GM_MapCatalogCreate |
Creates a new map catalog layer with the given description and native projection. Once you have created a new map catalog, use the handle returned in calls to GM_MapCatalogAddFile or GM_MapCatalogAddLayer to add new maps to the catalog. Use GM_MapCatalogSave to save the map catalog to a disk file that can later be loaded using any of the GM_LoadLayer* functions.
SyntaxGM_LayerHandle_t32 GM_MapCatalogCreate ( const char* aDescription, // IN: Description to use for layer (can be NULL to use default) const GM_Projection_t* aProj // IN: Native projection of new layer (NULL for Geographic/WGS84/Arc Degrees) );