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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。
. V0 J. t# k6 h+ \: r  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。
% d8 Y4 x, G" A+ @  1.在RichEdit中插入Bitmap/GIF的方法
) p$ O' A( D$ [6 O0 [& @" @* p  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)。
+ k9 j( w$ F. O7 k$ y! b; CImageDataObect.h; q* W/ D2 J* ^5 H
====================================================# o8 R+ \* R9 E* T' f2 [
#ifndef IMAGE_DATA_OBJECT__H) N$ I9 J1 O: |! g- L
#define IMAGE_DATA_OBJECT__H! T& r1 z3 ?- k- B% ~' ]/ E
#include <Richedit.h>' y4 O% m* D" z8 w
#include <objidl.h.>
) H/ J9 R  M& h. y#include <Richole.h>
% D+ J% r0 z' B0 o- N4 vclass CImageDataObject : IDataObject & P- S  I  C3 [/ D8 h
{# n4 ~0 G6 R; V$ @5 z4 x  |
public:
' ^/ B' L0 {( c5 L! C+ T* C& F, m    // This static fumction accepts those parameters:
9 B: I1 B+ Z' R: _    // IRichEditOle* : a pointer to IRochEditOle interface for the RichEdit Control
6 S/ B$ D2 }2 @6 L4 M: S9 ?3 M/ M    // HBITMAP : the bitmap handle.+ Z" ?; Y8 `5 K6 `& Q; Z
    //DWORD dwUser - 位图相关的信
) o( B% R2 j2 k9 p9 u6 i) w# b+ C0 L, I    // After calling the function, it inserts the image in the current
" n. \4 W& K9 C1 w/ c0 K& W    //    position of the RichEdit( S" }! l% l8 I1 J" B
    //, M5 q8 }- _, g6 ~. G1 {0 {3 t
    static void InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap,DWORD dwUser);
& }& w4 k2 w# H# r; |    static void InsertGif(IRichEditOle *pRichEditOle,const char *gif_file,DWORD dwUser);
+ b# v! P; ~( @/ o! E
private:- {3 ^2 t5 i/ z, S
    ULONG    m_ulRefCnt;$ [1 k; X( g0 E2 K0 i  q
    BOOL    m_bRelease;( X5 H) M8 j' z
    // The data being bassed to the richedit, m  Y0 I) K* ^
    //6 m" E: p* e7 G0 B, Z: k, p+ [% H3 B
    STGMEDIUM m_stgmed;1 G! c! p- J2 w8 r# K% B. }# o
    FORMATETC m_fromat;
: Z3 a# j" @! `  bpublic:
& x3 [% i0 H. i& h/ |    CImageDataObject() : m_ulRefCnt(0), ]) k1 F( F; v  j' R
    {% p1 b, S# G7 v
        m_bRelease = FALSE;
3 \& V. q7 |4 `; S    }$ R5 {  b! Z- U% G3 n: F
    ~CImageDataObject()
) e7 k2 l, N! [/ u' j. h9 b    {* _) s: x- v. N* @
