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cadaver
Groupie in Training
Joined: 14 Jul 2004
Posts: 59
Location: Finland
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 Posted: Mon Jul 26, 2004 3:42 pm Post subject: Banging metal in systemfriendly way |
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I've looked some newsgroups posts and misc. resources about the subject and most seem to point into a few things:
- Use InitView() & LoadView() to install your own copperlist
- Write a highpriority inputhandler to snatch away key/mouse events so that they won't take rastertime
- Of course, use OwnBlitter() and DisownBlitter() as needed
But a few questions remain: if you go this route, how do you know when your own program gets "defocused"? (so that you can let go of the input events and not cause lockup) Do you poll GfxBase->ActiView (or something) to see if the copperlist has changed back to the system? And if so, how do you know when you can switch back to your own view?
Sorry if these are stupid questions.. |
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xeron
Lemon Amiga Donator
Joined: 16 Jul 2004
Posts: 315
Location: Bristol, UK
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| Posted: Mon Jul 26, 2004 4:27 pm Post subject: Re: Banging metal in systemfriendly way |
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| cadaver wrote: |
- Use InitView() & LoadView() to install your own copperlist
- Write a highpriority inputhandler to snatch away key/mouse events so that they won't take rastertime
But a few questions remain: if you go this route, how do you know when your own program gets "defocused"? |
You won't get "defocused" since you've removed the system copperlist and view, and they won't come back until you LoadView() the old view back, and since you've put in a high priority input event swallower, the user can't swap screens until you decide to do it for them anyway.
I did have a system that opened an intuition screen, but then installed its own copperlist. When the user clicked the mouse on the top right of my custom screen (using my own direct input routines), I reloaded the system copperlist and put my intuition screen to the back. I then polled IntuitionBase->FirstScreen every 5 VBLs to see if it was my screen, and if so, i reinstated my view and copperlist.
Mostly, however, I just safely shut down the OS in such a way that I can bring it back, and forget about it. I discussed how to do that here. |
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cadaver
Groupie in Training
Joined: 14 Jul 2004
Posts: 59
Location: Finland
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| Posted: Mon Jul 26, 2004 5:54 pm Post subject: |
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| Ok, thanks a lot! Now I see it... time for some dirty experimenting in the near future... |
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