Get the minimum and maximum altitude of a map, in metres.
Note this function fails for map types other than MAP_Heightfield and MAP_WaterMap.
bool CExtAPI::map_GetMinMaxAlt(ZMAP hMap, float& minval, float& maxval);
| Name | Type | Comment | 
|---|---|---|
| hMap | ZMAP | A ZMAP handle to the map, the minimum and maximum altitude of which is to be retrieved. | 
| minval | float& | A float to receive the minimum altitude (passed by reference.) | 
| maxval | float& | A float to receive the maximum altitude (passed by reference.) | 
False if an error occurred, and true otherwise.
None.