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RichEdit中插入Bitmap/GIF动画以及获取这些元素的信息的方法

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发表于 2006-12-11 22:33:14 | 显示全部楼层 |阅读模式
  利用RichEdit制作表情控件是,首先需要向RichEdit中插入图片(Bitmap)或GIF动画,然后需要从RichEdit中获取Bitmap/GIF的信息,以便向远端传送。$ g" {% W+ H' I$ @* [$ V$ s; \
  本人对RichEdit了解很有限。下面是本人根据网上找到的资料,以通过看MSDN整理出来的实现在RichEdit中插入Bitmap与/GIF的方法,在这里共享给大家。RichEdit方面的高手不要取笑。% N$ O) J* |! G; b  i
  1.在RichEdit中插入Bitmap/GIF的方法7 ]1 I) Y* d9 o9 A' b( I
  下面的代码是从网上找来的,我稍微作了一点修改(代码中红色部分是我改过的)。
: g  X$ [: z1 [  ~" T' a6 WImageDataObect.h$ z  I: r1 L0 W/ c& U# u/ G
====================================================& c5 S7 Q# Y6 {; d7 d4 Q4 X0 I
#ifndef IMAGE_DATA_OBJECT__H5 z' ?6 Q1 i3 O) `7 b% s; Y
#define IMAGE_DATA_OBJECT__H
; c9 H+ c' Y! J9 k5 g9 `9 i#include <Richedit.h>7 D! p: \3 O. z4 j
#include <objidl.h.>9 Z+ l0 Q- U; c; o+ m/ l
#include <Richole.h>+ ^1 W, P3 N: `- K( M. g6 ~
class CImageDataObject : IDataObject
& l( K& ?2 J3 F# L, N{  Q# j* D  \7 l( P) Y8 d
public:
# T, [! A  M, j8 b( w& D6 D) [    // This static fumction accepts those parameters:+ ?. C' E+ X* V
    // IRichEditOle* : a pointer to IRochEditOle interface for the RichEdit Control
4 p& S: b0 y6 R0 c    // HBITMAP : the bitmap handle.
2 {' Z9 L: }. E6 y: o    //DWORD dwUser - 位图相关的信& l4 m; Q7 i$ W
    // After calling the function, it inserts the image in the current & e6 Y' u6 s4 W" G2 t3 j9 f& F
    //    position of the RichEdit
  E7 ]- t. _; b- L    //6 M) {: Q0 k1 Y& a6 @: F7 m% F
    static void InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap,DWORD dwUser);* Q; V6 e9 w& @' C2 F
    static void InsertGif(IRichEditOle *pRichEditOle,const char *gif_file,DWORD dwUser);
7 Z5 l9 q) j7 Q4 s' U- K* P( Q
private:
) J& W) B0 f" b* R    ULONG    m_ulRefCnt;# _+ |+ m8 g0 }3 C2 @
    BOOL    m_bRelease;0 w8 v/ J! e2 Q. E
    // The data being bassed to the richedit/ w" N4 F+ P' L0 X- e
    //- @5 C. C  l6 `! l6 J
    STGMEDIUM m_stgmed;
4 ?( T( c2 C/ w/ b" z6 a( m% g    FORMATETC m_fromat;
# b9 w" N; i5 e9 ^2 Qpublic:
* h- d9 [  W, s5 Z! Z0 @' U    CImageDataObject() : m_ulRefCnt(0)1 L1 k8 T& T5 C+ y2 z; F
    {
- }% J( ?3 @/ F0 A; Y- Y" B8 M        m_bRelease = FALSE;8 @4 E, \( @/ h' {7 L! P
    }
" q. ]" R2 V/ Y1 [    ~CImageDataObject()) X8 p# M2 q8 q" D. b
    {
: c; x  O1 ]/ k) K) Z/ I        if (m_bRelease)
# }6 R0 w4 a' g8 u6 y* N3 A            ::ReleaseStgMedium(&m_stgmed);
. T5 N) g* A7 h/ `( T. n8 K    }
9 j- Y# ?1 w' A9 q8 ]    // Methods of the IUnknown interface0 {* g$ r) |2 |; l
    //
9 [( p8 T5 F5 h" m    STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject)4 w! M, I6 `' x8 c( M% n, T
    {
7 o8 h- r% H" h% v! z  e        if (iid == IID_IUnknown || iid == IID_IDataObject)" v0 p6 W! n6 Y5 t5 N$ |
        {. x4 d; A' ~3 w" o' s7 H5 L& J9 C
            *ppvObject = this;
" y. O! w( K  W5 H7 v3 H% P            AddRef();* _# h' H2 _6 x3 [" y4 e9 e  R
            return S_OK;
1 @4 W2 f5 J6 ^' ?7 D2 X        }& G* p; {3 ~+ A8 b) ^) N5 t8 |
        else
