基于DLL和API的Intemet链接器设计

首先介绍了什么是DLL库和API函数,并详细说明了DLL的声明万法及API函数的调用方式,然后在VB窗体中对Internet链接器的界面进行详细设计,最后是关于本设计的代码编程实现。本设计与外部网络环境相结合,让用户体验到了WindowsAPI函数的强大编程能力。     

基于可视化平台的API接口研究

在各种可视化编程平台中,尤其是与外部网络环境相结合,为了体现强大的高级编程能力,可用Windows系统提供的大量API函数,必然会起到事半功倍的效果。本文首先介绍了API函数以及动态链接库DLL,其次简要说明了API函数的分类,然后重点分析了在可视化平台中如何调用API函数及其应用API函数的高级编程能力,最后阐述了用户调用API函数的技巧和注意事项,以提高用户灵活掌握API接口的高级编程应用能力。     

API函数在VB中的应用

所谓API就是“应用程序接口”(Application Programing Interface)，是一些用C语言编写，由操作系统自身调用的函数。Windows API函数由许多“动态链接库”或DLL组成。在32位Windows中，核心的Windows API DLL有如下一些：     

VB应用程序中灵活使用INI文件

VB是Microsoft公司开发的一种通用的基于对象的程序设计语言。VB可以用于开发多媒体、数据库、网络、图形等方面的应用程序。VB支持DLL的调用,DLL中的函数称为API函数。可以通过调用相应的API函数来实现操纵INI文件的功能。结合实例介绍了在VB中调用WindowsAPI函数操作初始化文件的方法和优点。尤其在数据库访问中使用INI文件可使用户在数据库路径改变时免去修改原代码之苦。本文将详细介绍INI文件在VB应用程序中的使用。     

动态链接库注入研究

动态链接库（DYNAMTIC LINK LIBRARY）和视窗（WINDOWS）系统紧密相关，互为依存。动态链接库收容了几乎一切WIN32 API函数，提供了绝大多数功能调用。DLL有三大支撑点：KERNEL32．DLL整编了管理内存、进程和线程的函数；USER32．DLL带领执行用户界面任务的函数；GDI32．DLL则将绘图和显示文件的函数纳入辖内。本文主要是讲述它的注入方式，从而使之更好地发挥作用。     

基于Visual C++6.0的动态链接库编程的研究与实现

本文主要研究Visual C 6.0的动态链接库DLL编程的实现,介绍动态链接库的概念和链接的方法、动态链接库的导出函数及创建方法,通过简单实例说明动态链接库实现的隐式调用和显式调用.     

MFC常规DLL的创建与访问

动态链接库（DLL）是Windows编程的重要特色之一。Visual C＋＋支持三种DLL,即非MFC动态库、MFC常规DLL、MFC扩展DLL,其中,MFC常规DLL得到了广泛的应用。本文结合示例讨论MFC常规DLL的创建与访问。应用程序访问常规DLL有两种方式：隐式链接和显式链接。     

基于达芬奇技术的数字视频解决方案

介绍了TI最新推出的达芬奇技术的特点,分析了其在视频产品中应用的最新软硬件技术,在重点研究应用编程接口(API)的基础上,通过实例说明了运用API函数能够简单方便地实现数字视频,且应用代码既灵活又通用。     

SQLite轻型数据库在试飞领域的应用

正对SQLite轻型数据库的特性、支持的数据类型以及完成数据库操作的API函数的使用方法进行了研究,运用面向对象的技术对SQLite API函数进行类封装,以动态和静态链接库的导出类方式实现SQLite轻型数据库的基本操作,并举例演示了动态和静态链接库在编程中的使用方法。通过SQLite轻型数据库与Oracle和SQL Server 2000等主流数据库在飞行试验中的应用进行对比与分析,充分展示了SQLite轻     

C~#托管代码调用非托管代码参数传递的实现方法

基于.NET平台的应用程序开发,经常会需要调用Windows API等非托管代码DLL,托管代码和非托管代码之间的参数传递是一个不可缺少的环节。.NET平台提供了多种参数传递方法,每种方法都有其适用范围,就托管代码调用非托管代码及其参数传递方法进行了探讨。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

Low doses of a red wine ingredient figh diabetes in mice

Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Molecular motor assembly of a biomimetic system

Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence