Description: Eagle Eye diagram of main function is to change the main map, in Eagle Eye chart changes in the rectangular box used to display the main graph shows the current borders. Here the main use of the built-in news MapX control MAPX_DISPID_MAPVIEWCHANGED mapping function to complete the function, when the main view changes, MapX control a message, call OnMapViewChanged () function for the corresponding treatment, so the main code OnMapViewChanged () function to achieve .
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