f_myactivex.pas

Delphi basic program. Basic programing guide for delphi language. Several samples are giving.

unit f_myActiveX;

{$WARN SYMBOL_PLATFORM OFF}

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  ActiveX, AxCtrls, p_myActiveX_TLB, StdVcl, ExtCtrls, Menus, ExtDlgs;

type
  TmyActiveX = class(TActiveForm, ImyActiveX)
    Panel1: TPanel;
    ScrollBox1: TScrollBox;
    Image1: TImage;
    PopupMenu1: TPopupMenu;
    N1: TMenuItem;
    N2: TMenuItem;
    N3: TMenuItem;
    N4: TMenuItem;
    N5: TMenuItem;
    OpenPictureDialog1: TOpenPictureDialog;
    SavePictureDialog1: TSavePictureDialog;
    ColorDialog1: TColorDialog;
    procedure N1Click(Sender: TObject);
    procedure N2Click(Sender: TObject);
    procedure N3Click(Sender: TObject);
    procedure N4Click(Sender: TObject);
    procedure N5Click(Sender: TObject);
  private
    { Private declarations }
    FEvents: ImyActiveXEvents;
    procedure ActivateEvent(Sender: TObject);
    procedure ClickEvent(Sender: TObject);
    procedure CreateEvent(Sender: TObject);
    procedure DblClickEvent(Sender: TObject);
    procedure DeactivateEvent(Sender: TObject);
    procedure DestroyEvent(Sender: TObject);
    procedure KeyPressEvent(Sender: TObject; var Key: Char);
    procedure PaintEvent(Sender: TObject);
  protected
    { Protected declarations }
    procedure DefinePropertyPages(DefinePropertyPage: TDefinePropertyPage); override;
    procedure EventSinkChanged(const EventSink: IUnknown); override;
    function Get_Active: WordBool; safecall;
    function Get_AlignDisabled: WordBool; safecall;
    function Get_AutoScroll: WordBool; safecall;
    function Get_AutoSize: WordBool; safecall;
    function Get_AxBorderStyle: TxActiveFormBorderStyle; safecall;
    function Get_Caption: WideString; safecall;
    function Get_Color: OLE_COLOR; safecall;
    function Get_DoubleBuffered: WordBool; safecall;
    function Get_DropTarget: WordBool; safecall;
    function Get_Enabled: WordBool; safecall;
    function Get_Font: IFontDisp; safecall;
    function Get_HelpFile: WideString; safecall;
    function Get_KeyPreview: WordBool; safecall;
    function Get_PixelsPerInch: Integer; safecall;
    function Get_PrintScale: TxPrintScale; safecall;
    function Get_Scaled: WordBool; safecall;
    function Get_ScreenSnap: WordBool; safecall;
    function Get_SnapBuffer: Integer; safecall;
    function Get_Visible: WordBool; safecall;
    function Get_VisibleDockClientCount: Integer; safecall;
    procedure _Set_Font(var Value: IFontDisp); safecall;
    procedure AboutBox; safecall;
    procedure Set_AutoScroll(Value: WordBool); safecall;
    procedure Set_AutoSize(Value: WordBool); safecall;
    procedure Set_AxBorderStyle(Value: TxActiveFormBorderStyle); safecall;
    procedure Set_Caption(const Value: WideString); safecall;
    procedure Set_Color(Value: OLE_COLOR); safecall;
    procedure Set_DoubleBuffered(Value: WordBool); safecall;
    procedure Set_DropTarget(Value: WordBool); safecall;
    procedure Set_Enabled(Value: WordBool); safecall;
    procedure Set_Font(const Value: IFontDisp); safecall;
    procedure Set_HelpFile(const Value: WideString); safecall;
    procedure Set_KeyPreview(Value: WordBool); safecall;
    procedure Set_PixelsPerInch(Value: Integer); safecall;
    procedure Set_PrintScale(Value: TxPrintScale); safecall;
    procedure Set_Scaled(Value: WordBool); safecall;
    procedure Set_ScreenSnap(Value: WordBool); safecall;
    procedure Set_SnapBuffer(Value: Integer); safecall;
    procedure Set_Visible(Value: WordBool); safecall;
  public
    { Public declarations }
    procedure Initialize; override;
  end;

implementation

uses ComObj, ComServ, About1;