        if (m_bRelease)
$ h2 A0 y6 [9 U: K, q! a            ::ReleaseStgMedium(&m_stgmed);
; u! U  a1 ^5 S8 Y    }
' ?9 G6 C1 m8 V: h$ {" Q. z8 t2 K    // Methods of the IUnknown interface3 y5 l! e  i% j; J: t
    //
' @9 S3 ]8 |8 K    STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject): X9 s8 f5 h8 F
    {
4 n8 ^6 {2 I4 J( R& A% p        if (iid == IID_IUnknown || iid == IID_IDataObject)5 W6 P7 n* C) j
        {
$ i5 f% J  i7 o8 i" A            *ppvObject = this;7 l! P6 V3 @3 w% j/ O0 E' Q
            AddRef();
/ g, g+ K6 U1 G2 p' t& i& I1 N: e0 X            return S_OK;, R  d; ]# X6 H4 |' s$ w
        }  k) U# @1 O7 u/ @6 `" F8 \# f
        else
+ \8 F! T. d2 X, z6 f) [: T            return E_NOINTERFACE;9 g/ F  g" s0 R  \- T1 h! ]
    }
) w- H. `3 I2 W4 P' c4 Y+ h1 z    STDMETHOD_(ULONG, AddRef)(void). Y7 }. p, G- j9 w& e! q2 _* O
    {
% A% c: Z# P9 V1 m        m_ulRefCnt++;
# V7 ~3 e) p% N  f        return m_ulRefCnt;
* B- L& A% t9 w) t3 v9 A    }
. h/ r  p+ T/ k1 E: |9 U    STDMETHOD_(ULONG, Release)(void)
3 H' i9 r4 b6 z  S5 C% Z/ `    {
9 W( G# i7 ]' l        if (--m_ulRefCnt == 0)
5 T4 s1 s) ~5 u$ G        {
) r$ p* u  t8 t" A            delete this;: \1 g( Y3 I) Y/ F
        }
) Z' }6 A8 ^5 g4 S% i        return m_ulRefCnt;
5 Z" _; D1 ?4 M; I5 Y: Q    }+ N: R7 v: M% ~
    // Methods of the IDataObject Interface
1 z( m* n# Z/ S* ~# G# C' u    //4 z( {" e0 t  s8 K: l( I
    STDMETHOD(GetData)(FORMATETC *pformatetcIn, STGMEDIUM *pmedium) {6 G/ H% j: b) H, p. ~5 a
        HANDLE hDst;* i7 D, u- [" S; B+ I+ O
        hDst = ::OleDuplicateData(m_stgmed.hBitmap, CF_BITMAP, NULL);0 r- j0 t% \5 H+ x% U" ^0 m
        if (hDst == NULL)0 l9 ]& f6 X$ r
        {$ r2 N. U7 r* E9 n+ u, Q* I) a
            return E_HANDLE;
2 N' B0 {6 s8 R( e: W2 p        }
2 j3 @/ p0 p; i/ c; g& u- K        pmedium->tymed = TYMED_GDI;3 T5 v1 F7 k* A0 R4 ~  e3 o
        pmedium->hBitmap = (HBITMAP)hDst;! p0 {5 C/ i7 [& y: g* K
        pmedium->pUnkForRelease = NULL;* U8 @0 L  w3 I% H! Q
        return S_OK;' d5 z) R  L5 |& T8 [
    }0 P. L! ^, A& d( j3 A/ n
   
