{$IFDEF RX_D3}
    procedure CloseFindDialog(Dialog: TFindDialog); virtual;
    procedure DoSetMaxLength(Value: Integer); override;
    function GetSelLength: Integer; override;
    function GetSelStart: Integer; override;
    function GetSelText: string; override;
    procedure SetSelLength(Value: Integer); override;
    procedure SetSelStart(Value: Integer); override;
    property AllowInPlace: Boolean read FAllowInPlace write FAllowInPlace default True;
{$ENDIF}
    property AllowObjects: Boolean read FAllowObjects write SetAllowObjects default True;
    property AutoURLDetect: Boolean read GetAutoURLDetect write SetAutoURLDetect default True;
    property AutoVerbMenu: Boolean read FAutoVerbMenu write FAutoVerbMenu default True;
    property HideSelection: Boolean read FHideSelection write SetHideSelection default True;
    property HideScrollBars: Boolean read FHideScrollBars
      write SetHideScrollBars default True;
    property Title: string read FTitle write SetTitle;
    property LangOptions: TRichLangOptions read GetLangOptions write SetLangOptions default [rlAutoFont];
    property Lines: TStrings read FRichEditStrings write SetRichEditStrings;
    property PlainText: Boolean read FPlainText write SetPlainText default False;
    property SelectionBar: Boolean read FSelectionBar write SetSelectionBar default True;
    property StreamFormat: TRichStreamFormat read GetStreamFormat write SetStreamFormat default sfDefault;
    property StreamMode: TRichStreamModes read GetStreamMode write SetStreamMode default [];
    property UndoLimit: Integer read FUndoLimit write SetUndoLimit default 100;
    property WordSelection: Boolean read GetWordSelection write SetWordSelection default True;
    property ScrollBars default ssBoth;
    property TabStop default True;
    property OnSaveClipboard: TRichEditSaveClipboard read FOnSaveClipboard
      write FOnSaveClipboard;
    property OnSelectionChange: TNotifyEvent read FOnSelChange write FOnSelChange;
    property OnProtectChange: TRichEditProtectChange read FOnProtectChange
      write FOnProtectChange; { obsolete }
    property OnProtectChangeEx: TRichEditProtectChangeEx read FOnProtectChangeEx
      write FOnProtectChangeEx;
    property OnResizeRequest: TRichEditResizeEvent read FOnResizeRequest
      write FOnResizeRequest;
    property OnURLClick: TRichEditURLClickEvent read FOnURLClick write FOnURLClick;
    property OnTextNotFound: TRichEditFindErrorEvent read FOnTextNotFound write FOnTextNotFound;
{$IFDEF RX_D3}
    property OnCloseFindDialog: TRichEditFindCloseEvent read FOnCloseFindDialog
      write FOnCloseFindDialog;
{$ENDIF}
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure Clear; {$IFDEF RX_D3} override; {$ENDIF}
    procedure SetSelection(StartPos, EndPos: Longint; ScrollCaret: Boolean);
    function GetSelection: TCharRange;
    function GetTextRange(StartPos, EndPos: Longint): string;
    function LineFromChar(CharIndex: Integer): Integer;
    function GetLineIndex(LineNo: Integer): Integer;
    function GetLineLength(CharIndex: Integer): Integer;
    function WordAtCursor: string;
    function FindText(const SearchStr: string;
      StartPos, Length: Integer; Options: TRichSearchTypes): Integer;
    function GetSelTextBuf(Buffer: PChar; BufSize: Integer): Integer;
      {$IFDEF RX_D3} override; {$ENDIF}
    function GetCaretPos: TPoint; {$IFDEF RX_V110} override; {$ENDIF}
    function GetCharPos(CharIndex: Integer): TPoint;
    function InsertObjectDialog: Boolean;
    function ObjectPropertiesDialog: Boolean;
    function PasteSpecialDialog: Boolean;
    function FindDialog(const SearchStr: string): TFindDialog;
    function ReplaceDialog(const SearchStr, ReplaceStr: string): TReplaceDialog;
    function FindNext: Boolean;
    procedure Print(const Caption: string); virtual;
    class procedure RegisterConversionFormat(const AExtension: string;
      APlainText: Boolean; AConversionClass: TConversionClass);
    procedure ClearUndo;
    procedure Redo;
    procedure StopGroupTyping;
    property CanFindNext: Boolean read GetCanFindNext;
    property CanRedo: Boolean read GetCanRedo;
    property CanPaste: Boolean read GetCanPaste;
{$IFNDEF RX_V110}
    procedure Undo;
    property CanUndo: Boolean read GetCanUndo;
    property CaretPos: TPoint read GetCaretPos;
{$ENDIF}
    property RedoName: TUndoName read GetRedoName;
    property UndoName: TUndoName read GetUndoName;
    property DefaultConverter: TConversionClass read FDefaultConverter
      write FDefaultConverter;
    property DefAttributes: TRxTextAttributes read FDefAttributes write SetDefAttributes;
    property SelAttributes: TRxTextAttributes read FSelAttributes write SetSelAttributes;
    property WordAttributes: TRxTextAttributes read FWordAttributes write SetWordAttributes;
    property PageRect: TRect read FPageRect write FPageRect;
    property Paragraph: TRxParaAttributes read FParagraph;
    property SelectionType: TRichSelectionType read GetSelectionType;
  end;

