====== map_GetMinMaxAlt ======


===== Description =====

Get the minimum and maximum altitude of a map, in metres. 

Note this function fails for [[zeolite:mapid|map types]] other than MAP_Heightfield and MAP_WaterMap.

===== Function prototype =====

<code>bool CExtAPI::map_GetMinMaxAlt(ZMAP hMap, float& minval, float& maxval);</code>

===== Arguments =====

^ 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.) |

===== Return value =====

False if an error occurred, and true otherwise.

===== Comments =====

None.