' n* l9 V4 S! [/ N    STDMETHOD(GetDataHere)(FORMATETC* pformatetc, STGMEDIUM*  pmedium )
% L  ~; L$ W& u- q) O: H+ L( R    {
# @' o: t, h% K2 R: |        return E_NOTIMPL;( _4 H) @& l) D' f- [- m
    }! B; ~" W$ c. U6 t" H
   
9 {3 ^! q0 N# K' G    STDMETHOD(QueryGetData)(FORMATETC*  pformatetc ) 2 |) |1 V/ }4 x5 f6 i- w* H
    {+ p6 S; m* ^* g9 F- W/ v. [
        return E_NOTIMPL;4 {  Y' n# x- Q7 G
    }- H& o/ D, _; V. l; o* w  ?
   
5 r- b/ {9 \, x# [6 ~    STDMETHOD(GetCanonicalFormatEtc)(FORMATETC*  pformatectIn ,FORMATETC* pformatetcOut )     * x% R- M  \; G+ _8 W2 j* R+ I, ~
    {+ Z% J, B' l* S# \
        return E_NOTIMPL;. d$ j( u" H, o  U* Q5 o* T
    }
! H; ~) F3 L6 A    " c7 P* k- d9 k# v: N5 U) D
    STDMETHOD(SetData)(FORMATETC* pformatetc , STGMEDIUM*  pmedium , BOOL  fRelease )
- k5 t; j& {, |. _: H# F    {9 G, _, `  i+ P0 k
        m_fromat = *pformatetc;9 U" `/ w4 I5 O- l5 S4 U
        m_stgmed = *pmedium;. H" m: H! p" `
        return S_OK;
% S% o0 g  ~! d- a% `, V! A0 A    }
$ ?$ K; Q# G. b5 f   
( g- m8 L" s3 t/ L6 w+ D* L    STDMETHOD(EnumFormatEtc)(DWORD  dwDirection , IEnumFORMATETC**  ppenumFormatEtc ) 4 l- X; u+ \8 ?$ T1 M, D
    {" r' c' B6 f, P6 U) D3 D+ l
        return E_NOTIMPL;
% Z1 h3 K( w8 s- v5 k/ I    }1 x" ?  @9 Q7 Q& H7 W
   
" }1 ^, N$ q5 A' N    STDMETHOD(DAdvise)(FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink,
+ A$ X# ]) `; k1 v- X2 c        DWORD *pdwConnection)
9 L6 ^/ S9 n/ v    {
9 V! A+ }- R7 K' B. D        return E_NOTIMPL;" h% z4 p4 _( p! u# k
    }" ?6 x  M- K# L3 S& e
    8 ?& a6 J) O" s
    STDMETHOD(DUnadvise)(DWORD dwConnection)
/ H' w9 D( O9 c    {
% g5 Y5 ?+ n+ S6 V7 L& X2 Q        return E_NOTIMPL;
/ O3 y1 [3 K% h    }
( ?2 Z7 I( Q* H7 _; S( _    2 J: k% |6 {1 g' F5 ~
    STDMETHOD(EnumDAdvise)(IEnumSTATDATA **ppenumAdvise) 9 J, S+ n! F, z' p5 m  k
    {
( ?9 d7 ~+ Y- r  f        return E_NOTIMPL;$ z& x# e5 Y& Y  Y
    }
: j! ^! r' H  R; D9 I1 S    // Some Other helper functions- i; V+ y+ ~, r( F8 q! [1 a6 W% k
    //
! ~: L9 y6 M5 y    void SetBitmap(HBITMAP hBitmap);
2 P! W% z! S; j# c    IOleObject *GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage);
0 A8 k# g; r/ e+ ?4 Q8 _4 P};
0 p2 r: E% Q# s6 A#endif // IMAGE_DATA_OBJECT__H5 R5 {* B1 [7 v$ O/ b$ U
===========================" ?) s# W  j* r$ q' D$ u
ImageDataObject.cpp" B0 S+ [. Z0 M' g: n# s" ^) y5 J* g
#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
6 J7 j/ q2 @% o: d! c: y
#include "ImageDataObject.h"
; O" @& U9 v0 M; \#import "ImageOle.dll" raw_interfaces_only, raw_native_types, no_namespace, named_guids, auto_search
/ H$ A  d: S& N3 v+ qstatic CLSID const gif_clsid = { 0x6ADA938, 0xFB0, 0x4BC0, { 0xB1, 0x9B, 0xA, 0x38, 0xAB, 0x17, 0xF1, 0x82 } };

