Returns information about the size of the current screen. 
                   
               
            
 
            
            
               Parameters:
 
                
               
                
                  
                  
                      
                         
                         
                        
                         
                           
                            
                              
                              | PPB-Fill-Attribute | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Fill-Character | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-First-Visible-Col | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-First-Visible-Row | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Panel-Height | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Panel-Start-Column | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Panel-Start-Row | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Panel-Width | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Visible-Height | pic 9(4) comp-x. | 
 
                           
                            
                              
                              | PPB-Visible-Width | pic 9(4) comp-x. | 
 
                           
                         
                        
                     
                    
                  
                 
               
              
            
             
            
            
               On Exit:
 
                
               
                
                  
                  
                      
                         
                         
                        
                         
                           
                            
                              
                              | PPB-Fill-Attribute | The current backdrop attribute. | 
 
                           
                            
                              
                              | PPB-Fill-Character | The current backdrop character. | 
 
                           
                            
                              
                              | PPB-First-Visible-Col | 0 | 
 
                           
                            
                              
                              | PPB-First-Visible-Row | 0 | 
 
                           
                            
                              
                              | PPB-Panel-Height | The number of rows visible on the screen. | 
 
                           
                            
                              
                              | PPB-Panel-Start-Column | 0 | 
 
                           
                            
                              
                              | PPB-Panel-Start-Row | 0 | 
 
                           
                            
                              
                              | PPB-Panel-Width | The number of columns on the screen. | 
 
                           
                            
                              
                              | PPB-Visible-Height | The number of rows visible on the screen. | 
 
                           
                            
                              
                              | PPB-Visible-Width | The number of columns on screen. | 
 
                           
                         
                        
                     
                    
                  
                 
               
              
            
             
            
            
               Example:
 
                
                      move pf-get-screen-info to ppb-function.
       call "PANELS" using panels-parameter-block.
       if ppb-status not = zero
*         (code to abort) 
                 
            
           
         
         
Comments:
You can change the backdrop character and attribute using PF-Set-Screen-Backdrop.