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Delphi COM编程介绍
软件重用是业界追求的目标,人们一直希望能够像搭积木一样随意“装配”应用程序,组件对象就充当了积木的角色。
所谓组件对象,实际上就是预定义好的、能完成一定功能的服务或接口。问题是,这些组件对象如何与应用程序、
如何与其他组件对象共存并相互通信和交互?这就需要制定?个规范,让这些组件对象按统一的标准方式工作。
COM是个二进制规范,它与源代码无关。这样,即使COM对象由不同的编程语言创建,运行在不同的进程空间和不同的
操作系统平台,这些对象也能相互通信。COM既是规范,也是实现,它以COM库(OLE32.dll和贴OLEAut32.dll)的形式提供了
访问COM对象核心功能的标准接口以及一组API函数,这些API函数用于创建和管理COM对象。COM本质上仍然是客户服务器
模式。客户(通常是应用程序)请求创建COM对象并通过COM对象的接口操纵COM对象。服务器根据客户的请求创建并管理COM
对象。客户和服务器这两种角色并不是绝对的。
- 2022-12-18 19:50:04下载
- 积分:1
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通信经典书籍: Digital Communication Receivers Synchronization, Channel Estimation, and...
通信经典书籍: Digital Communication Receivers Synchronization, Channel Estimation, and Signal Processing-Communication Classic Books: Digital Communication Receivers Synchronization, Channel Estimation, and Signal Processing
- 2022-04-18 01:09:56下载
- 积分:1
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DWR to develop training, a software company internal data, detailed and unique p...
DWR开发培训,某软件公司内部资料,有详细和独特的介绍-DWR to develop training, a software company internal data, detailed and unique presentation
- 2022-01-20 23:25:47下载
- 积分:1
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dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs...
dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs dhb manager wbs -dhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbsdhb manager wbs
- 2022-02-05 00:41:23下载
- 积分:1
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C language algorithms for large collections, including 10 books, all in English...
C语言算法大集合,包含10本书,全英文版的,对有学习英文版C语言的有很大帮助。-C language algorithms for large collections, including 10 books, all in English on the C language, learning English helps a lot.
- 2022-03-04 17:47:21下载
- 积分:1
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OpenGL 编程指南(高清非扫描),红宝书, 学习OpenGL必备的参考书,pdf格式,英文版第2版...
OpenGL 编程指南(高清非扫描),红宝书, 学习OpenGL必备的参考书,pdf格式,英文版第2版-OpenGL Programming Guide (HD non-scanning), Red Book, learn OpenGL necessary reference books, pdf format, English version 2
- 2022-05-13 16:43:31下载
- 积分:1
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通过对ANSI转义序列支持终端的实现。这个...
通过实现对 ANSI 的终端转义序列的支持.这个应用程序还更好地利用了 MIDP 的用户界面功能,并具有对用于用户输入的键盘和定制窗体的支持。您可以组合和匹配这些软件组建来为新的种类的网络意识(network-aware)移动应用程序提供基础。-through the realization of the right ANSI terminal escape sequences support. The application also to make better use of the MIDP user interface functions, and features for user input to the keyboard and Custom Window support. You can mix and match software to the formation of new types of network awareness (network-aware) mobile applications provide the infrastructure.
- 2022-10-28 19:25:03下载
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EasyARM615_ 48a this is very important
EasyARM615_ 48a this is very important
EasyARM615_ 48a this is very important
EasyARM615_ 48a this is very important
- 2023-08-23 12:50:03下载
- 积分:1
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利用Surfer绘图软件绘制平剖图及平剖图数字
利用Surfer绘图软件绘制平剖图及平剖图数字-Using Surfer mapping software draw orthographic drawings, and orthographic drawings figures
- 2022-06-18 04:48:11下载
- 积分:1
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C语言编程
The C programming Language
By Brian W. Kernighan and Dennis M. Ritchie.
Published by Prentice-Hall in 1988
c创始人的经典著作,被誉为c语言圣经-The C programming LanguageBy Brian W. Kernighan and Dennis M. Ritchie. Published by Prentice-Hall in 1988 c-founder of the classics, the Bible, known as c language
- 2022-05-24 07:44:27下载
- 积分:1