Error: Undeclared identifier: '_event_onPaint'

Add(MainForm,7649955,294,238)
{
 Left=10
 Top=10
 Ctl3D=0
 Position=1
 Point(onPaint)
 Point(Handle)
 link(onCreate,12423105:doData,[])
}
Add(InlineCode,4633675,483,252)
{
 WorkPoints=#6:doLoad|9:doStretch|
 DataPoints=#8:FileName|6:Bitmap|
 Code=#15:unit HiAsmUnit;|0:|9:interface|0:|56:uses Windows,Messages,Share,Debug,ActiveX,KOLComObj,KOL;|0:|4:type|32:   IImgCtx = interface(IUnknown)|48:      ['{3050f3d7-98b5-11cf-bb82-00aa00bdce0b}']|40:      // Initialization/Download methods|68:      function Load(pszUrl:PWChar; dwFlags:DWORD): HResult; stdcall;|93:      function SelectChanges(ulChgOn:DWORD; ulChgOff:DWORD; fSignal:DWORD): HResult; stdcall;|83:      function SetCallback(pCallback:pointer; pUserData:pointer): HResult; stdcall;|44:      function Disconnect: HResult; stdcall;|0:|22:      // Query methods|95:      function GetUpdateRects(prc:PRect; var prcImg:TRect; var pcrc:integer): HResult; stdcall;|104:      function GetStateInfo(var pulState:DWORD; var pSize:TSize; fClearChanges:DWORD): HResult; stdcall;|64:      function GetPalette(var phpal:HPalette): HResult; stdcall;|0:|26:      // Rendering methods|69:      function Draw(_hdc:HDC; var prcBounds:TRect): HResult; stdcall;|107:      function Tile(_hdc:HDC; var pptBackOrg:TPoint; var prcClip:TRect; var psize:TSize): HResult; stdcall;|120:      function StretchBlt(_hdc:HDC; dstX,dstY,dstXE,dstYE,srcX,srcY,srcXE,srcYE:integer; dwROP:DWORD): HResult; stdcall;|5: end;|0:|28: THiAsmClass = class(TDebug)|10:   private|21:     FImgCtx:IImgCtx;|17:     hOK:THandle;|16:     sg:boolean;|14:     sz:TSize;|9:   public|31:     FileName,Bitmap:THI_Event;|47:     procedure doLoad(var Data:TData;idx:word);|50:     procedure doStretch(var Data:TData;idx:word);|5: end;|0:|14:implementation|0:|5:const|31:   IMGCHG_SIZE         = $0001;|31:   IMGCHG_VIEW         = $0002;|31:   IMGCHG_COMPLETE     = $0004;|31:   IMGCHG_ANIMATE      = $0008;|31:   IMGCHG_MASK         = $000F;|0:|35:   IMGLOAD_NOTLOADED   = $00100000;|35:   IMGLOAD_LOADING     = $00200000;|35:   IMGLOAD_STOPPED     = $00400000;|35:   IMGLOAD_ERROR       = $00800000;|35:   IMGLOAD_COMPLETE    = $01000000;|35:   IMGLOAD_MASK        = $01F00000;|0:|35:   IMGBITS_NONE        = $02000000;|35:   IMGBITS_PARTIAL     = $04000000;|35:   IMGBITS_TOTAL       = $08000000;|35:   IMGBITS_MASK        = $0E000000;|0:|35:   IMGANIM_ANIMATED    = $10000000;|35:   IMGANIM_MASK        = $10000000;|0:|35:   IMGTRANS_OPAQUE     = $20000000;|35:   IMGTRANS_MASK       = $20000000;|0:|35:   DWN_COLORMODE       = $0000003F;|35:   DWN_DOWNLOADONLY    = $00000040;|35:   DWN_FORCEDITHER     = $00000080;|35:   DWN_RAWIMAGE        = $00000100;|0:|66:   CLSID_IImgCtx:TGUID = '{3050f3d6-98b5-11cf-bb82-00aa00bdce0b}';|66:   IID_IImgCtx:TGUID   = '{3050f3d7-98b5-11cf-bb82-00aa00bdce0b}';|0:|0:|22:{ StringToWideString }|73:function StringToWideString(const s: String; codePage: Word): WideString;|17:var   l: integer;|5:begin|16:   Result := '';|23:   if s = '' then exit;|80:   l := MultiByteToWideChar(codePage, MB_PRECOMPOSED, PChar(@s[1]), -1, nil, 0);|28:   SetLength(Result, l - 1);|23:   if l <= 1 then exit;|93:   MultiByteToWideChar(CodePage, MB_PRECOMPOSED, PChar(@s[1]), -1, PWideChar(@Result[1]), l);|4:end;|0:|63:procedure MyCallback(pCtx:pointer; pUserData:pointer); stdcall;|5:begin|37:   THiAsmClass(pUserData).sg := true;|4:end;|0:|32:procedure THiAsmClass.doStretch;|41:var dt:TData; DC:hdc; R:TRect; Wnd:dword;|5:begin|23:   if not sg then exit;|31:   dt := ReadData(Data,Bitmap);|46:   if _isBitmap(dt) then with ToBitmap(dt)^ do|80:      FImgCtx.StretchBlt(Canvas.Handle,0,0,Width,Height,0,0,sz.cx,sz.cy,SRCCOPY)|14:   else begin |28:      Wnd := ToInteger(dt); |28:      if Wnd = 0 then exit; |29:      DC := GetWindowDC(Wnd);|27:      GetWindowRect(Wnd,R);|87:      FImgCtx.StretchBlt(DC,0,0,R.right-R.Left,R.bottom-R.Top,0,0,sz.cx,sz.cy,SRCCOPY);|24:      ReleaseDC(Wnd,DC);|10:   end;   |3:   |4:end;|0:|29:procedure THiAsmClass.doLoad;|25:var s:string; stat:dword;|5:begin|34:   s := ReadString(Data,FileName);|34:   if not FileExists(s) then exit;|56:   FImgCtx := CreateComObject(CLSID_IImgCtx) as IImgCtx;|52:   FImgCtx.Load(PWChar(StringToWideString(s,3)), 0);|56:   FImgCtx.SetCallback(@MyCallback, pointer(Self));     |46:   FImgCtx.SelectChanges(IMGCHG_COMPLETE,0,1);|15:   sg := false;|49:   while not sg do Applet.ProcessPendingMessages;|37:   FImgCtx.GetStateInfo(stat, sz, 0);|3:   |4:end;|0:|14:initialization|20:  CoInitialize(nil);|12:finalization|17:  CoUninitialize;|4:end.|
 link(Bitmap,14498594:Handle,[])
}
Add(DoData,12423105,350,252)
{
 Data=String(W:\Int\logo.jpg)
 link(onEventData,16707643:doEvent1,[])
}
Add(Hub,16707643,406,252)
{
 link(onEvent1,4633675:doLoad,[])
}
Add(Image,14498594,483,189)
{
 Width=392
 Height=266
 Align=5
 Color=16777215
 Point(Handle)
 Point(onPaint)
 link(onPaint,4633675:doStretch,[(527,202)(527,234)(471,234)(471,265)])
}