2 k, K  S& _0 N* @0 U4 {7 Q8 \8 fvoid CImageDataObject::InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap,DWORD dwUser)  q: V( m& A5 Y
{  I  J5 Z: a2 }; ]9 \& `( r- p
    SCODE sc;
9 [8 |9 }5 u+ k4 X    // Get the image data object9 T- ?( ]# I! k+ }: |: R4 z
    //
+ h2 [& l, |  r( }9 D( T9 J    CImageDataObject *pods = new CImageDataObject;9 j; o+ k2 W9 K7 b" L1 F
    LPDATAOBJECT lpDataObject;
, ?  G: N' f* y: u# V    pods->QueryInterface(IID_IDataObject, (void **)&lpDataObject);! e  l1 G& D/ g7 q! R
    pods->SetBitmap(hBitmap);
" j) k! q$ ?3 ^; U9 _5 O    // Get the RichEdit container site7 O* P4 ]; O, L# T3 X
    //+ J& Q" G- V7 \- L  h6 z2 r# P
    IOleClientSite *pOleClientSite;   
' G* x, _" m. I+ y3 ?7 I   
4 K2 `- u" E$ n# Z6 N    pRichEditOle->GetClientSite(&pOleClientSite);
( _/ V' w* f# H# q; L# u    // Initialize a Storage Object1 E% C2 ~- M2 u7 f8 ]( q: C9 `
    //9 y0 v. d7 r, P/ M# o
    IStorage *pStorage;   
+ E! a( _  V+ H( p8 m2 U/ R    LPLOCKBYTES lpLockBytes = NULL;8 g6 ]! {  X, r. P" Q# p$ T2 N2 H
    sc = ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);/ D, J. `, }6 F' B. K
    6 Z, @* C& K# ?& p' F; n
    sc = ::StgCreateDocfileOnILockBytes(lpLockBytes,7 ?2 f  m! m! p- w& Y7 K; X
        STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE, 0, &pStorage);& Q" ^. A+ j; B  Y0 T! Y1 \+ U

# u& |0 Z% x7 ?: I" {    // The final ole object which will be inserted in the richedit control
' K1 {. z! s- F& K    //7 J) q3 w9 |9 L# G; I, c
    IOleObject *pOleObject; * S/ n( l& _9 l) F% y: t; q! _
    pOleObject = pods->GetOleObject(pOleClientSite, pStorage);6 [: a7 i  x8 D3 K
    // all items are "contained" -- this makes our reference to this object+ @$ a$ H2 g/ Z+ p# U2 j
    //  weak -- which is needed for links to embedding silent update.- g1 ?5 m( H4 \4 O  z8 E& O
    OleSetContainedObject(pOleObject, TRUE);+ i) W2 D" n; }/ ]
    // Now Add the object to the RichEdit 5 C. Q: M1 F1 |& J1 s
    //8 L7 J1 {2 @0 {/ r7 t) V& G
    REOBJECT reobject;: Z+ B, {) S' F7 h# j# `- F7 C
    ZeroMemory(&reobject, sizeof(REOBJECT));* Z- F7 [- Q# ]; `% D& X, x8 f, h
    reobject.cbStruct = sizeof(REOBJECT);
  _  K4 d% ]; m. _- V   
) k) \4 i" r1 K    CLSID clsid;+ U. W& P# [! ~7 C2 W7 A5 @8 @
    sc = pOleObject->GetUserClassID(&clsid);/ u, C! S5 P+ x' R' z; P
7 {8 E& P1 m1 |
    reobject.clsid = clsid;" E0 |8 ~, Q2 t, [
    reobject.cp = REO_CP_SELECTION;3 A+ l/ h. v2 d5 R; Z* ~& k" \
    reobject.dvaspect = DVASPECT_CONTENT;: s4 r, p2 a3 v3 A
    reobject.poleobj = pOleObject;
: G* I8 `! f& ^# w8 ?8 ~& I    reobject.polesite = pOleClientSite;. J3 q& r2 l7 i: c+ S
    reobject.pstg = pStorage;" e  i6 B% R! Y& w) t( r! ^5 p, i6 @
reobject.dwUser = dwUser;
/ k$ O9 \# p4 \7 O+ u% p, h9 n    // Insert the bitmap at the current location in the richedit control
  x, F0 @% _6 X: d0 Y    //
$ M# U) C2 ^; w% c    pRichEditOle->InsertObject(&reobject);
% q; X. p$ q$ V5 e5 B    // Release all unnecessary interfaces
; [4 ^/ n/ C/ e2 C  [/ v' k    /// Q3 D* ~. L+ T8 e6 r
    pOleObject->Release();8 z' a9 c  w% U
    pOleClientSite->Release();8 f7 o8 I) l) x( e8 X0 k0 m
    pStorage->Release();
+ O9 p7 s0 ?1 Y    lpDataObject->Release();4 c. N( `& u1 b, r5 M
}7 d, z; R: A1 T7 R, x
void CImageDataObject::InsertGif(IRichEditOle *lpRichEditOle,const char *gif_file,DWORD dwUser)
2 @) d3 Q' G; p2 j{
/ O( \/ l- J2 z7 W% @0 VLPOLEOBJECT  lpObject=NULL;9 T: _  n+ e& S% Y# V; X9 F
LPSTORAGE       lpStorage=NULL;
, M/ n! i7 L% ~) h4 yLPOLECLIENTSITE lpClientSite=NULL;
1 e) B% d9 F! s) [LPLOCKBYTES  lpLockBytes = NULL;
5 z% ~& z6 P6 C4 v. A$ d0 t) J
HRESULT hr=S_OK;  k. X6 V" I0 s# z9 l: [
CLSID clsid=CLSID_NULL;* S! u) J  y3 |0 ^! g' D
do{) X- J2 `; v% d3 t9 S
  hr= ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);! g$ k. I1 Q# A4 T  G+ P& j
  if (hr != S_OK || lpLockBytes==NULL) : U: F- v% \7 n  q
   break;

