目录前言实现功能类定义和成员变量onCreate方法权限检查和图片选择处理选择的图片图片拼接功能图片保存功能使用ImageStitcher类拼接图片类定义和方法计算拼接后图片的尺寸计算逻辑创建并绘制拼接后的图片绘制过程注意
As a relative newcomer to 开发者_运维问答MFC, I see Device Contexts (DCs) a lot. I vaguely understand that it\'s something to do with drawing, but the specifics are not very well explained anywhere th