viUnmapAddress
                                            
 This section contains information specific to the Windows product.
Syntax
viUnmapAddress(ViSession vi);
Description
This function unmaps memory space previously mapped by the viMapAddress function.
Parameters
| 
                                                     Name  | 
                                                
                                                     Dir  | 
                                                
                                                     Type  | 
                                                
                                                     Description  | 
                                            
|---|---|---|---|
| 
                                                     vi  | 
                                                
                                                     IN  | 
                                                
                                                     ViSession  | 
                                                
                                                     Unique logical identifier to a session.  | 
                                            
Return Values
| 
                                                     Type ViStatus  | 
                                                
                                                     This is the function return status. It returns either a completion code or an error code as follows.  | 
                                            
| 
                                                     Completion Code  | 
                                                
                                                     Description  | 
                                            
|---|---|
| 
                                                     VI_SUCCESS  | 
                                                
                                                     Operation completed successfully.  | 
                                            
| 
                                                     Error Code  | 
                                                
                                                     Description  | 
                                            
| 
                                                     VI_ERROR_INV_SESSION  | 
                                                
                                                     The given session or object reference is invalid (both are the same value).  | 
                                            
| 
                                                     VI_ERROR_NSUP_OPER  | 
                                                
                                                     The given vi does not support this function.  | 
                                            
| 
                                                     VI_ERROR_WINDOW_NMAPPED  | 
                                                
                                                     The specified session is not currently mapped.  |