9 y. n  r9 \# k& u9 I; L            return E_NOINTERFACE;) o" I* g/ o4 b0 k  \
    }% h4 N& U* s9 D% a& q, `- `
    STDMETHOD_(ULONG, AddRef)(void)- E9 S5 A6 F3 Q
    {( Y! a9 K9 k8 {0 T7 ?
        m_ulRefCnt++;$ i& Z# g5 {6 n& E3 `
        return m_ulRefCnt;, t% `5 ?5 A% y) x3 u9 H; ~
    }- I* l4 v! X  Y4 f
    STDMETHOD_(ULONG, Release)(void)
  e0 N' @# r/ ?- n( x  B6 \( ?    {$ {4 G8 h# o6 p( g8 X# V0 D7 p/ n
        if (--m_ulRefCnt == 0)6 u, M; B+ R. g. x: [, C0 }) k. {/ F
        {) w: T2 l1 j4 y6 k
            delete this;
/ x8 v$ M4 P2 c+ S        }
! s% f& P) l" i1 ~2 O/ }        return m_ulRefCnt;6 c7 I, h# {4 S7 P9 _
    }, m8 L" E- d1 p" p# z; V: _, x8 o
    // Methods of the IDataObject Interface/ Z/ h6 N  M, @
    //3 V6 |4 e4 h3 F' v- d
    STDMETHOD(GetData)(FORMATETC *pformatetcIn, STGMEDIUM *pmedium) {3 E5 p7 T3 k6 e3 x
        HANDLE hDst;& u) G% K/ h' `( @; p2 `  q) r" m
        hDst = ::OleDuplicateData(m_stgmed.hBitmap, CF_BITMAP, NULL);
: S) x5 }; x2 S- [7 M& w# D( y/ O        if (hDst == NULL)" R, \: P( [0 t* s; n2 F( y
        {3 h( @4 y! H& P. A( }* d7 Z
            return E_HANDLE;; h2 y7 e9 {  h$ b$ R0 v! s
        }
& L5 m2 ^. X9 Y6 P1 f+ f! k8 p5 O        pmedium->tymed = TYMED_GDI;
1 ^) ?% l* ]2 P8 ]+ [. O        pmedium->hBitmap = (HBITMAP)hDst;# C$ M1 v7 n/ ^; m: a: p
        pmedium->pUnkForRelease = NULL;
: I  p" q% m8 G% y( Z        return S_OK;
( X# m8 S1 X4 y' v6 U    }; e' a, u: z. s$ R, F5 N
    3 v# X5 \3 v3 `
    STDMETHOD(GetDataHere)(FORMATETC* pformatetc, STGMEDIUM*  pmedium ) 4 v% Y5 L1 Y2 _
    {8 A. y* P/ \6 y' n4 z% W1 B
        return E_NOTIMPL;
1 r5 l, q# n& x& G    }
$ c$ Z, z7 l# X- E    ) G- ?# l# v) C2 Z& h0 d
    STDMETHOD(QueryGetData)(FORMATETC*  pformatetc ) 9 L) g* B; u+ g! `0 U4 k
    {% H! J3 L) m/ E0 \, f
        return E_NOTIMPL;
7 K) u3 B. R5 l: G6 @    }
) n" v: x, K. R8 ^4 L   
$ u2 N/ {# t; S8 ~* I    STDMETHOD(GetCanonicalFormatEtc)(FORMATETC*  pformatectIn ,FORMATETC* pformatetcOut )     ; h% B& \# b! Y# m% B+ t
    {7 h" d3 D9 J$ E; f
        return E_NOTIMPL;
# U+ k5 C# R6 ]0 A6 j    }( O4 L$ U3 u/ r9 k/ {5 t- D4 f; |( ?# t
    , H  ^+ m/ C% T, I4 v% H9 e
    STDMETHOD(SetData)(FORMATETC* pformatetc , STGMEDIUM*  pmedium , BOOL  fRelease ) 8 E9 b4 @7 m* f" g
    {
: t7 ]: M, \6 L. |        m_fromat = *pformatetc;7 h3 b8 S0 h# A- d; h" f; t3 l
        m_stgmed = *pmedium;
' X5 ]: D; s2 N  ?        return S_OK;
$ O! l; Z5 ?6 A1 e; }    }0 S* _5 N1 R% P( j' R$ J) X
    & l4 }* L* P) O
    STDMETHOD(EnumFormatEtc)(DWORD  dwDirection , IEnumFORMATETC**  ppenumFormatEtc ) 8 W; _, H  x: K# |
    {* Q3 l/ o4 P! R2 H" a$ }
        return E_NOTIMPL;! T2 e1 p7 Y/ `5 M' S; {
    }5 K9 }( e0 t" o3 Z6 Q7 x
    : p& v5 N" m( {& U' L$ q9 p  V
    STDMETHOD(DAdvise)(FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink,
; g! N! C- e0 ?) e& h. P# W& l        DWORD *pdwConnection)
4 @0 ]/ k0 d% G1 D5 v: o    {4 D; }+ p+ A5 Y- R# W7 l& m
        return E_NOTIMPL;& p. Z" O8 ], _  J) h
    }2 g: E4 {7 \: t
   