  TRxRichEdit = class(TRxCustomRichEdit)
  published
    property Align;
    property Alignment;
    property AutoURLDetect;
    property AutoVerbMenu;
    property AllowObjects;
{$IFDEF RX_D3}
    property AllowInPlace;
{$ENDIF}
{$IFDEF RX_D4}
    property Anchors;
    property BiDiMode;
    property BorderWidth;
    property DragKind;
{$ENDIF}
    property BorderStyle;
    property Color;
    property Ctl3D;
    property DragCursor;
    property DragMode;
    property Enabled;
    property Font;
    property HideSelection;
    property HideScrollBars;
    property Title;
{$IFNDEF VER90}
    property ImeMode;
    property ImeName;
{$ENDIF}
{$IFDEF RX_D4}
    property Constraints;
    property ParentBiDiMode;
{$ENDIF}
    property LangOptions;
    property Lines;
    property MaxLength;
    property ParentColor;
    property ParentCtl3D;
    property ParentFont;
    property ParentShowHint;
    property PlainText;
    property PopupMenu;
    property ReadOnly;
    property ScrollBars;
    property SelectionBar;
    property ShowHint;
    property StreamFormat;
    property StreamMode;
    property TabOrder;
    property TabStop;
    property UndoLimit;
    property Visible;
    property WantTabs;
    property WantReturns;
    property WordSelection;
    property WordWrap;
    property OnChange;
    property OnDblClick;
    property OnDragDrop;
    property OnDragOver;
{$IFDEF RX_D5}
    property OnContextPopup;
{$ENDIF}
{$IFDEF RX_D4}
    property OnEndDock;
    property OnStartDock;
{$ENDIF}
    property OnEndDrag;
    property OnEnter;
    property OnExit;
    property OnKeyDown;
    property OnKeyPress;
    property OnKeyUp;
    property OnMouseDown;
    property OnMouseMove;
    property OnMouseUp;
{$IFDEF RX_D4}
    property OnMouseWheel;
    property OnMouseWheelDown;
    property OnMouseWheelUp;
{$ENDIF}
    property OnProtectChange; { obsolete }
    property OnProtectChangeEx;
    property OnResizeRequest;
    property OnSaveClipboard;
    property OnSelectionChange;
    property OnStartDrag;
    property OnTextNotFound;
{$IFDEF RX_D3}
    property OnCloseFindDialog;
{$ENDIF}
    property OnURLClick;
  end;

