GM_SetQueryProjectionCallback

Sets the function to call to select a projection for a layer when being loaded if the projection for that layer cannot be automatically determined. If a callback is provided, it will be called rather than the projection selection dialog being displayed. Pass NULL in for the callback function to restore the standard projection selection dialog.

Syntax

GM_DLL_EXPORTED void __stdcall GM_SetQueryProjectionCallback
(
GM_QueryProjectionCallbackFunc  aCallbackFunc
);