# Y+ e; p+ E: N% R8 D1 p    STDMETHOD(DUnadvise)(DWORD dwConnection)
# ?! A: K9 y& ]; x0 J) E2 ~" E    {. K5 i! {! Z5 Y4 C  f
        return E_NOTIMPL;
* a  C8 i6 T+ E8 X5 ~: O5 ^# V    }
& w0 i: w* }. e4 |0 N+ m) |   
1 i6 V* o. k6 Y! [, J; R3 N$ b    STDMETHOD(EnumDAdvise)(IEnumSTATDATA **ppenumAdvise)
# W; c5 S& p1 m) ?    {
9 W9 q! y9 x- u: {* Q( R0 B% U3 ?        return E_NOTIMPL;1 o0 ]6 p* z% x
    }
1 y) ?6 ^3 E8 a9 c$ D9 f; Y    // Some Other helper functions
/ j# |9 M3 ^" y) s6 c. c1 t4 q    //
  ~( w* @% j& G9 ^    void SetBitmap(HBITMAP hBitmap);
: K" e. w( C  K3 C: ~% s; r    IOleObject *GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage);
, L* p4 r( }6 j" U$ A! y7 ~8 P; m};+ C" s7 D5 l- P
#endif // IMAGE_DATA_OBJECT__H* l" e4 j6 A0 [# X7 g9 H' |
===========================3 \3 _2 M, r8 O* C/ W
ImageDataObject.cpp/ q' w, V3 l% @
#include "stdafx.h"  //我很不喜欢这个头文件,这个程序只能在windows下运行,就留着吧
' V# R( r& I6 \1 J1 e1 d" v
#include "ImageDataObject.h"( F3 n& e1 x1 ^2 r$ o; U
#import "ImageOle.dll" raw_interfaces_only, raw_native_types, no_namespace, named_guids, auto_search" S5 `1 D3 Y3 Z8 s* l5 _) v
static CLSID const gif_clsid = { 0x6ADA938, 0xFB0, 0x4BC0, { 0xB1, 0x9B, 0xA, 0x38, 0xAB, 0x17, 0xF1, 0x82 } };

