mrp@minster.york.ac.uk (06/14/91)
When I have my screenblanker module loaded in my Arc (310), in a couple of games, the screen goes into blank mode while I'm still bashing away at the keys. One of my friends said this was probably acheived by turning off the keyboard interrupt to make things go faster, but still being able to read the status of keys. Assuming this is correct how can I do this (from C)? I don't have the PRM's but managed to scrounge a brief look and I couldn't see how to do it. As a thought, if this was possible, wouldn't turning it off when the hourglass was on be a good idea and speed things up a bit. - Martin #===============================#===========================================# | Martin Portman | Phone: (0904) 432735 | | Dept. of Comp. Science | JANET: mrp@uk.ac.york.minster | | University of York | UUCP: ...!mcsun!ukc!minster!mrp | | Heslington | ARPA: | | YORK YO1 5DD ENGLAND | mrp%minster.york.ac.uk@nsfnet-relay.ac.uk | #===============================#===========================================# | My heart is beating, I'm alive but I don't call this living | #===========================================================================#
rogersh%t3a@uk.ac.man.cs (Huw J. Rogers) (06/17/91)
In article <676893474.5183@minster.york.ac.uk> mrp@minster.york.ac.uk writes: >When I have my screenblanker module loaded in my Arc (310), in a >couple of games, the screen goes into blank mode while I'm still >bashing away at the keys. One of my friends said this was probably >acheived by turning off the keyboard interrupt to make things go >faster, but still being able to read the status of keys. > >Assuming this is correct how can I do this (from C)? I don't have the >PRM's but managed to scrounge a brief look and I couldn't see how to >do it. The problem with the screenblankers is that they don't intercept the key pressed/released event. This event is what drives the games and thus the keypresses never get seen by the screenblanker. The event generates internal key numbers on key press AND release and is documented in the PRMs. You can do it in C by using a function pointer to generate the address of the handler routine that needs to be passed to the appropriate SWI - be careful when coding event routines in C however... > >As a thought, if this was possible, wouldn't turning it off when the >hourglass was on be a good idea and speed things up a bit. Er... no. ;-) [ H.J.Rogers (INTERNET: rogersh%p4%cs.man.ac.uk@cunyvm.cuny.edu) ] [ ,_, (BITNET/EARN: rogersh%p4%cs.man.ac.uk@UKACRL.BITNET) ] [ :-(_)-o (UUCP: ...!uunet!cunyvm.cuny.edu!cs.man.ac.uk!p4!rogersh) ] [ _} {_ (JANET: rogersh%p4@uk.ac.man.cs) ]