{$R *.DFM}

{ TmyActiveX }

procedure TmyActiveX.DefinePropertyPages(DefinePropertyPage: TDefinePropertyPage);
begin
  { Define property pages here.  Property pages are defined by calling
    DefinePropertyPage with the class id of the page.  For example,
      DefinePropertyPage(Class_myActiveXPage); }
end;

procedure TmyActiveX.EventSinkChanged(const EventSink: IUnknown);
begin
  FEvents := EventSink as ImyActiveXEvents;
  inherited EventSinkChanged(EventSink);
end;

procedure TmyActiveX.Initialize;
begin
  inherited Initialize;
  OnActivate := ActivateEvent;
  OnClick := ClickEvent;
  OnCreate := CreateEvent;
  OnDblClick := DblClickEvent;
  OnDeactivate := DeactivateEvent;
  OnDestroy := DestroyEvent;
  OnKeyPress := KeyPressEvent;
  OnPaint := PaintEvent;
end;

function TmyActiveX.Get_Active: WordBool;
begin
  Result := Active;
end;

function TmyActiveX.Get_AlignDisabled: WordBool;
begin
  Result := AlignDisabled;
end;

function TmyActiveX.Get_AutoScroll: WordBool;
begin
  Result := AutoScroll;
end;

function TmyActiveX.Get_AutoSize: WordBool;
begin
  Result := AutoSize;
end;

function TmyActiveX.Get_AxBorderStyle: TxActiveFormBorderStyle;
begin
  Result := Ord(AxBorderStyle);
end;

function TmyActiveX.Get_Caption: WideString;
begin
  Result := WideString(Caption);
end;

function TmyActiveX.Get_Color: OLE_COLOR;
begin
  Result := OLE_COLOR(Color);
end;

function TmyActiveX.Get_DoubleBuffered: WordBool;
begin
  Result := DoubleBuffered;
end;

function TmyActiveX.Get_DropTarget: WordBool;
begin
  Result := DropTarget;
end;

function TmyActiveX.Get_Enabled: WordBool;
begin
  Result := Enabled;
end;

function TmyActiveX.Get_Font: IFontDisp;
begin
  GetOleFont(Font, Result);
end;

function TmyActiveX.Get_HelpFile: WideString;
begin
  Result := WideString(HelpFile);
end;

function TmyActiveX.Get_KeyPreview: WordBool;
begin
  Result := KeyPreview;
end;

function TmyActiveX.Get_PixelsPerInch: Integer;
begin
  Result := PixelsPerInch;
end;

function TmyActiveX.Get_PrintScale: TxPrintScale;
begin
  Result := Ord(PrintScale);
end;

function TmyActiveX.Get_Scaled: WordBool;
begin
  Result := Scaled;
end;

function TmyActiveX.Get_ScreenSnap: WordBool;
begin
  Result := ScreenSnap;
end;

function TmyActiveX.Get_SnapBuffer: Integer;
begin
  Result := SnapBuffer;
end;

function TmyActiveX.Get_Visible: WordBool;
begin
  Result := Visible;
end;

function TmyActiveX.Get_VisibleDockClientCount: Integer;
begin
  Result := VisibleDockClientCount;
end;

procedure TmyActiveX._Set_Font(var Value: IFontDisp);
begin
  SetOleFont(Font, Value);
end;

procedure TmyActiveX.AboutBox;
begin
  ShowmyActiveXAbout;
end;

procedure TmyActiveX.ActivateEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnActivate;
end;

procedure TmyActiveX.ClickEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnClick;
end;

procedure TmyActiveX.CreateEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnCreate;
end;

procedure TmyActiveX.DblClickEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnDblClick;
end;

