====== zmap_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.

===== Files =====

^ Declaration | ''Zeolite.h'' |
^ Implementation | ''Zeolite.cpp'' |

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

<code="C++">
bool zmap_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.