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Displays as Backdrop Windows (always behind)
Posted: Fri Jul 21, 2023 8:32 pm
by NathanH
Hi,
I've written several programs which would benefit if their display could always be behind other windows on the Workbench; i.e., backdrop windows. For example, I've got a calendar/analog clock which pretends to be transparent by placing a grab of the desktop as the background. The illusion of transparency is ruined when other windows are placed behind it. I've also written a couple of dock programs that should be backdrop windows. Is this possible? Thanks,
NathanH
Re: Displays as Backdrop Windows (always behind)
Posted: Mon Jul 31, 2023 12:54 am
by airsoftsoftwair
Not very likely to come because background windows are very Amiga-centric and not available on other platforms.
Re: Displays as Backdrop Windows (always behind)
Posted: Mon Jul 31, 2023 9:16 pm
by NathanH
Okay, thanks.
NathanH
Re: Displays as Backdrop Windows (always behind)
Posted: Sat Jun 07, 2025 5:28 pm
by djg
airsoftsoftwair wrote: ↑Mon Jul 31, 2023 12:54 am
Not very likely to come because background windows are very Amiga-centric and not available on other platforms.
I was looking for the same thing just now.
Maybe if I second the suggestion it would become a little more likely? I agree that background windows are very Amiga-centric but I am not sure if that is a good enough reason not to implement this if it solves an issue related to that very Amiga-centric thing. I have a window now that covers the entire desktop to show pictures, but when I open a file requester and click on the depth gadget of that requester by mistake or otherwise, I have no way of getting back control after clicking in my window because the requester is then behind my window. I must have clicked on the depth gadget once by mistake because I did not know what was going on and thought that the system had crashed or something.
Re: Displays as Backdrop Windows (always behind)
Posted: Sun Jun 08, 2025 5:44 pm
by NathanH
Hi,
There already seems to also be a lot of amiga-centric stuff in Hollywood which is great because I imagine that we were the earlier (if not only) adopters of Hollywood in the beginning and are probably still the core compared to other platform users.
NathanH
Re: Displays as Backdrop Windows (always behind)
Posted: Sun Jun 15, 2025 4:09 pm
by airsoftsoftwair
Ok, you convinced me, here it is
Code: Select all
- New [Amiga]: Added support for backdrop windows; these are special windows specific to AmigaOS and its
clones that always stay behind all other windows; to open a backdrop window, just set the new "Backdrop"
tag to TRUE in @DISPLAY or CreateDisplay()
Re: Displays as Backdrop Windows (always behind)
Posted: Sun Jun 15, 2025 7:01 pm
by djg
airsoftsoftwair wrote: ↑Sun Jun 15, 2025 4:09 pm
Ok, you convinced me, here it is
Code: Select all
- New [Amiga]: Added support for backdrop windows; these are special windows specific to AmigaOS and its
clones that always stay behind all other windows; to open a backdrop window, just set the new "Backdrop"
tag to TRUE in @DISPLAY or CreateDisplay()
Very, nice, thanks!

Re: Displays as Backdrop Windows (always behind)
Posted: Tue Jun 17, 2025 8:52 pm
by NathanH
Yes, thanks so much!!!