# w3 T! C) z% ~  hr= ::StgCreateDocfileOnILockBytes(lpLockBytes, STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE, 0, &lpStorage);/ D* q# C0 I9 v1 Y! P$ _3 |9 g
  if (hr!= S_OK||lpStorage==NULL) ' n/ h; [( s9 i6 Q2 y7 `
   break;

  y+ ?4 s8 T# g# p  hr=lpRichEditOle->GetClientSite(&lpClientSite);; N: f& B, X8 I6 @9 y) r
  if (hr!= S_OK||lpClientSite==NULL) 8 ~$ U' D) O6 {# U9 S
   break;

9 [6 R* W6 |% V6 ?& R- G: \  try! m$ K% M4 k" Q
  {
& R6 s* u- P. B   HRESULT hr;6 s4 V+ [: s% ^3 B" z
   IGifAnimator *pGif  = NULL;/ n2 E# L: t9 B. y9 y8 P/ e
   hr = CoCreateInstance(gif_clsid,NULL,CLSCTX_INPROC_SERVER , IID_IGifAnimator,(void **)&pGif);5 Y, M4 T7 e# e  y" y8 z9 w
   if(FAILED(hr) || pGif == NULL)9 x1 y1 A. w2 k7 I3 R) [2 A
    break ;
" n  [0 A# v5 y; b. U; v: e; o5 r
   _bstr_t bstrPath(gif_file);6 A6 N0 }, b6 C* I: g
   pGif->LoadFromFile(bstrPath);
0 _1 g8 h$ q8 Z% u( S4 Y   if(FAILED(hr))1 q2 L. ]" A8 ?# ?" Y* U9 h; e
   {, Q- {  v- U- m% Q+ F* g" [
    pGif->Release();" Y0 M/ z! I1 i) d* d  P
    break ;) C7 b; w, R1 a
   }

( E: ?3 E1 C3 z% X   hr = pGif->QueryInterface(IID_IOleObject, (void**)&lpObject);
# f$ r2 A& ]+ S2 r% C/ @- [   if( FAILED(hr)||lpObject==NULL)
% T$ ^- p. |: i* N% c   {& Z& W3 I; {  u) n% u' B5 L
    pGif->Release();& B( F4 B/ L4 s+ C
    break ;3 z0 C% ^$ `! S) F9 `
   }
, b: q# O! M7 C; ?' c, i+ D   ' M% V! V0 I* T# d7 i1 T
   hr=OleSetContainedObject(lpObject, TRUE);, J9 f' y: l; r5 ~
   if( FAILED(hr) )/ I. _1 D! P# Q) g; f( D5 L
   {
4 w2 x/ f4 I/ e% z8 \9 l    pGif->Release();) }2 i' d  M+ U3 p' u: N
    break ;5 p/ C( Z( s/ T  n
   }
0 n! C1 h/ j5 l1 C& e9 F: I   hr=lpObject->GetUserClassID(&clsid);: B" q5 P' y5 n! j
   if( FAILED(hr) )$ l$ r& ?( n# Q6 D
   {% L) [' E' G8 N% z& T$ d/ J
    pGif->Release();. H6 ]- u6 |6 x+ Z! H0 p
    break ;
, o; e$ @0 ]( |5 I5 |7 @9 A   }

