interceptscreenproj_tlb.pas

用delphi开发的网页截屏控件,嵌入在网页中使用.

    property AutoSize: WordBool dispid 3;
    property AxBorderStyle: TxActiveFormBorderStyle dispid 4;
    property Caption: WideString dispid -518;
    property Color: OLE_COLOR dispid -501;
    property Font: IFontDisp dispid -512;
    property KeyPreview: WordBool dispid 5;
    property PixelsPerInch: Integer dispid 6;
    property PrintScale: TxPrintScale dispid 7;
    property Scaled: WordBool dispid 8;
    property Active: WordBool readonly dispid 9;
    property DropTarget: WordBool dispid 10;
    property HelpFile: WideString dispid 11;
    property DoubleBuffered: WordBool dispid 12;
    property AlignDisabled: WordBool readonly dispid 13;
    property VisibleDockClientCount: Integer readonly dispid 14;
    property Enabled: WordBool dispid -514;
    property Cursor: Smallint dispid 15;
    property HelpType: TxHelpType dispid 16;
    property HelpKeyword: WideString dispid 17;
    function  GetJpegString: WideString; dispid 18;
    procedure InterceptScreen; dispid 19;
    function  GetInternetTempFilePath: WideString; dispid 20;
  end;

// *********************************************************************//
// DispIntf:  IInterceptScreenEvents
// Flags:     (4096) Dispatchable
// GUID:      {3D56AB95-2F68-40B9-B15F-0BD86BBE194C}
// *********************************************************************//
  IInterceptScreenEvents = dispinterface
    ['{3D56AB95-2F68-40B9-B15F-0BD86BBE194C}']
    procedure OnActivate; dispid 1;
    procedure OnClick; dispid 2;
    procedure OnCreate; dispid 3;
    procedure OnDblClick; dispid 5;
    procedure OnDestroy; dispid 6;
    procedure OnDeactivate; dispid 7;
    procedure OnKeyPress(var Key: Smallint); dispid 11;
    procedure OnPaint; dispid 16;
  end;


// *********************************************************************//
// OLE Control Proxy class declaration
// Control Name     : TInterceptScreen
// Help String      : InterceptScreen Control
// Default Interface: IInterceptScreen
// Def. Intf. DISP? : No
// Event   Interface: IInterceptScreenEvents
// TypeFlags        : (34) CanCreate Control
// *********************************************************************//
  TInterceptScreenOnKeyPress = procedure(Sender: TObject; var Key: Smallint) of object;

