请求指点：如何将TImage中图片写入标准RichEdit控件中？

Question

我已经从网上找到将BMP文件写入RichEdit控件的方法（见下面程序源码）。
但我想将TImage中的Bitmap写入RichEdit控件，请问哪位大侠能够指点指点！万分感谢！！！
unit InsRich;
interface
uses
   Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 Dialogs,ActiveX,ComCtrls;
const
 REO_CP_SELECTION    = ULONG(-1);
 REO_BELOWBASELINE   = $00000002;
 REO_RESIZABLE       = $00000001;
 REO_STATIC          = $40000000;
 EM_GETOLEINTERFACE = WM_USER + 60;
 IID_IUnknown:   TGUID = (D1:$00000000;D2:$0000;D3:$0000;D4:($C0,$00,$00,$00,$00,$00,$00,$46));
 IID_IOleObject: TGUID = (D1:$00000112;D2:$0000;D3:$0000;D4:($C0,$00,$00,$00,$00,$00,$00,$46));
type
 _ReObject = record
   cbStruct: DWORD;           { Size of structure                }
   cp: ULONG;                 { Character position of Object     }
   clsid: TCLSID;             { Class ID of Object               }
   pOleObj: IOleObject;       { Ole Object interface             }
   pstg: IStorage;            { Associated storage interface     }
   pOleSite: IOleClientSite;  { Associated Client Site interface }
   sizel: TSize;              { Size of Object (may be 0,0)      }
   dvAspect: Longint;         { Display aspect to use            }
   dwFlags: DWORD;            { Object status flags              }
   dwUser: DWORD;             { Dword for user's use             }
 end;
 TReObject = _ReObject;
 TCharRange = record {Copy From RichEdit.pas}
   cpMin: Integer;
   cpMax: Integer;
 end;
 TFormatRange = record
   hdc: Integer;
   hdcTarget: Integer;
   rectRegion: TRect;
   rectPage: TRect;
   chrg: TCharRange;
 end;
 IRichEditOle = interface(System.IUnknown)
   ['{00020d00-0000-0000-c000-000000000046}']
   function GetClientSite(out ClientSite: IOleClientSite): HResult; stdcall;
   function GetObjectCount: HResult; stdcall;
   function GetLinkCount: HResult; stdcall;
   function GetObject(iob: Longint; out ReObject: TReObject; dwFlags: DWORD): HResult; stdcall;
   function InsertObject(var ReObject: TReObject): HResult; stdcall;
   function ConvertObject(iob: Longint; rclsidNew: TIID;lpstrUserTypeNew: LPCSTR): HResult; stdcall;
   function ActivateAs(rclsid: TIID; rclsidAs: TIID): HResult; stdcall;
   function SetHostNames(lpstrContainerApp: LPCSTR; lpstrContainerObj: LPCSTR): HResult; stdcall;
   function SetLinkAvailable(iob: Longint; fAvailable: BOOL): HResult; stdcall;
   function SetDvaspect(iob: Longint; dvaspect: DWORD): HResult; stdcall;
   function HandsOffStorage(iob: Longint): HResult; stdcall;
   function SaveCompleted(iob: Longint; const stg: IStorage): HResult; stdcall;
   function InPlaceDeactivate: HResult; stdcall;
   function ContextSensitiveHelp(fEnterMode: BOOL): HResult; stdcall;
   function GetClipboardData(var chrg: TCharRange; reco: DWORD; out dataObj: IDataObject): HResult; stdcall;
   function ImportDataObject(dataObj: IDataObject; cf: TClipFormat; hMetaPict: HGLOBAL): HResult; stdcall;
 end;
 function InsertBitmap(Editor: TRichEdit; BmpFile: String): Boolean;implementationfunction InsertBitmap(Editor: TRichEdit; BmpFile: String): Boolean;
var
 FRTF: IRichEditOle;
 FOle: IOleObject;
 FormatEtc: tagFormatETC;
 FStorage: ISTORAGE;
 FClientSite: IOleClientSite;
 FLockBytes: ILockBytes;
 ReObject: TReObject;
 xt: TGuid;
 FTemp: IUnknown;
begin
 Result:=false;  
 if not FileExists(BmpFile) then Exit;
 try
   SendMessage(Editor.Handle, em_GetOleInterFace, 0, LongInt(@FRTF));
   if not Assigned(FRTF) then Exit;
   if CreateILockBytesOnHGlobal(0,true,FLockBytes)<>S_OK then Exit;
   if StgCreateDocfileOnILockBytes(FLockBytes,STGM_SHARE_EXCLUSIVE or STGM_CREATE or STGM_READWRITE,0,FStorage)<>S_OK then Exit;
   FormatEtc.cfFormat:=0;
   FormatEtc.ptd:=nil;
   FormatEtc.dwAspect:=DVASPECT_CONTENT;
   FormatEtc.lindex:=-1;
   FormatEtc.tymed:=TYMED_NULL;
   FRTF.GetClientSite(FClientSite);
   //从文件中创建一个Ole对象
   if OleCreateFromFile(GUID_NULL,PWideChar(WideString(BmpFile)),IID_IUnknown,0,@FormatEtc,FClientSite,FStorage,FOle)<>S_OK then Exit;
   FTemp:=FOle;
   FTemp.QueryInterface(IID_IOleObject, FOle);
   OleSetContainedObject(FOle, true);
   ReObject.cbStruct:=SizeOf(TReObject);
   FOle.GetUserClassID(xt);
   ReObject.clsid:=xt;
   ReObject.cp:=ULong(REO_CP_SELECTION);
   ReObject.dvaspect:=DVASPECT_CONTENT;
   ReObject.dwFlags:=ULong(REO_STATIC) or ULong(REO_BELOWBASELINE);
   ReObject.dwUser:=0;
   ReObject.pOleObj:=FOle;
   ReObject.pOleSite:=FClientSite;
   ReObject.pstg:=FStorage;
   ReObject.sizel.cx:=0;
   ReObject.sizel.cy:=0;
   FRTF.InsertObject(ReObject);
 finally
   FRTF:=nil;
   FOle:=nil;
 end;
 Result:=true;
end;
end. 