7 `8 ~% N4 a: A/ ~' h- ]* L' @   REOBJECT reobject;
# n9 D  q# M8 P; q* k; A0 v9 e   ZeroMemory(&reobject, sizeof(REOBJECT));9 y! N) R: X0 `; ~% F9 q
   reobject.cbStruct = sizeof(REOBJECT);
& i! e" T1 I1 m0 M" }: T6 z   reobject.clsid = clsid;
8 u+ o& S& o& Q' ?8 z( Q5 m   reobject.cp = REO_CP_SELECTION;
5 v# F. ^* s8 V  G" E6 s   reobject.dvaspect = DVASPECT_CONTENT;1 L# F+ K0 G- j
   reobject.dwFlags = REO_BELOWBASELINE;
+ e% L- C# \4 m   reobject.dwUser = dwUser;
' w8 s  G0 n6 t9 F   reobject.poleobj = lpObject;$ g4 O9 R: M3 b9 W3 `2 u. u
   reobject.polesite = lpClientSite;9 J5 l4 ?- U. z1 A2 e. M
   reobject.pstg = lpStorage;2 ?/ k- T0 d; Z7 K/ t
   SIZEL sizel={0,0};
* o0 H% O: @! c: f/ F  k7 Z; q   reobject.sizel = sizel;
) v, g+ Z% R5 e# x( o. z   hr=lpRichEditOle->InsertObject(&reobject);
8 n/ J: @$ S! ]8 Z( @9 L  }
' t7 }+ G% \8 w6 `( s" [7 b  catch( _com_error &e )
/ l$ J+ z$ t; V. k" G4 a  {, O) ~* L4 z& ^. K( m* h
  }
2 V; v2 |, T2 H. `) X
}while(FALSE);1 h: D# C3 z6 e" j/ |$ p
if(lpLockBytes) lpObject->Release(); 9 {2 \  T5 z7 p; K* c% Z9 _. ^8 V
if(lpLockBytes) lpLockBytes->Release();
1 _% d2 j5 i; \) H* qif(lpClientSite) lpClientSite->Release();# ^. M3 V. n! e3 Z
if(lpRichEditOle) lpRichEditOle->Release();) Y. ]- M+ P. Y" f
}% V# B& J/ ^# r* o4 x0 U

4 w" Q" j% q4 H. z0 D: L//////////////////////////////////////////////////////////////////////
1 y5 s' K: Y, E% N' S// Construction/Destruction! ]0 t$ A9 J, K$ n
//////////////////////////////////////////////////////////////////////
3 ]3 F4 s- R, q$ r, Wvoid CImageDataObject::SetBitmap(HBITMAP hBitmap)
& p( y0 b# t5 Q0 e# P" S; @; l{: \( F% u, s3 @1 T+ B

