Returns the value of an environment variable. 
                   
               
            
 
            
            Note: When calling this routine, ensure you are using the 1024 calling convention. 
               		
            
 
            
            
               Syntax:
 
                
               CALL "C$GetEnv" USING name, value [, return]
 
                 
            
            
               Parameters:
 
                
               
                
                   
                  
                  - name 
                     
                  
- PIC X(n) 
                     
                  
- value 
                     
                  
- PIC X (n) 
                     
                  
- return 
                     
                  
- PIC 9(n) BINARY, where n can be a digit from 1 to 9 
                     
                  
  
            
            
               On Entry:
 
                
               
                
                   
                  
                  - name 
                     
                  
- The name of the environment variable. 
                     
                  
  
            
            
               On Exit:
 
                
               
                
                   
                  
                  - value 
                     
                  
- The value of the environment variable, returned from the call. 
                     
                  
- return 
                     
                  
- The result code returned from the call: zero for success and non-zero for failure. 
                     
                  
  
            
            
               Comments:
 
                
               
               On UNIX, environment variable names are case-sensitive. On Windows, environment variable names are not case-sensitive.