  TInterceptScreen = class(TOleControl)
  private
    FOnActivate: TNotifyEvent;
    FOnClick: TNotifyEvent;
    FOnCreate: TNotifyEvent;
    FOnDblClick: TNotifyEvent;
    FOnDestroy: TNotifyEvent;
    FOnDeactivate: TNotifyEvent;
    FOnKeyPress: TInterceptScreenOnKeyPress;
    FOnPaint: TNotifyEvent;
    FIntf: IInterceptScreen;
    function  GetControlInterface: IInterceptScreen;
  protected
    procedure CreateControl;
    procedure InitControlData; override;
  public
    function  GetJpegString: WideString;
    procedure InterceptScreen;
    function  GetInternetTempFilePath: WideString;
    property  ControlInterface: IInterceptScreen read GetControlInterface;
    property  DefaultInterface: IInterceptScreen read GetControlInterface;
    property Visible: WordBool index 1 read GetWordBoolProp write SetWordBoolProp;
    property Active: WordBool index 9 read GetWordBoolProp;
    property DropTarget: WordBool index 10 read GetWordBoolProp write SetWordBoolProp;
    property HelpFile: WideString index 11 read GetWideStringProp write SetWideStringProp;
    property DoubleBuffered: WordBool index 12 read GetWordBoolProp write SetWordBoolProp;
    property AlignDisabled: WordBool index 13 read GetWordBoolProp;
    property VisibleDockClientCount: Integer index 14 read GetIntegerProp;
    property Enabled: WordBool index -514 read GetWordBoolProp write SetWordBoolProp;
  published
    property  ParentColor;
    property  ParentFont;
    property  Align;
    property  DragCursor;
    property  DragMode;
    property  ParentShowHint;
    property  PopupMenu;
    property  ShowHint;
    property  TabOrder;
    property  OnDragDrop;
    property  OnDragOver;
    property  OnEndDrag;
    property  OnEnter;
    property  OnExit;
    property  OnStartDrag;
    property AutoScroll: WordBool index 2 read GetWordBoolProp write SetWordBoolProp stored False;
    property AutoSize: WordBool index 3 read GetWordBoolProp write SetWordBoolProp stored False;
    property AxBorderStyle: TOleEnum index 4 read GetTOleEnumProp write SetTOleEnumProp stored False;
    property Caption: WideString index -518 read GetWideStringProp write SetWideStringProp stored False;
    property Color: TColor index -501 read GetTColorProp write SetTColorProp stored False;
    property Font: TFont index -512 read GetTFontProp write _SetTFontProp stored False;
    property KeyPreview: WordBool index 5 read GetWordBoolProp write SetWordBoolProp stored False;
    property PixelsPerInch: Integer index 6 read GetIntegerProp write SetIntegerProp stored False;
    property PrintScale: TOleEnum index 7 read GetTOleEnumProp write SetTOleEnumProp stored False;
    property Scaled: WordBool index 8 read GetWordBoolProp write SetWordBoolProp stored False;
    property Cursor: Smallint index 15 read GetSmallintProp write SetSmallintProp stored False;
    property HelpType: TOleEnum index 16 read GetTOleEnumProp write SetTOleEnumProp stored False;
    property HelpKeyword: WideString index 17 read GetWideStringProp write SetWideStringProp stored False;
    property OnActivate: TNotifyEvent read FOnActivate write FOnActivate;
    property OnClick: TNotifyEvent read FOnClick write FOnClick;
    property OnCreate: TNotifyEvent read FOnCreate write FOnCreate;
    property OnDblClick: TNotifyEvent read FOnDblClick write FOnDblClick;
    property OnDestroy: TNotifyEvent read FOnDestroy write FOnDestroy;
    property OnDeactivate: TNotifyEvent read FOnDeactivate write FOnDeactivate;
    property OnKeyPress: TInterceptScreenOnKeyPress read FOnKeyPress write FOnKeyPress;
    property OnPaint: TNotifyEvent read FOnPaint write FOnPaint;
  end;

procedure Register;

resourcestring
  dtlServerPage = 'Servers';

implementation

uses ComObj;

procedure TInterceptScreen.InitControlData;
const
  CEventDispIDs: array [0..7] of DWORD = (
    $00000001, $00000002, $00000003, $00000005, $00000006, $00000007,
    $0000000B, $00000010);
  CTFontIDs: array [0..0] of DWORD = (
    $FFFFFE00);
  CControlData: TControlData2 = (
    ClassID: '{0A94F797-C038-46EC-B8A2-9A2EFBFEA989}';
    EventIID: '{3D56AB95-2F68-40B9-B15F-0BD86BBE194C}';
    EventCount: 8;
    EventDispIDs: @CEventDispIDs;
    LicenseKey: nil (*HR:$00000000*);
    Flags: $0000001D;
    Version: 401;
    FontCount: 1;
    FontIDs: @CTFontIDs);
begin
  ControlData := @CControlData;
  TControlData2(CControlData).FirstEventOfs := Cardinal(@@FOnActivate) - Cardinal(Self);
end;

procedure TInterceptScreen.CreateControl;

  procedure DoCreate;
  begin
    FIntf := IUnknown(OleObject) as IInterceptScreen;
  end;

begin
  if FIntf = nil then DoCreate;
end;

function TInterceptScreen.GetControlInterface: IInterceptScreen;
begin
  CreateControl;
  Result := FIntf;
end;

function  TInterceptScreen.GetJpegString: WideString;
begin
  Result := DefaultInterface.GetJpegString;
end;

procedure TInterceptScreen.InterceptScreen;
begin
  DefaultInterface.InterceptScreen;
end;

function  TInterceptScreen.GetInternetTempFilePath: WideString;
begin
  Result := DefaultInterface.GetInternetTempFilePath;
end;

procedure Register;
begin
  RegisterComponents('ActiveX',[TInterceptScreen]);
end;

end.