Screen Saver Interrupting 3270 Macro

[cubfan]

I am using Extra 6.4 and Windows NT. I have a macro that enters data into an
online and it can run for a couple of hours. If someone forgets to turn the screen saver off the macro is interrupted after 15 minutes which is our LAN default. The macro keeps sending keystrokes but they are not understood by the online so we have to restart it from the point the screen saver came on. I don't understand how the screen saver can pop up if keystrokes are being sent to the online but are somehow not recognized by the PC. Has anybody out there come across a similar situation ??

 

[cssun]

I believe that issuing Sendkeys or other API 'keystrokes' does not invoke the keyboard/mouse handler interrupts which is what drives the screensaver timer routine