Bitmap := ToBitmap(dt);

with ToBitmap(dt)^ do

#pas
      procedure ClientRect;
      begin
         wsz := hRect.Right - hRect.Left;
         hsz := hRect.Bottom - hRect.Top;
         hw := x2 - x1;
         hh := y2 - y1;
         if  hw > (wsz - x1) then hw := wsz - x1;
         if  hh > (hsz - y1) then hh := hsz - y1;
         if (hw = 0) or (hh = 0) then begin
            x1 := 0;
            y1 := 0;
            hw := wsz;
            hh := hsz;
         end;
      end;

      procedure ClientRect;
      begin
         // получение полного размера главного окна (для Bitmap'a это -- Width, Height; тут может и тупо)
         wsz := hRect.Right - hRect.Left;
         hsz := hRect.Bottom - hRect.Top;
         // получение размеров окна вписывания
         hw := x2 - x1;
         hh := y2 - y1;
         // ограничение размера окна вписывания границами главного окна
         if  hw > (wsz - x1) then hw := wsz - x1;
         if  hh > (hsz - y1) then hh := hsz - y1;
         // если нет координат, то назначаем размер главного окна окну вписывания
         if (hw = 0) or (hh = 0) then begin
            x1 := 0;
            y1 := 0;
            hw := wsz;
            hh := hsz;
         end;
      end;