3 @+ D# C7 r7 y( S' t& ^    STGMEDIUM stgm;
7 n5 }8 D1 c) g4 n- @) R    stgm.tymed = TYMED_GDI;                    // Storage medium = HBITMAP handle        
6 R  A0 X3 P$ o& w! `. x+ q    stgm.hBitmap = hBitmap;
" b( o/ d" z  d" q5 f1 _3 i) X7 ^! X    stgm.pUnkForRelease = NULL;                // Use ReleaseStgMedium7 r& J3 R7 m: z& q2 B
    FORMATETC fm;6 i8 D4 i) w, ]5 E; c5 G9 m
    fm.cfFormat = CF_BITMAP;                // Clipboard format = CF_BITMAP! D1 M# L/ {7 ~7 o% M* W
    fm.ptd = NULL;                            // Target Device = Screen- e; C- r7 }- W; y* j
    fm.dwAspect = DVASPECT_CONTENT;            // Level of detail = Full content- g$ u7 n/ F3 f9 O
    fm.lindex = -1;                            // Index = Not applicaple) G0 T& l7 O+ J* E, H1 [
    fm.tymed = TYMED_GDI;                    // Storage medium = HBITMAP handle1 l4 O5 c- z+ x4 i  F6 s. g
    this->SetData(&fm, &stgm, TRUE);        % f* d! @/ c/ ^7 K) `
}
4 F" X6 \; _  cIOleObject *CImageDataObject::GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage)
# o% E# u1 X, n) J3 K+ X3 b{
4 ?  M5 f  |' K
2 Y1 j' q% o; `8 u1 J* d: @    SCODE sc;1 R& }/ n  b/ v  T+ M' |( e" b
    IOleObject *pOleObject;6 a( Z5 t5 g5 o, a2 D
    sc = ::OleCreateStaticFromData(this, IID_IOleObject, OLERENDER_FORMAT, % w. u  ~9 A; {) C/ ?2 B7 d
            &m_fromat, pOleClientSite, pStorage, (void **)&pOleObject);
7 v6 s  h  u9 z* W# k    return pOleObject;& p7 u) [: F2 H
}
6 S1 x0 W* ~+ e3 {; N! x- i/////////////: n" s7 Y7 ]+ \  q5 w+ u7 ]( f
  OK,下面是想RichEdit中插入bitmap的范例
% A7 e+ p( ^8 r  |9 X4 H  CImageDataObject::InsertBitmap(m_sendRichEdit.GetOleInterface(),bmp.m_hBitmap,dwBitmapInfo); ) a2 B( u. z' @) H' C2 e5 r6 w& u
  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)。
8 J; W4 p9 t, B! p6 c5 d  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。# B. q0 X& M5 B$ V! S* ~9 ]
  2. 从EditRich中提取位图信息: G/ Y" F4 x: R+ r+ p
     下面是范例代码,其中原来就不多说了,看代码吧。0 h3 U1 |: M0 {% k. L
    //获取RichEdit中有几个bitmap,这里假设RichEdit中有位图文件* b) k1 j2 b# a
    int c = m_sendRichEdit.GetOleInterface()->GetObjectCount();     
" ?9 s* u3 h* Z   for(int i = 0 ; i < c ; i++) //遍历位图
5 G/ D! O; Z/ p- O" c' q   {
: u, I, A- R$ `- T2 W       REOBJECT object;  //位图信息存在这里) ]1 i$ N3 O! ^$ {8 q% L$ k
     memset(&object,0,sizeof(REOBJECT));
+ W( t* h$ _! y5 V/ H6 G& q     object.cbStruct = sizeof(REOBJECT);
' }5 a( t7 J2 r- R- ]7 \5 L     m_sendRichEdit.GetOleInterface()->GetObject(i,&object,REO_GETOBJ_ALL_INTERFACES);
4 g; Z' k+ e- k/ T9 ]     int pos = object.cp ; //位图的位置信息
. O; y" b5 p1 Q1 t/ v) z. U- [     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
( i% M/ V' i2 V2 L6 D& X9 F  }
7 m* h# j8 w  M2 e. }7 c) P/////////////////////////////////////////////////////
! R" Q* r2 ~$ YOVER
' M5 a2 Q  |$ G) k+ n////////////////////////////////////////////////////# _' I" C' ?- F" l, H: A$ \8 R

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3 f# A& N% q5 g, x9 z; `6 wTrackback: http://tb.blog.csdn.net/TrackBack.aspx?PostId=391030
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