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  ±è¿µ´ë(2003-03-06 21:36:41, Hit : 5927, Vote : 1379
 µÎ°³ÀÇ RichEdit »çÀÌ¿¡ ³»¿ë º¹»çÇϱâ

// ¾Æ·¡ÀÇ ¼Ò½ºÀ» clCopyRTF.pas ÆÄÀÏ·Î ¸¸µé¾î¼­ unitÀ¸·Î »ç¿ëÇϼ¼¿ä

unit clCopyRTF;

{written by Mike Orriss (mjo@3kcc.co.uk)

This unit provides a simple method of copying RTF text
between two RichEdit controls (see CopyRTF procedure below).

Data copied will be the source selected text or the whole
source if there is none selected.

The copied data will replace the destination selected text
or be inserted at the current caret position
}

interface

uses Windows,Classes,ComCtrls,richedit;

procedure CopyRTF(source,dest: TRichEdit);

implementation

{$IFNDEF VER120}
type TEditStreamCallBack = function (dwCookie: Longint; pbBuff: PByte;
                                     cb: Longint; var pcb: Longint): Longint; stdcall;

  TEditStream = record
    dwCookie: Longint;
    dwError: Longint;
    pfnCallback: TEditStreamCallBack;
  end;
{$ENDIF}

//---------------------------------------------------------------------------//
function InCallback(dwCookie: Longint; pbBuff: PByte; cb: Longint; var pcb: Longint): Longint; stdcall;
var stream: TStream;
var bytes: LongInt;
begin
  stream := TStream(dwCookie);
  bytes := stream.Size-stream.Position;
  if bytes > cb then bytes := cb;
  pcb := stream.Read(pbBuff^,bytes);
  Result := 0;
end;

//---------------------------------------------------------------------------//
function OutCallback(dwCookie: Longint; pbBuff: PByte; cb: Longint; var pcb: Longint): Longint; stdcall;
begin
  if cb > 0 then pcb := TStream(dwCookie).Write(pbBuff^,cb);
  Result := 0;
end;

//---------------------------------------------------------------------------//
procedure GetRTF(re: TRichEdit; stream: TStream);
var editstream: TEditStream;
begin
  editstream.dwCookie:= Longint(stream);
  editstream.dwError:= 0;
  editstream.pfnCallback:= OutCallBack;
  re.Perform(EM_STREAMOUT,SF_RTF or SFF_SELECTION,longint(@editstream));
  stream.Position := 0;
end;

//---------------------------------------------------------------------------//
procedure PutRTF(re: TRichEdit; stream: TStream);
var editstream: TEditStream;
begin
  editstream.dwCookie:= Longint(stream);
  editstream.dwError:= 0;
  editstream.pfnCallback:= InCallBack;
  re.Perform(EM_STREAMIN,SF_RTF or SFF_SELECTION,longint(@editstream));
end;

//---------------------------------------------------------------------------//
procedure CopyRTF(source,dest: TRichEdit);
var mstream: TMemoryStream;
begin
  if source.GetTextLen=0 then exit;

  mstream := TMemoryStream.Create;
  try
    if source.SelLength=0 then begin
      source.SelStart := 0;
      source.SelLength := source.GetTextLen;
    end;
    GetRTF(source,mstream);
    PutRTF(dest,mstream);
  finally
    mstream.Free;
  end;
end;

end.





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