var
  RichEditVersion: TRichEditVersion;

implementation

uses Printers, ComStrs, OleConst, OleDlg {$IFDEF RX_D3}, OleCtnrs {$ENDIF},
  MaxMin;

const
  RTFConversionFormat: TRichConversionFormat = (
    ConversionClass: TConversion;
    Extension: 'rtf';
    PlainText: False;
    Next: nil);
  TextConversionFormat: TRichConversionFormat = (
    ConversionClass: TConversion;
    Extension: 'txt';
    PlainText: True;
    Next: @RTFConversionFormat);

var
  ConversionFormatList: PRichConversionFormat = @TextConversionFormat;

const
  RichEdit10ModuleName = 'RICHED32.DLL';
  RichEdit20ModuleName = 'RICHED20.DLL';
{$IFNDEF RX_D3}
  RICHEDIT_CLASSA      = 'RichEdit20A';     { Richedit 2.0 Window Class }
  RICHEDIT_CLASSW      = 'RichEdit20W';     { Richedit 2.0 Unicode }
  RICHEDIT_CLASS10A    = 'RICHEDIT';        { Richedit 1.0 }
  RICHEDIT_CLASS       = RICHEDIT_CLASSA;
{$ENDIF}

{$IFNDEF RX_D3}

const
  EM_SETUNDOLIMIT                     = WM_USER + 82; 
  EM_REDO                             = WM_USER + 84; 
  EM_CANREDO                          = WM_USER + 85;
  EM_GETUNDONAME                      = WM_USER + 86; 
  EM_GETREDONAME                      = WM_USER + 87; 
  EM_STOPGROUPTYPING                  = WM_USER + 88; 
  EM_SETTEXTMODE                      = WM_USER + 89; 
  EM_GETTEXTMODE                      = WM_USER + 90; 

{ for use with EM_GET/SETTEXTMODE }

  TM_PLAINTEXT                       = 1; 
  TM_RICHTEXT                        = 2;     { default behavior }
  TM_SINGLELEVELUNDO                 = 4;
  TM_MULTILEVELUNDO                  = 8;     { default behavior }
  TM_SINGLECODEPAGE                  = 16; 
  TM_MULTICODEPAGE                   = 32;    { default behavior }

  EM_AUTOURLDETECT                    = WM_USER + 91; 
  EM_GETAUTOURLDETECT                 = WM_USER + 92;
  EM_SETPALETTE                       = WM_USER + 93;
  EM_GETTEXTEX                        = WM_USER + 94; 
  EM_GETTEXTLENGTHEX                  = WM_USER + 95; 

  EM_SETLANGOPTIONS                   = WM_USER + 120;
  EM_GETLANGOPTIONS                   = WM_USER + 121;
  EM_GETIMECOMPMODE                   = WM_USER + 122;

{ Options for EM_SETLANGOPTIONS and EM_GETLANGOPTIONS }

  IMF_AUTOKEYBOARD            = $0001;
  IMF_AUTOFONT                = $0002;
  IMF_IMECANCELCOMPLETE       = $0004;  { high completes the comp string when aborting, low cancels. }
  IMF_IMEALWAYSSENDNOTIFY     = $0008;

{ New notifications }

  EN_OLEOPFAILED                      = $0709;
  EN_OBJECTPOSITIONS                  = $070A;
  EN_LINK                             = $070B;
  EN_DRAGDROPDONE                     = $070C;

{ Event notification masks }

  ENM_SCROLLEVENTS                    = $00000008;
  ENM_DRAGDROPDONE                    = $00000010;
  ENM_LANGCHANGE                      = $01000000; 
  ENM_OBJECTPOSITIONS                 = $02000000; 
  ENM_LINK                            = $04000000;

