Global Mapper SDK
GM_3DSetChangeViewCallback
Sets the callback function to be called when a button is pressed (either a pan or zoom button) in the 3D view that would typically result in a new set of data to be displayed in the 3D window.
Syntax
C++
Copy
void __stdcall GM_3DSetChangeViewCallback
(
GM_3DChangeViewCallbackFunc aCallbackFunc,
void* aUserData
);
Remarks
Provide this callback if you want to keep your main view in sync with the 3D view, like in the Global Mapper application. If you do not provide a callback, the default behavior is to just update the data displayed in the 3D view independent of any other view.