Answer 1

這樣可以嗎.....unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls, RxRichEd;type
TForm1 = class(TForm)
Button1: TButton;
RxRichEdit1: TRxRichEdit;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation
uses
JPEG;{$R *.dfm}function ConvertBitmapToRTF(const Bitmap: TBitmap): string;
var
bi, bb: string;
bis, bbs: Cardinal;
achar: string[2];
Buffer: string;
I: Integer;
type
PWord = ^Word;
begin
GetDIBSizes(Bitmap.Handle, bis, bbs);
SetLength(bi, bis);
SetLength(bb, bbs);
GetDIB(Bitmap.Handle, Bitmap.Palette, PChar(bi)^, PChar(bb)^);
SetLength(Buffer, (Length(bb) + Length(bi)) * 2);
i := 1;
for bis := 1 to Length(bi) do
begin
achar := IntToHex(Integer(bi[bis]), 2);
PWord(@Buffer[i])^ := PWord(@achar[1])^;
inc(i, 2);
end;
for bbs := 1 to Length(bb) do
begin
achar := IntToHex(Integer(bb[bbs]), 2);
PWord(@Buffer[i])^ := PWord(@achar[1])^;
inc(i, 2);
end;
Result := '{\rtf1 {\pict\dibitmap ' + Buffer + ' }}';
end;procedure InsertBitmapIntoRxRichEdit(const Bitmap: TBitmap; const RxRichEdit:
TRxRichEdit); overload;
begin
RxRichEdit.SelText := ConvertBitmapToRTF(Bitmap);
RxRichEdit.SelLength := 0;
RxRichEdit.SelStart := RxRichEdit.SelStart + 1;
end;procedure InsertBitmapIntoRxRichEdit(const GraphicFileName: string; const
RxRichEdit: TRxRichEdit); overload;
var
Bitmap: TBitmap;Graphic: TPicture;
begin
Graphic := TPicture.Create;
try
Graphic.LoadFromFile(GraphicFileName);if Graphic.Graphic is TBitmap then
Bitmap := Graphic.Bitmap
else
begin
Bitmap := TBitmap.Create;
Bitmap.Assign(Graphic.Graphic);
end;InsertBitmapIntoRxRichEdit(Bitmap, RxRichEdit);
finally
if Bitmap <> Graphic.Bitmap then
FreeAndNil(Bitmap);FreeAndNil(Graphic);
end;
end;procedure TForm1.Button1Click(Sender: TObject);
begin
//InsertBitmapIntoRxRichEdit('C:\Temp\Untitled.bmp', RxRichEdit1);
InsertBitmapIntoRxRichEdit('C:\Temp\Untitled-8.jpg', RxRichEdit1);
RxRichEdit1.SetFocus;
end;
end.

Answer 2

谢谢您的答复！
但我不想用RxRichEdit，我说的是标准RichEdit。
再次恳请大侠指点！！！

Answer 3

为什么不用三方控件呢？最简单的就是 JVCL 中 richedit;
var
  Bmp: TBitmap;
begin
  Bmp := TBitmap.Create;
  Bmp.LoadFromFile('test.bmp');
  JvRichEdit1.InsertGraphic(Bmp,True);
  Bmp.Free;
end;

Answer 4

如果用第三方控件，我就不会发这帖了！
我想既然从图片文件中可以提取，那么从TImage中更应该可以提取！

Answer 5

额，如果这样，你必须得使用 OleCreateStaticFromData 函数，这样必将非常麻烦。

Answer 6

你可参考一下：
http://bbs.2ccc.com/topic.asp?topicid=238581

Answer 7

谢谢小帆！
你提供的：http://bbs.2ccc.com/topic.asp?topicid=238581给了我很大启发，问题已经解决了！
再次感谢你的帮助！