{ New edit control styles }

  ES_NOOLEDRAGDROP                    = $00000008; 

const
  CFM_LINK = $00000020;  { Exchange hyperlink extension }

  CFM_EFFECTS = CFM_BOLD or CFM_ITALIC or CFM_UNDERLINE or CFM_COLOR or
    CFM_STRIKEOUT or CFE_PROTECTED or CFM_LINK;
  CFM_ALL = CFM_EFFECTS or CFM_SIZE or CFM_FACE or CFM_OFFSET or CFM_CHARSET;
  PFM_ALL = PFM_STARTINDENT or PFM_RIGHTINDENT or PFM_OFFSET or
    PFM_ALIGNMENT or PFM_TABSTOPS or PFM_NUMBERING or PFM_OFFSETINDENT;

{ New masks and effects -- a parenthesized asterisk indicates that
   the data is stored by RichEdit2.0, but not displayed }

  CFM_SMALLCAPS               = $0040;                  { (*)    }
  CFM_ALLCAPS                 = $0080;                  { (*)    }
  CFM_HIDDEN                  = $0100;                  { (*)    }
  CFM_OUTLINE                 = $0200;                  { (*)    }
  CFM_SHADOW                  = $0400;                  { (*)    }
  CFM_EMBOSS                  = $0800;                  { (*)    }
  CFM_IMPRINT                 = $1000;                  { (*)    }
  CFM_DISABLED                = $2000;
  CFM_REVISED                 = $4000;

  CFM_BACKCOLOR               = $04000000; 
  CFM_LCID                    = $02000000; 
  CFM_UNDERLINETYPE           = $00800000;              { (*)    }
  CFM_WEIGHT                  = $00400000;
  CFM_SPACING                 = $00200000;              { (*)    }
  CFM_KERNING                 = $00100000;              { (*)    }
  CFM_STYLE                   = $00080000;              { (*)    }
  CFM_ANIMATION               = $00040000;              { (*)    }
  CFM_REVAUTHOR               = $00008000; 

  CFE_LINK                    = $00000020;
  CFE_AUTOCOLOR               = $40000000;   { NOTE: this corresponds to CFM_COLOR, }
                                             { which controls it }
  CFE_SUBSCRIPT               = $00010000;   { Superscript and subscript are }
  CFE_SUPERSCRIPT             = $00020000;   { mutually exclusive            }

  CFM_SUBSCRIPT               = CFE_SUBSCRIPT or CFE_SUPERSCRIPT;
  CFM_SUPERSCRIPT             = CFM_SUBSCRIPT;

  CFM_EFFECTS2 = CFM_EFFECTS or CFM_DISABLED or CFM_SMALLCAPS or CFM_ALLCAPS or 
    CFM_HIDDEN  or CFM_OUTLINE or CFM_SHADOW or CFM_EMBOSS or 
    CFM_IMPRINT or CFM_DISABLED or CFM_REVISED or 
    CFM_SUBSCRIPT or CFM_SUPERSCRIPT or CFM_BACKCOLOR;

  CFM_ALL2 = CFM_ALL or CFM_EFFECTS2 or CFM_BACKCOLOR or CFM_LCID or 
    CFM_UNDERLINETYPE or CFM_WEIGHT or CFM_REVAUTHOR or 
    CFM_SPACING or CFM_KERNING or CFM_STYLE or CFM_ANIMATION;

  CFE_SMALLCAPS               = CFM_SMALLCAPS; 
  CFE_ALLCAPS                 = CFM_ALLCAPS; 
  CFE_HIDDEN                  = CFM_HIDDEN; 
  CFE_OUTLINE                 = CFM_OUTLINE;
  CFE_SHADOW                  = CFM_SHADOW; 
  CFE_EMBOSS                  = CFM_EMBOSS;
  CFE_IMPRINT                 = CFM_IMPRINT;
  CFE_DISABLED                = CFM_DISABLED;
  CFE_REVISED                 = CFM_REVISED;

  CFE_AUTOBACKCOLOR           = CFM_BACKCOLOR; 

