第1个回答 2008-09-14
Active控件概述
Active是一个Microsoft的术语,它指的是一组包括控件、DLL、Active文档的组件,通常以动态链接库的形式存在。
Active控件的数据输入和函数功能的执行必须通过容器,因此Active控件必须具备如下性能机制:
1、属性和方法:Active控件必须提供属性的名称、方法的名称及参数,以便容器可以存取和改变Active控件的属性参数。
2、事件:通知容器在Active控件发生的事件,如属性参数的改变、用户的单击、双击动作等。
3、存储:容器由这项机制通知Active控件存储和提取有关信息数据。Active控件只需在Window d的Registry数据库中注册后,就可以象其他Window应用程序一样发挥各自功能。
第2个回答 2008-09-14
active----
adjective
1 (of a person) engaging or ready to engage in physically energetic pursuits : I needed to change my lifestyle and become more active.
• moving or tending to move about vigorously or frequently : active fish need a larger tank.
• characterized by energetic activity : they enjoyed an active social life.
• (of a person's mind or imagination) alert and lively.
2 doing things for an organization, cause, or campaign, rather than simply giving it one's support : she was an active member of the church | he had never been very active in the affairs of the institute | he enjoyed the active support of the government.
• (of a person) participating or engaged in a particular sphere or activity : a politically active student body.
• [ predic. ] (of a person or animal) pursuing their usual occupation or activity, typically at a particular place or time : tigers are active mainly at night.
3 working; operative : the old mill was active until 1960.
• (of a bank account) in continuous use.
• (of an electrical circuit) capable of modifying its state or characteristics automatically in response to input or feedback.
• (of a volcano) currently erupting, or that has erupted within historical times. Often contrasted with dormant or extinct .
• (of a disease) in which the symptoms are manifest; not in remission or latent : active colitis.
• having a chemical or biological effect on something : 350 active ingredients have been banned from pesticides.
4 Grammar relating to or denoting the voice that attributes the action of a verb to the person or thing from which it logically proceeds (e.g., of the verbs in guns kill and we saw him). The opposite of passive .
noun Grammar
an active form of a verb.
• ( the active) the active voice.
DERIVATIVES
actively adverb
ORIGIN Middle English (in the sense [preferring action to contemplation] ): from Latin activus, from act- ‘done,’ from the verb agere.