-  ←Prev 
- AST
 A Library for Handling
 World Coordinate Systems
 in Astronomy
- Next→ 
- TOC ↑
    
Description:
 This function checks to see if a 
KeyMap contains a defined value for a given key. If
the key is present in the KeyMap but has an undefined value it returns zero (unlike
astMapHasKey which would return non-zero).  
Synopsis 
 int astMapDefined( AstKeyMap
this, const
char key
);  
 Parameters: 
  this  
 Pointer to the KeyMap.  
  key  
 The character string
identifying the value to be retrieved. Trailing spaces are ignored. The supplied string
is converted to upper case before use if the 
KeyCase attribute is currently set to
zero.  
  Returned Value 
  astMapDefined()  
 A non-zero value is returned if
the requested key name is present in the KeyMap and has a defined value.  
  Copyright (C) 2021 East Asian Observatory
  -  ←Prev 
- AST
 A Library for Handling
 World
Coordinate Systems
 in Astronomy
- Next→ 
- TOC ↑