acmfiu@serss0.fiu.edu (ACMFIU) (05/23/91)
GetCaretTime returns the number of ticks that is to occur between cursor blinks. because i'm handling my own blinking cursor, i need to use this. so, am i correct in thinking that i have some counter that i increment through my main loop and when it gets to the value returned by GetCaretTime i blink the cursor. if so, then i must be doing something wrong because the cursor is blinking awefully fast. the value that GetCaretTime returns to me is $1e. my code looks like the following: inc num_ticks pha pha _GetCaretTime pla ply cmp num_ticks beq :1 rts :1 jsr draw_cursor stz num_ticks :2 pha pha _GetCaretTime pla ply cmp num_ticks bne :2 stz num_ticks jsr erase_cursor NOTE: the above code is only for blinking the cursor. i know i'm suppose to handle keypresses between blinking and erasing the cursor but that's not the issue here. also, i update on the main event loop because i never get null events for some reason. albert
toddpw@nntp-server.caltech.edu (Todd P. Whitesel) (05/23/91)
acmfiu@serss0.fiu.edu (ACMFIU) writes: >GetCaretTime returns the number of ticks that is to occur between cursor >blinks. because i'm handling my own blinking cursor, i need to use this. >so, am i correct in thinking that i have some counter that i increment >through my main loop and when it gets to the value returned by GetCaretTime >i blink the cursor. if so, then i must be doing something wrong because >the cursor is blinking awefully fast. That's because you aren't counting TICKS (heartbeat interrupts). You're counting _GetCaretTime calls, neglecting the counter code. >also, i update on the main event loop because i never get null events for >some reason. I believe TaskMaster does not return until its internal call to GetNextEvent returns a non-null event the application wishes to see, which would make it a 'WaitNextEvent' call with automatic handling of certain events. Todd Whitesel toddpw @ tybalt.caltech.edu
dlyons@Apple.COM (David A Lyons) (05/28/91)
In article <1991May23.060838.342@nntp-server.caltech.edu> toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes: >[...] >I believe TaskMaster does not return until its internal call to GetNextEvent >returns a non-null event the application wishes to see [...] Actually TaskMaster is perfectly happy to give you a null event. Each TaskMaster call calls GetNextEvent exactly once or zeronce (once normally, but zeronce if you set the flag bit saying that you've already filled in the task record with an event you want it to handle for you). -- David A. Lyons, Apple Computer, Inc. | DAL Systems Apple II System Software Engineer | P.O. Box 875 America Online: Dave Lyons | Cupertino, CA 95015-0875 GEnie:DAVE.LYONS CompuServe:72177,3233 Internet:dlyons@apple.com My opinions are my own, not Apple's.