{ Underline types }

  CFU_CF1UNDERLINE            = $FF;    { map charformat's bit underline to CF2. }
  CFU_INVERT                  = $FE;    { For IME composition fake a selection.  }
  CFU_UNDERLINEDOTTED         = $4;     { (*) displayed as ordinary underline    }
  CFU_UNDERLINEDOUBLE         = $3;     { (*) displayed as ordinary underline    }
  CFU_UNDERLINEWORD           = $2;     { (*) displayed as ordinary underline    }
  CFU_UNDERLINE               = $1; 
  CFU_UNDERLINENONE           = 0; 

{ PARAFORMAT 2.0 masks and effects }

const
  PFM_SPACEBEFORE                     = $00000040;
  PFM_SPACEAFTER                      = $00000080;
  PFM_LINESPACING                     = $00000100; 
  PFM_STYLE                           = $00000400;
  PFM_BORDER                          = $00000800;      { (*)    }
  PFM_SHADING                         = $00001000;      { (*)    }
  PFM_NUMBERINGSTYLE                  = $00002000;      { (*)    }
  PFM_NUMBERINGTAB                    = $00004000;      { (*)    }
  PFM_NUMBERINGSTART                  = $00008000;      { (*)    }

  PFM_RTLPARA                         = $00010000; 
  PFM_KEEP                            = $00020000;      { (*)    }
  PFM_KEEPNEXT                        = $00040000;      { (*)    }
  PFM_PAGEBREAKBEFORE                 = $00080000;      { (*)    }
  PFM_NOLINENUMBER                    = $00100000;      { (*)    }
  PFM_NOWIDOWCONTROL                  = $00200000;      { (*)    }
  PFM_DONOTHYPHEN                     = $00400000;      { (*)    }
  PFM_SIDEBYSIDE                      = $00800000;      { (*)    }

  PFM_TABLE                           = $C0000000;      { (*)    }

{ Note: PARAFORMAT has no effects }

  PFM_EFFECTS = PFM_RTLPARA or PFM_KEEP or PFM_KEEPNEXT or PFM_TABLE or
    PFM_PAGEBREAKBEFORE or PFM_NOLINENUMBER or 
    PFM_NOWIDOWCONTROL or PFM_DONOTHYPHEN or PFM_SIDEBYSIDE or PFM_TABLE; 

  PFM_ALL2 = PFM_ALL or PFM_EFFECTS or PFM_SPACEBEFORE or PFM_SPACEAFTER or 
    PFM_LINESPACING or PFM_STYLE or PFM_SHADING or PFM_BORDER or 
    PFM_NUMBERINGTAB or PFM_NUMBERINGSTART or PFM_NUMBERINGSTYLE;

  PFE_RTLPARA                         = PFM_RTLPARA              shr 16; 
  PFE_KEEP                            = PFM_KEEP                 shr 16;    { (*)    }
  PFE_KEEPNEXT                        = PFM_KEEPNEXT             shr 16;    { (*)    }
  PFE_PAGEBREAKBEFORE                 = PFM_PAGEBREAKBEFORE      shr 16;    { (*)    }
  PFE_NOLINENUMBER                    = PFM_NOLINENUMBER         shr 16;    { (*)    }
  PFE_NOWIDOWCONTROL                  = PFM_NOWIDOWCONTROL       shr 16;    { (*)    }
  PFE_DONOTHYPHEN                     = PFM_DONOTHYPHEN          shr 16;    { (*)    }
  PFE_SIDEBYSIDE                      = PFM_SIDEBYSIDE           shr 16;    { (*)    }

  PFE_TABLEROW                        = $C000;          { These 3 options are mutually   }
  PFE_TABLECELLEND                    = $8000;          {  exclusive and each imply      }
  PFE_TABLECELL                       = $4000;          {  that para is part of a table  }

  PFA_JUSTIFY                         = 4;      { New paragraph-alignment option 2.0 (*) }