功能： 反查汉字的区位码，或逐区显示汉字。 说明： 在源代码中，不仅演示了GB内码的操作，还演示了drag-drop功能的实现。-functions : anti-Chinese investigation in an area code, or case-by-district shows Chinese characters. Descr iption : In the source code, not only demonstrated the GB internal codes, the

vc+ArcEngine建立框架程序:制作浮动可变大小的控制窗口，可以实现图层拖放,vc+ ArcEngine procedures for the establishment of the framework: the production of a floating variable to control the size of the window, you can drag and drop layers to achieve

自制地图浏览控件，可拖拽缩放测距离测角度(Self - made map view control, can drag and drop the zoom Angle.)