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目 录
GDI 介绍......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... .........................................................................................................................................3
1. GDI 的三个部分..................................................................................................................3
2. 基于类的接口结构..............................................................................................................4
GDI 的新增特性?........................................................................................................................... ........................................................................................................................... ........................................................................................................................... ...........................................................................................................................4
1. 新特性..................................................................................................................................4
2．编程模式的变化.................................................................................................................7
直线、曲线和图形......................................................................................................................... ......................................................................................................................... ......................................................................................................................... .........................................................................................................................10
1. 矢量图形概述.................................................................................................................... 11
2. 钢笔、直线和矩形............................................................................................................12
3．椭圆和弧线.......................................................................................................................13
4．多边形...............................................................................................................................14
5. 基数样条............................................................................................................................14
6. 贝塞尔样条........................................................................................................................15
7. 路径....................................................................................................................................16
8. 画笔和填充的形状............................................................................................................18
9. 打开的曲线和闭合的曲线................................................................................................21
10. 区域..................................................................................................................................22
11. 剪辑..................................................................................................................................23
12.拉平路径............................................................................................................................24
13. 用直线和曲线消除锯齿..................................................................................................24
图像、位图和图元文件................................................................................................................. ................................................................................................................. ................................................................................................................. .................................................................................................................25
1. 位图类型............................................................................................................................25
2．图元文件...........................................................................................................................28
3．绘制、定位和克隆图像...................................................................................................29
4. 裁切和缩放图像..............................................................................................................31
坐标系统和变形............................................................................................................................. ............................................................................................................................. ............................................................................................................................. .............................................................................................................................32
1. 坐标系统类型....................................................................................................................32
2．变形的矩阵表示形式.......................................................................................................35
3．全局变形和局部变形.......................................................................................................39
图形容器......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... .........................................................................................................................................41