1 Z/ |9 O" x+ `/ k1 k7 v, V5 Rvoid CImageDataObject::InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap,DWORD dwUser)
' _# L: L9 J4 \0 d{1 `; ~) d9 {( M. c7 n* s( B' B
    SCODE sc;
2 D0 \( L! n' p, b6 x9 h: [7 W    // Get the image data object
8 m5 P3 o" F0 x7 W    //( Z  P& s  s9 @; B; _- C# z, Y( R
    CImageDataObject *pods = new CImageDataObject;$ J% J* e1 |8 \6 Z6 l) H
    LPDATAOBJECT lpDataObject;
* q4 o6 c  I1 ?: j( L. I    pods->QueryInterface(IID_IDataObject, (void **)&lpDataObject);' `5 v7 ~" ?2 }3 m1 A5 b
    pods->SetBitmap(hBitmap);
9 m! J  h; ~1 J" u    // Get the RichEdit container site/ b5 y) Y. K) @  ?* k5 i) \$ C$ M
    //" J! m1 P0 {0 x' H" i. f4 {* I" z
    IOleClientSite *pOleClientSite;   
& }* d" L2 C" [  f* ?; ^   
( c8 T9 j4 w! @. [4 [& p    pRichEditOle->GetClientSite(&pOleClientSite);- ~6 v; A4 U: E4 ?
    // Initialize a Storage Object) y. d2 ]- W% h
    //
& H; ?: E1 [8 D    IStorage *pStorage;    + e. m* N- V6 ]/ I$ G
    LPLOCKBYTES lpLockBytes = NULL;
+ G( a6 \" Y7 y; ~# O" ?+ x    sc = ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
2 k8 B6 j" h6 ?. A- J/ F, {    % ^' S. Q# l6 U# X
    sc = ::StgCreateDocfileOnILockBytes(lpLockBytes,
2 u$ k( b# w! S. J2 f5 R        STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE, 0, &pStorage);9 c( A% g" F" c/ X. K

/ ?1 `9 d9 D9 h: \( A- X. r1 `" }' v    // The final ole object which will be inserted in the richedit control4 S' F. q2 x5 K) o
    //
$ U1 t1 A+ h: [- C( [$ W    IOleObject *pOleObject;
' e6 v: W* k! X4 H8 e  a) B# L    pOleObject = pods->GetOleObject(pOleClientSite, pStorage);
9 O9 A$ I) h- r1 x    // all items are "contained" -- this makes our reference to this object; U' `/ Z( e. ^2 _5 N1 }
    //  weak -- which is needed for links to embedding silent update.- H& Z( {) `4 I. j+ d
    OleSetContainedObject(pOleObject, TRUE);
% ]7 \6 i8 k% M! v# e* j    // Now Add the object to the RichEdit , [  e+ v' ~; n7 Z% s
    //
9 o6 f% {2 X, z. {- ?/ K' w    REOBJECT reobject;
( v$ M( p' F" R) U: N; e* h5 W    ZeroMemory(&reobject, sizeof(REOBJECT));
) U- t5 w+ I7 c3 ^5 t* ^9 F0 p6 v+ f    reobject.cbStruct = sizeof(REOBJECT);/ a5 W1 ?  s$ m1 Z- t/ V1 O1 ]
   
