Window Navigation - SENDMSG() Function 1
                                            Syntax
OLDNAV$=SENDMSG(sysgui,id,1,0,string${,context})
Description
This version of the SENDMSG() function enables either Tab or Enter to be used in window navigation. It returns a string formatted as "NAVIGATE=oldnav ", where oldnav is the previous navigation type.
The following table identifies the entries for the string$ and context parameters:
| 
                                                         Parameter  | 
                                                    
                                                         Description  | 
                                                
| 
                                                         string$  | 
                                                    
                                                         String containing one of the following:  | 
                                                
| 
                                                         
  | 
                                                    
                                                        
  | 
                                                
| 
                                                         
  | 
                                                    
                                                        
  | 
                                                
| 
                                                         context  | 
                                                    
                                                         Window context, if not current.  |