一个Delphi控件的设计与实现

众所周知，Ｄｅｌｐｈｉ作为ＲＡＤ工具，因其高效的编译器、友好的可视化界面而大受青睐，在数据库、多媒体，网络等系统的开发中得到了广泛的应用。本文从多媒体系统应用的需求出发，针对标准ＣｈｅｃｋＢｏｘ控件的不足，提出了改进的构想，设计了一个新的、真正图形化的ＣｈｅｃｋＢｏｘ控件－ＭｙＣｈｅｃｋＢｏｘ，并在Ｄｅｌｐｈｉ４中实现了该控件。该控件无论从外观上，还是功能上，均超过了标准ＣｈｅｃｋＢｏｘ控件。

Delphi Control: Design and Implementation

As is known, Delphi is a Rapid Application Development (RAD) Kit. With its efficient compiler and friendly interface, it is applied in many areas, such as Database Systems, Multimedia Systems and Networks. There are Many standard controls (such as CheckBox)in Delphi, which can satisfy the requirements of most applications. However, it is sometimes necessary to develop one's own CheckBox control to meet the particular needs of multimedia system applications. This paper introduces a new graphic CheckBox control MyCheckBox, an extension of the standard CheckBox control, which has been implemented in Delphi 4 successfully.