Caption:='1';

w:=1;

end

else if Form1.RadioGroup1.ItemIndex =1 then

begin

Form1.label10.Caption:='3';

w:=3;

end

else

begin

Form1.label10.Caption:='5';

w:=5;

end ;

end;//TRiad.SetW

initialization

TComObjectFactory.Create(ComServer, TRiad, Class_ServerRiad,

'ServerRiad', '', ciMultiInstance, tmApartment);

end.

Файл библиотеки типов COM- класса - Ucom_Tlb.pas

unit UCom_Tlb;

interface

uses Chart, Grids, StdCtrls, ExtCtrls;

const

Class_ServerRiad: TGUID = '{1CB7B26E-5BAF-4BA7-8F17-EA174D7CD750}';

Type

IComRiad = interface

['{1326DD83-DB3E-4054-9572-CFB9EAE3FE95}']

Procedure Create(AIniFileName : string); stdcall;

procedure Graphic(AChart:TChart); stdcall; //Постоение графика

procedure Table(AStringGrid:TStringGrid); stdcall; //Вывод в таблицу

procedure WriteToIniFile; stdcall; //Запись в Ini-файл

procedure ReadFromIniFile; stdcall; //Чтение из Ini-файла

function Getw : integer; stdcall; //Получить w

procedure Setw; stdcall; //Установить w

function F(w:integer; t:extended):extended;stdcall;//Вычисление суммы

end;

implementation

end.

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