' Y7 P. M: q6 d( ~. N- ]    CLSID clsid;! \. b7 ~; x7 r* m$ y: o
    sc = pOleObject->GetUserClassID(&clsid);1 Q: Y4 P' m% _) ~* v% F" q
' C2 y/ s- X, y9 J. i
    reobject.clsid = clsid;
( P) l3 O1 u: k% c( W    reobject.cp = REO_CP_SELECTION;
, E0 k  _+ }0 G3 t( |. f    reobject.dvaspect = DVASPECT_CONTENT;: ?* y0 Y. X# W  h5 m  v
    reobject.poleobj = pOleObject;
' p4 W8 a; X  }! _    reobject.polesite = pOleClientSite;, o, M/ u9 q7 U' Q" U) t
    reobject.pstg = pStorage;
/ h7 z- u$ i9 a+ o' j: p/ Dreobject.dwUser = dwUser;. @8 o6 X$ p; z! L: \7 C, J- G8 _
    // Insert the bitmap at the current location in the richedit control
8 z+ M9 F: ]! b% c$ q    //
* N6 r* Z5 y$ ^) `  @    pRichEditOle->InsertObject(&reobject);
1 ~. r+ T& ]9 ^" q    // Release all unnecessary interfaces
) i1 P- _0 [/ p$ j1 @    //
+ ]0 G* @; O' x% y    pOleObject->Release();1 l0 }; A! Q, B/ Z  `+ W
    pOleClientSite->Release();
7 o1 C- _3 t6 ]' B  X    pStorage->Release();/ A$ O4 L1 y" `: ^
    lpDataObject->Release();
, K: W+ A/ H$ c3 L6 X}2 {2 T2 [& o! i; Y
void CImageDataObject::InsertGif(IRichEditOle *lpRichEditOle,const char *gif_file,DWORD dwUser)
8 {  ^: m  Q# l6 p6 [) \4 [{. r5 t8 f7 r1 V  T$ H2 U/ n
LPOLEOBJECT  lpObject=NULL;
4 \: A. `! d8 F4 r% p: X  J+ [8 i* @LPSTORAGE       lpStorage=NULL;
# _6 P6 @; U  h1 ~1 [# nLPOLECLIENTSITE lpClientSite=NULL;
9 Q+ Q$ S: O* b; BLPLOCKBYTES  lpLockBytes = NULL;

* O, n8 y, w1 h6 U. SHRESULT hr=S_OK;
# n8 C; B9 N0 fCLSID clsid=CLSID_NULL;6 o( A* N. }9 w+ P4 ^6 k! c/ m7 A
do{7 `/ ^& b3 T* ~* y8 u- C
  hr= ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
: k; v1 c& \4 R  if (hr != S_OK || lpLockBytes==NULL)
2 W2 Q3 U  l: N8 Z2 V   break;

+ {' q+ }) w8 g* i5 Z' t: A% q$ O  hr= ::StgCreateDocfileOnILockBytes(lpLockBytes, STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE, 0, &lpStorage);
8 f6 ]3 p6 A' c/ f% O9 O, u+ W  if (hr!= S_OK||lpStorage==NULL)
% r4 Y& _' y. N5 t" {0 e1 U  H   break;

0 d$ M" u: v& C+ w1 {; `( R) x  hr=lpRichEditOle->GetClientSite(&lpClientSite);6 P2 y/ {4 q! B$ P- a
  if (hr!= S_OK||lpClientSite==NULL)
$ s: }; K. P9 R8 K   break;

2 Y8 ]/ g* i  ]* `# {4 Z. P! x  try+ S+ u* a7 J  G
  {& \$ n2 ?+ I" F
   HRESULT hr;
: A' P. p2 B$ }. L2 M, r6 V3 E   IGifAnimator *pGif  = NULL;
& x7 b8 R6 Q2 P. p# k& H& G   hr = CoCreateInstance(gif_clsid,NULL,CLSCTX_INPROC_SERVER , IID_IGifAnimator,(void **)&pGif);8 F. ^0 O4 b. K# ?- z7 z
   if(FAILED(hr) || pGif == NULL)
% R! O. V: C+ J9 x    break ;

) p4 _5 p# x/ [/ E   _bstr_t bstrPath(gif_file);+ m/ [8 s5 K8 @- q- t2 I& e
   pGif->LoadFromFile(bstrPath);& d8 H3 `/ w7 k9 H3 |1 c. R
   if(FAILED(hr))5 R' c8 I# Y4 X7 ^  A5 i
   {
! v$ G5 g0 u/ {+ U    pGif->Release();
/ u! S6 |- y# B/ p! W    break ;, |1 F- u$ _& n$ S
   }
+ l% x! t3 E! @; Y' }
   hr = pGif->QueryInterface(IID_IOleObject, (void**)&lpObject);
: m' }  e4 Y* N! ?" l   if( FAILED(hr)||lpObject==NULL) ) w/ b: x  s' n
   {% K( C( [& G) O: Y) g# A# c4 d
    pGif->Release();
+ Y5 t# n( t- H' |- {8 M    break ;
* p  e4 |8 C& E4 _   }2 D' k, r+ n9 H# f, d* w; g. J
   
