XPLMMapLayerID
typedef void * XPLMMapLayerID;This is an opaque handle for a plugin-created map layer. Pass it to the map drawing APIs from an appropriate callback to draw in the layer you created.
typedef void * XPLMMapLayerID;This is an opaque handle for a plugin-created map layer. Pass it to the map drawing APIs from an appropriate callback to draw in the layer you created.