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CString strName; // 文件名 # p$ H7 F4 r' G$ K1 o
HDC hDC; // 绘图句柄 ' x1 M3 s9 b4 f
// 打开文件
; y6 X) M2 [0 W/ sHANDLE hFile;
% b# {. A# {: M/ d' j; [% Rif( ( hFile = ::CreateFile( strName ,true ) ), GENERIC_READ, FILE_SHARE_READ
! @5 O3 m: F8 W/ i) |$ ^, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_SEQUENTIAL_SCAN, NULL
, r( u# M* l, \) ) != INVALID_HANDLE_VALUE )
; j# Z/ ^6 t* ^! s3 m{ 6 Y) E$ _6 M( ?
// 创建文件流 # N B% C" p) Y" E1 \$ c
DWORD dwSize = DWORD( ::GetFileSize( hFile, NULL ) ); ; @+ f2 ?) p- ?4 w0 e2 k# M
ASSERT( dwSize != -1 );
5 P& u) H& [3 EHGLOBAL hMemory = ::GlobalAlloc( GMEM_MOVEABLE, dwSize ); + Y) d$ P* c+ s' q- g6 u* B
ASSERT( hMemory != NULL );
* Z5 I% I4 U8 cLPVOID pData = ::GlobalLock( hMemory );
' h6 o7 l. z' U, x4 q0 mASSERT( pData != NULL );
( T4 z4 Q5 M$ P; X, Z3 p0 F" R9 k3 W& nDWORD dwCount; 7 S/ M& t. a9 w! Z0 N* n$ s
::ReadFile( hFile, pData, dwSize, &dwCount, NULL ); ) Q# Y- N, B& o F8 V. l% ^$ H
::GlobalUnlock( hMemory ); 1 ~& `; ]4 z5 i$ S/ \
IStream * pStream = NULL;
" x0 u: U, A: }& c |::CreateStreamOnHGlobal( hMemory, TRUE, &pStream ); # g) K! N2 q) g1 V. z
ASSERT( pStream != NULL ); , L. d+ S q/ ~* C- X. J/ ~
// 从流中装入图片
/ s z# I$ u0 v9 V* A; A, \IPicture * pPicture = NULL; : W! {) X4 s$ T( I1 Y S/ ^0 j
if( SUCCEEDED( ::OleLoadPicture( pStream, dwSize, TRUE, IID_IPicture,( LPVO
+ Y$ {% r* B* JID* )&pPicture ) ) ) $ C( m" M& z1 @
{ ; x- |/ m f# h# i8 h) m8 E* E; }+ O
// 向DC中绘图 ! e: K% L3 B3 p% `- `) F
OLE_XSIZE_HIMETRIC hmWidth; * }! J b9 `1 M2 X/ w* f
OLE_YSIZE_HIMETRIC hmHeight; * v& I3 d3 X4 o1 J* j
pPicture->get_Width( &hmWidth );
$ {6 O [2 L& @% q7 gpPicture->get_Height( &hmHeight ); ! p# J% u1 W' k+ n( w
pPicture->Render( hDC, 0, 0, 300, 300, 0, hmHeight, hmWidth, -hmHeight, NU
: V+ Q+ F: p* ^; x+ L& fLL ); . p/ o. v5 `. ^: i9 ^. U. X- f) n6 ~7 C
pPicture->Release(); U+ ^9 Y7 x2 D8 H" v' n
} 5 M. w) ^" v {$ N0 x
// 释放流和文件
# \, e. ~! T9 i, H, n2 g: X- N upStream->Release(); 8 q. C- d' B* G3 t
::CloseHandle( hFile );
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