SCREEN INVALID

This command will return a one if the application has been switched out and back in.

  Syntax 
Return Integer=SCREEN INVALID()
  Returns

a one if the application has been switched out and back in

  Example Code 
cls

set display mode 800,600,32

set window on

maximize window

wait 1000*8

print "screen invalid "+str$(screen invalid()) 

do

loop

end
  See also

DISPLAY Commands Menu
 Index