Question

我正在使用OLE Search Replace将“占位符标记”替换为存储在db字段中的内容到Word docuemnt中。我使用类似于讨论here的技术。

这是有效的，但当然不适用于rtf字段。我有包含rtf数据的数据库字段，如果做搜索替换我将获得完整的rtf代码，所以不要看

Hello World

我看到类似

的内容

{\ RTF1 \ ANSI \ ansicpg1252 \ deff0 \ deflang1040 \ viewkind4 \ uc1 \ pard \ sa200 \ sl276 \ slmult1 \ lang16 \ b \ f0 \ fs22你好\ i 世界\ b0 \ i0 \ par}

有没有人已经解决了这个问题？在StackOverflow上搜索我找到了a trick that uses the clipboard。注意：我不使用书签，这个例子使用书签，我只是将我的标签定义为纯文本，如''当我在搜索和替换循环中找到'时，我替换文本。

更新：你看到这个剪贴板技巧有任何问题吗？

您有其他想法并可以提出其他解决方案吗？

Answer 1

我建议改用Selection.InsertFile。这是一个示例，你应该做你想要的，它找到“占位符”并插入一个rtf文件。在...之前将rtf保存到临时文件中

 procedure TForm1.Button1Click(Sender: TObject);
var
  Fword,FDocument,FFindObject:OleVariant;
  Filename:String;

begin
   Filename := 'C:\temp\test.doc';
   Fword := CreateOleObject('Word.Application');
   FDocument := Fword.Documents.Add(Filename);
   FFindObject := FDocument.ActiveWindow.Selection.Find;
   Fword.visible := true;
   FFindObject.ClearFormatting;
   FFindObject.Replacement.ClearFormatting;
   FFindObject.Text := 'placeholder';
   FFindObject.Forward := True;
   FFindObject.Replacement.Text := '';
   FFindObject.Wrap := 1;
   FFindObject.MatchCase := False;
   FFindObject.MatchWholeWord := False;
   FFindObject.MatchWildcards := False;
   FFindObject.MatchSoundsLike := False;
   FFindObject.MatchAllWordForms := False;

   if FFindObject.Execute() then Fword.selection.InsertFile('C:\temp\test.rtf')   
end;

Answer 2

这是我多年前保存的帖子。它由TeamB的Peter Below博士发布到旧的Borland Delphi新闻组，但它今天仍然适用。它显示了如何使用EM_STREAMIN和EM_STREAMOUT消息及相关回调将RTF文本放入TRichEdit并从中复制出来。

Uses RichEdit;

Type
  TEditStreamCallBack = function (dwCookie: Longint; pbBuff: PByte;
    cb: Longint; var pcb: Longint): DWORD; stdcall;

  TEditStream = record
    dwCookie: Longint;
    dwError: Longint;
    pfnCallback: TEditStreamCallBack;
  end;

function EditStreamInCallback(dwCookie: Longint; pbBuff: PByte;
 cb: Longint; var pcb: Longint): DWORD; Stdcall;
var
  theStream: TStream;
  dataAvail: LongInt;
begin
  theStream := TStream(dwCookie);
  with theStream do begin
    dataAvail := Size - Position;
    Result := 0; {assume everything is ok}
    if dataAvail <= cb then begin 
      pcb := Read(pbBuff^, dataAvail); 
      if pcb <> dataAvail then  //couldn't read req. amount of bytes
        result := E_FAIL; 
    end 
    else begin
      pcb := Read(pbBuff^, cb); 
      if pcb <> cb then 
        result := E_FAIL; 
    end;
  end;
end;


Function EditStreamOutCallback(dwCookie: Longint; pbBuff: PByte;
    cb: Longint; var pcb: Longint): DWORD; stdcall;
 var
   theStream: TStream;
 begin
   theStream := TStream(dwCookie);

   with theStream do begin
     If cb > 0 Then 
       pcb := Write(pbBuff^, cb);
     Result := 0;
   end;
 end;

Procedure GetRTFSelection( aRichEdit: TRichEdit; intoStream: TStream );
Var
  editstream: TEditStream;
Begin
  With editstream Do Begin
    dwCookie:= Longint(intoStream);
    dwError:= 0;
    pfnCallback:= EditStreamOutCallBack;
  end;
  aRichedit.Perform( EM_STREAMOUT, SF_RTF or SFF_SELECTION, longint(@editstream));
End;

Procedure PutRTFSelection( aRichEdit: TRichEdit; sourceStream: TStream );
Var
  editstream: TEditStream;
Begin
  With editstream Do Begin
    dwCookie:= Longint(sourceStream);
    dwError:= 0;
    pfnCallback:= EditStreamInCallBack;
  end;
  aRichedit.Perform( EM_STREAMIN, SF_RTF or SFF_SELECTION, longint(@editstream));
End;

在单词文档中插入rtf文本

2 个答案: