fry@brauer.harvard.edu (D. Spotts Fry) (10/27/89)
A couple of weeks ago I posted code to use a VBL task tied to a slot interrupt and a Mac II video card to do smooth animation. This involved calling GetVideoDefault() at the beginning of the program to find the slot number of the startup video card. Since then, some program or init or other messed up my computer's startup information so that GetVideoDefault was returning a slot number of 96(!!), not in the required 9 to 14 range. Passing 96 to SlotVInstall then failed. I used the Monitors cdev to fix things up, but my question is how should I program for this? What should I do if I get a strange slot number for the default video. How does the system handle it itself at boot time? David Fry fry@huma1.harvard.EDU Department of Mathematics fry@huma1.bitnet Harvard University ...!harvard!huma1!fry Cambridge, MA 02138