+ P3 L- [! g4 t+ V9 P6 T   hr=OleSetContainedObject(lpObject, TRUE);
+ y1 O7 v1 D1 K. c3 \7 F+ m   if( FAILED(hr) )1 @* @2 d4 R6 V0 y
   {
  T7 B( g; O0 C    pGif->Release();7 _5 S2 f. [0 d" Y' V
    break ;
: n4 j6 h& j/ a0 w# r   }$ i8 B' o) H. \7 ?( v, w  J3 Z9 T' [
   hr=lpObject->GetUserClassID(&clsid);5 S: a5 U$ E+ V  [3 G' G
   if( FAILED(hr) )
6 T3 ]; L( d! I/ I' Q   {
  \. U5 E8 U, n/ l6 ^# U! G+ G/ ]    pGif->Release();+ \' S/ S4 k0 x. N
    break ;5 x* [3 ^. }& A1 z# F! D
   }
7 S# P" {1 s9 W8 c3 B/ d$ o8 `4 C  s
   REOBJECT reobject;
# G0 B9 u$ R; ]. Y0 v   ZeroMemory(&reobject, sizeof(REOBJECT));
4 x8 u9 ]* g; C% D; O; p" f   reobject.cbStruct = sizeof(REOBJECT); : t" a! B% w# g  u! }7 ~
   reobject.clsid = clsid;
/ z$ [" J' \" H   reobject.cp = REO_CP_SELECTION;& H  F1 Z+ A+ S  m* j  R
   reobject.dvaspect = DVASPECT_CONTENT;
6 M7 z7 X( z; E* ~2 S7 U   reobject.dwFlags = REO_BELOWBASELINE;9 \* I& w# s1 G7 A, N' c" e
   reobject.dwUser = dwUser;
/ ?, }& M' O) B$ o+ z3 R   reobject.poleobj = lpObject;
7 a$ s. M8 ]! c   reobject.polesite = lpClientSite;
6 D$ W: Q# b1 ~3 T: q   reobject.pstg = lpStorage;* R' p( F3 R9 y$ @
   SIZEL sizel={0,0};" [/ H, n- O& }5 X+ q
   reobject.sizel = sizel;
& K5 i6 }3 F1 Z5 D2 y! }1 O   hr=lpRichEditOle->InsertObject(&reobject);
/ _* u0 e8 ^) a5 _0 C& i  }; X7 Q. n7 H% T) e2 J
  catch( _com_error &e )% K  ^+ i% F( w, l1 F
  {  ?# [9 ~, v  X4 n3 J$ V
  }

4 v" N$ Y. r" u}while(FALSE);4 e& Z! p- k- D$ i) t9 ?6 Q
if(lpLockBytes) lpObject->Release();
2 V; v1 |# K) \0 A: r2 f: _if(lpLockBytes) lpLockBytes->Release();
7 ]* c9 g9 _  R- {! m) Vif(lpClientSite) lpClientSite->Release();+ ~2 \: o! t( [3 h" Q  m
if(lpRichEditOle) lpRichEditOle->Release();
" m5 a* `8 s1 y, l0 f}
8 H5 M1 a0 T5 `- N# ~