procedure TmyActiveX.DeactivateEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnDeactivate;
end;

procedure TmyActiveX.DestroyEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnDestroy;
end;

procedure TmyActiveX.KeyPressEvent(Sender: TObject; var Key: Char);
var
  TempKey: Smallint;
begin
  TempKey := Smallint(Key);
  if FEvents <> nil then FEvents.OnKeyPress(TempKey);
  Key := Char(TempKey);
end;

procedure TmyActiveX.PaintEvent(Sender: TObject);
begin
  if FEvents <> nil then FEvents.OnPaint;
end;

procedure TmyActiveX.Set_AutoScroll(Value: WordBool);
begin
  AutoScroll := Value;
end;

procedure TmyActiveX.Set_AutoSize(Value: WordBool);
begin
  AutoSize := Value;
end;

procedure TmyActiveX.Set_AxBorderStyle(Value: TxActiveFormBorderStyle);
begin
  AxBorderStyle := TActiveFormBorderStyle(Value);
end;

procedure TmyActiveX.Set_Caption(const Value: WideString);
begin
  Caption := TCaption(Value);
end;

procedure TmyActiveX.Set_Color(Value: OLE_COLOR);
begin
  Color := TColor(Value);
end;

procedure TmyActiveX.Set_DoubleBuffered(Value: WordBool);
begin
  DoubleBuffered := Value;
end;

procedure TmyActiveX.Set_DropTarget(Value: WordBool);
begin
  DropTarget := Value;
end;

procedure TmyActiveX.Set_Enabled(Value: WordBool);
begin
  Enabled := Value;
end;

procedure TmyActiveX.Set_Font(const Value: IFontDisp);
begin
  SetOleFont(Font, Value);
end;

procedure TmyActiveX.Set_HelpFile(const Value: WideString);
begin
  HelpFile := String(Value);
end;

procedure TmyActiveX.Set_KeyPreview(Value: WordBool);
begin
  KeyPreview := Value;
end;

procedure TmyActiveX.Set_PixelsPerInch(Value: Integer);
begin
  PixelsPerInch := Value;
end;

procedure TmyActiveX.Set_PrintScale(Value: TxPrintScale);
begin
  PrintScale := TPrintScale(Value);
end;

procedure TmyActiveX.Set_Scaled(Value: WordBool);
begin
  Scaled := Value;
end;

procedure TmyActiveX.Set_ScreenSnap(Value: WordBool);
begin
  ScreenSnap := Value;
end;

procedure TmyActiveX.Set_SnapBuffer(Value: Integer);
begin
  SnapBuffer := Value;
end;

procedure TmyActiveX.Set_Visible(Value: WordBool);
begin
  Visible := Value;
end;

procedure TmyActiveX.N1Click(Sender: TObject);
begin
if openpicturedialog1.Execute then
  image1.Picture.LoadFromFile(openpicturedialog1.FileName);
end;

procedure TmyActiveX.N2Click(Sender: TObject);
begin
if colordialog1.Execute then
  scrollbox1.Color := colordialog1.Color;
end;

procedure TmyActiveX.N3Click(Sender: TObject);
begin
if savepicturedialog1.Execute then
  image1.Picture.SaveToFile(savepicturedialog1.FileName);
end;

procedure TmyActiveX.N4Click(Sender: TObject);
begin
  image1.AutoSize := false;
  image1.Width := scrollbox1.ClientWidth;
  image1.Height := scrollbox1.ClientHeight;
  image1.Stretch := true;
  image1.Refresh;
end;

procedure TmyActiveX.N5Click(Sender: TObject);
begin
  image1.Stretch := false;
  image1.AutoSize := true;
  image1.Refresh;
end;

initialization
  TActiveFormFactory.Create(
    ComServer,
    TActiveFormControl,
    TmyActiveX,
    Class_myActiveX,
    1,
    '',
    OLEMISC_SIMPLEFRAME or OLEMISC_ACTSLIKELABEL,
    tmApartment);
end.