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GM_SetExportCropAreas

Sets the list of crop areas to use when exporting using the export functions. If you set a crop area, then any subsequent exports will be cropped to those areas. If you pass in NULL for the crop area list, the crop area list will reset and the default rectangle-based cropping will be used.

Syntax
GM_DLL_EXPORTED GM_Error_t32 __stdcall GM_SetExportCropAreas
(
const GM_AreaFeature_t* aAreaList,  // IN: List of areas to crop to (NULL to reset to default crop)
uint32                  aNumAreas,  // IN: Number of areas in aAreaList
const GM_Projection_t*  aAreaProj   // IN: Projection system the area coordinates are in (use NULL for current projection)
);