图形、文本和位图
VisualC++的CDC(DeviceContext,设备环境)类是MFC中最主要的类之一,它封装了绘图所需求的一切函数,是用户编写图形和文字管理程序必不可少的。当然,制作图形和文字时还必须指定相应的设备环境。设备环境是由Windows保留的一个数据结构,该结构包括使用程序向设备输出时所需求的信息。第7章图形、文本和位图.ppt
(The CDC (DeviceContext) class of Visual Cis one of the most important classes in MFC. It encapsulates all functions required for drawing, and is indispensable for users to write graphics and text management programs. Of course, the corresponding equipment environment must also be specified when making graphics and text. The device environment is a data structure reserved by Windows, which includes the information required when using programs to output to devices.
Chapter 7 Graphics, Texts and Bitmaps. ppt)
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