3D FPS

1234567890

C++博客 :: 首頁 :: 聯系 :: 聚合

:: 管理

57 Posts :: 2 Stories :: 57 Comments :: 0 Trackbacks

常用鏈接

留言簿(10)

我參與的團隊

隨筆分類

隨筆檔案

文章分類

emacs

文章檔案

2008年3月 (2)

搜索

閱讀排行榜

評論排行榜

com安全數組類型

創建復制數據給它例如這樣:

// set up safearray - SAFEARRAY is defined OAIDL.H
2

SAFEARRAY *psa;
3

// create a safe array to store the stream data
5

psa = SafeArrayCreateVector( VT_UI1, 0, llen );
6

// pointers to byte arrays
8

unsigned char *pData = NULL;
9

// get a pointer to the safe array. Locks the array.
11

SafeArrayAccessData( psa, (void**)&pData );
12

// copy the memory file into the safearray
14

memcpy( pData, pMemData, llen );
15

// clean up buffer
17

delete pMemData;
18

// unlock access to safearray
20

SafeArrayUnaccessData(psa);
21

// return a pointer to a SAFEARRAY allocated here
23

return psa;
24

接收復制數據給別人例如這樣:

long lLength; // number of bytes
2

char *pBuffer; // buffer pointer
3

// lock access to array data
5

SafeArrayAccessData( psa, (void**)&pBuffer );
6

// get number of elements in array. This is the number of bytes
8

lLength = psa->rgsabound->cElements;
9

// attach the buffer to the memory file
11

memfile.Attach((unsigned char*)pBuffer, lLength);
12

// start at beginning of buffer
14

memfile.SeekToBegin();
15

// create an archive with the attached memory file
17

CArchive ar(&memfile, CArchive::load | CArchive::bNoFlushOnDelete);
18

// document pointer is not used
20

ar.m_pDocument = NULL;
21

// inflate the object and get the pointer
23

rpObj = ar.ReadObject(0);
24

// close the archive
26

ar.Close();
27

// Note: pBuffer is freed when the SAFEARRAY is destroyed
29

// Detach the buffer and close the file
30

pBuffer = (char*) memfile.Detach();
31

// release the safearray buffer
34

SafeArrayUnaccessData( psa );
35

posted on 2011-12-25 18:43 DK_jims 閱讀(371) 評論(0) 編輯收藏引用所屬分類: C++

只有注冊用戶登錄后才能發表評論。


相關文章: 小小小小開源正則表達式測試工具 com安全數組類型微軟 CRT 函數表！C++ 文本讀寫！ stl::sort

網站導航: 博客園 IT新聞 BlogJava 博問 Chat2DB 管理

青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品