关于richedit的问题！急需帮助！

Question

我现在只是要更改comctrls.pas文件里TCustomRichedit里的内容而不是增加，也不是继承。然后做成新的richedit控件。所以我需要一个只包含和richedit控件有关的代码的comctrls.pas文件。我现在对df还不太了解，希望高手指点。我想知道那些是不需要的，要改些什么地方。如果有改好的文件请发一份给我也可以。如果要分可一加。
我的E-MAIL: [email protected]

Answer 1

是修改RICHEDITMODULENAME常量的由RICHED32.DLL改为RICHED20.DLL
然后就是CREATESUBCLASS过程。

Answer 2

你从TcstomRichEdit继承一个新类重载CreateParams(var Params: TCreateParams)方法和CreateSubClass(var Params:CreateParams; ControlClassName: PChar);方法这两个都是protected的阿

Answer 3

当我继承TcstomRichEdit后，要生成新的RICHEDIT组件时是否还有重新写Trichedit和Tricheditstring,能否给个完整的代码？谢谢！！

Answer 4

uses
  ComCtrls;
type
  TMyRichEdit = class(TCustomRichEdit)
  protected
    procedure CreateParams(var Params: TCreateParams);override;
    procedure CreateSubClass(var Params: TCreateParams;
      ControlClassName: PChar);
  published
    property Align;
    property Alignment;
    property Anchors;
    property BiDiMode;
    property BorderStyle;
    property BorderWidth;
    property Color;
    property Ctl3D;
    property DragCursor;
    property DragKind;
    property DragMode;
    property Enabled;
    property Font;
    property HideSelection;
    property HideScrollBars;
    property ImeMode;
    property ImeName;
    property Constraints;
    property Lines;
    property MaxLength;
    property ParentBiDiMode;
    property ParentColor;
    property ParentCtl3D;
    property ParentFont;
    property ParentShowHint;
    property PlainText;
    property PopupMenu;
    property ReadOnly;
    property ScrollBars;
    property ShowHint;
    property TabOrder;
    property TabStop default True;
    property Visible;
    property WantTabs;
    property WantReturns;
    property WordWrap;
    property OnChange;
    property OnContextPopup;
    property OnDragDrop;
    property OnDragOver;
    property OnEndDock;
    property OnEndDrag;
    property OnEnter;
    property OnExit;
    property OnKeyDown;
    property OnKeyPress;
    property OnKeyUp;
    property OnMouseDown;
    property OnMouseMove;
    property OnMouseUp;
    property OnMouseWheel;
    property OnMouseWheelDown;
    property OnMouseWheelUp;
    property OnProtectChange;
    property OnResizeRequest;
    property OnSaveClipboard;
    property OnSelectionChange;
    property OnStartDock;
    property OnStartDrag;
  end;implementation{ TMyRichEdit }procedure TMyRichEdit.CreateParams(var Params: TCreateParams);
begin
  inherited;end;procedure TMyRichEdit.CreateSubClass(var Params: TCreateParams;
  ControlClassName: PChar);
begin
  inherited;end;继承TCustomRichEdit，把TMyRichEdit当成TRichEdit一样用是否需要改TRichEditString取决于你是否需要修改TRichEditString如果需要的话，只需要生成一个新的TMyRichEditString类然后在TMyRichEdit里面重载Create方法，把TRichEditString.Create修改为TMyRichEditString.Create