EVC 下读取GPS数据并且显示其中包括从GPS上用和窜口连接读取数据，坐标信息等-read GPS data also show which includes GPS and channeling used to read data connectors, Coordinate information

EVC编写，S3c2440平台测试通过，DGraph类的一个使用，实现对话框上的坐标图全屏显示以及退出全屏显示的切换-EVC prepared, S3c2440 test platform, DGraph kind of a use, the realization of the dialog box on the full screen map coordinates, as well as switching out of full screen