不用第三方控件，让richEdit支持图片与表格换行

不用第三方控件，让richEdit支持图片与表格换行 DELPHI 6 提供的RICHEDIT是1.0，并不支持图片，对复杂表格也会乱成一团，如何在DELPHI原有控件的基础上做少量修改，使之支持显示图片与正确显示表格，其实只需要几行就好了，方法如下： 找到richEdit控件所在单元ComCtrls.pas (在SOURCE\VCL) //第一步 procedure TCustomRichEdit.CreateParams(var Params: TCreateParams); const // RichEditModuleName = 'RICHED32.DLL';//原来语句 // RichEditClassName = 'RICHEDIT'; //原来语句 RichEditModuleName = 'Msftedit.dll'; //改后语句 RichEditClassName = 'RichEdit50W'; //改后语句 //第二步 procedure TCustomRichEdit.CreateWnd; .... //加入一行要放在 CreateWnd 因为此时 HANDLE已建立 Perform(EM_SetOleCallback, 0, Longint(TRichEditOleCallback.Create(TRichEdit(self)) as IRichEditOleCallback)) ; //第三步 procedure TCustomRichEdit.WMRButtonUp(var Message: TWMRButtonUp); begin inherited; // RichEd20 does not pass the WM_RBUTTONUP message to defwndproc, // so we get no WM_CONTEXTMENU message. Simulate message here. // if Win32MajorVersion < 5 then //是原有1.0的要去掉 Perform(WM_CONTEXTMENU, Handle, LParam(PointToSmallPoint( ClientToScreen(SmallPointToPoint(Message.Pos))))); end; //第四步 procedure TRichEditStrings.Insert(Index: Integer; const S: string); .... //要去掉后面两名 // 1.0 uses, 2.0 will error happened 2011 // if RichEdit.SelStart <> (Selection.cpMax + Length(Str)) then //是原有1.0的要去掉 // raise EOutOfResources.Create(sRichEditInsertError); //是原有1.0的要去掉