  ^  P( A7 T3 r- p//////////////////////////////////////////////////////////////////////
/ Q+ H' V  A: P// Construction/Destruction
: E0 r( [9 t2 y* N5 n) L/////////////////////////////////////////////////////////////////////// C7 @& S5 Q! g3 x
void CImageDataObject::SetBitmap(HBITMAP hBitmap)5 X1 |; q* _, H0 x9 Z/ r$ G
{
6 s! f# X6 _3 E3 p' ^5 Y6 O7 |4 V4 n' r9 D* Y# i* |
    STGMEDIUM stgm;: m+ o/ J% ]2 @7 z0 @% Q
    stgm.tymed = TYMED_GDI;                    // Storage medium = HBITMAP handle        % n# O0 Z) L; @' _1 a
    stgm.hBitmap = hBitmap;
4 N: \0 m4 o( \# t7 l+ P5 \    stgm.pUnkForRelease = NULL;                // Use ReleaseStgMedium* G8 J4 G' F( K2 A/ u7 [' j* a$ ], m. {
    FORMATETC fm;# ^# E; y2 ~% N' y: p
    fm.cfFormat = CF_BITMAP;                // Clipboard format = CF_BITMAP6 Q& K0 d3 h8 S8 q, J8 M
    fm.ptd = NULL;                            // Target Device = Screen- X: `) f6 t8 u- p0 O3 j& c& x9 t
    fm.dwAspect = DVASPECT_CONTENT;            // Level of detail = Full content
* `) {% K8 x9 p) Z8 L% |    fm.lindex = -1;                            // Index = Not applicaple+ o) R- g* P3 t# p9 I
    fm.tymed = TYMED_GDI;                    // Storage medium = HBITMAP handle2 |0 q( ]- w" }2 `' k( W6 l) _
    this->SetData(&fm, &stgm, TRUE);        7 t: p. [* M% s5 T) p
}
1 e5 x0 y# t) f) rIOleObject *CImageDataObject::GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage)( i% @* M9 N, ]2 A0 c/ N  P
{% M" @8 n/ V" w- P% H
: G% W  a% f) R+ ?0 ?
    SCODE sc;
) r% t4 U* W: {% u2 J& G, d    IOleObject *pOleObject;
( c4 f9 o: V8 A) w. O7 [    sc = ::OleCreateStaticFromData(this, IID_IOleObject, OLERENDER_FORMAT,
* i3 _/ ^  v" h            &m_fromat, pOleClientSite, pStorage, (void **)&pOleObject);
0 |  B8 b6 R- z    return pOleObject;
/ Y% j2 M" @( X1 `8 m9 R' r: ?/ s9 F}0 |! P( `: g, A6 g9 J0 ^
/////////////8 z! `1 H! u' _) q1 F4 `! D" M8 z  q
  OK,下面是想RichEdit中插入bitmap的范例
$ M7 W. ^+ G" H3 _* ~2 R  CImageDataObject::InsertBitmap(m_sendRichEdit.GetOleInterface(),bmp.m_hBitmap,dwBitmapInfo); 2 ]9 i0 a6 }+ e; b; D
  上面是m_sendRichEdit是一个RichEdit控件(这段代码是从一个WTL项目中提取出来的)。3 x# e2 y4 E9 E+ S1 W% R$ X+ q
  注意:上面的dwBitmapInfo就是应用程序设置的与插入RichEdit中的Bitmap相关的信息。
6 M3 M  M, ~- U. D/ w# z  2. 从EditRich中提取位图信息
9 n7 s* ~& R8 b/ _     下面是范例代码,其中原来就不多说了,看代码吧。* w% r1 U* ^4 u- m
    //获取RichEdit中有几个bitmap,这里假设RichEdit中有位图文件! d9 e/ }1 g( `1 w! Y( u% S
    int c = m_sendRichEdit.GetOleInterface()->GetObjectCount();     ( [) D" b4 t4 b- @
   for(int i = 0 ; i < c ; i++) //遍历位图
. B; ~2 L+ b$ w! c/ a/ L/ z7 A7 T   {+ s+ }1 j" O% E8 \# s- k! a
       REOBJECT object;  //位图信息存在这里$ }. B( L1 Y3 Z% ~. e- ?
     memset(&object,0,sizeof(REOBJECT));
" W7 u( g1 ]) D  n& v9 f     object.cbStruct = sizeof(REOBJECT);5 ~  B: R# [& X
     m_sendRichEdit.GetOleInterface()->GetObject(i,&object,REO_GETOBJ_ALL_INTERFACES);
- O8 |- e0 ^& X     int pos = object.cp ; //位图的位置信息; r) ~0 s) ?' m1 r9 w
     DWORD dwUSer  =object.dwUSer ; //位图的信息,之前应用程序设置的,应有程序当然知道什么意思了* s2 ]% T4 |1 C) [6 z
  }$ Z# z! T4 j# |
/////////////////////////////////////////////////////
: p* U) w* b# Q9 W: X) p" y, i; e3 hOVER
! d! {! K, V$ A2 i+ s( M////////////////////////////////////////////////////) K( T6 ]- \! B
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