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How to modify the launch screen of the Macin Tower
Posted by: aihk on 2022-10-01 02:55:27
I watched the video some people modified the starting screen of the Maikin Tower ~ Does anyone know how to do it? thank you very much
Posted by: robin-fo on 2022-10-01 03:49:32
They probably just removed the "Welcome to Macintosh" string from the system file using ResEdit...

If you want to give the startup sequence a different look, create a StartupScreen file and put it inside the System Folder 🙂
Posted by: slomacuser on 2022-10-01 04:10:29

Welcome - Macintosh Garden

This is a very tiny program (8 KB). Here is an excerpt of the original ReadMe file (also included): Welcome is a simple application which allows you to edit the “Welcome to Macintosh.” message that is displayed when the Mac boots. Welcome comes with no warranty, use it at your own risk.
macintoshgarden.org macintoshgarden.org
Posted by: aihk on 2022-10-01 06:04:41
They probably just removed the "Welcome to Macintosh" string from the system file using ResEdit...

If you want to give the startup sequence a different look, create a StartupScreen file and put it inside the System Folder 🙂
What is the format of StartupScreen? I don't seem to see this file in the system folder, is it made by myself alone?
Posted by: Nixontheknight on 2022-10-01 15:51:55
What is the format of StartupScreen? I don't seem to see this file in the system folder, is it made by myself alone?
system FILE, not system FOLDER, there is a file in the system folder called System, it has a suitcase icon
edit: I didn't read all the way, I think you make it yourself
Posted by: Phipli on 2022-10-01 18:20:56
<blank page>
🙂
Posted by: robin-fo on 2022-10-02 10:00:50
What is the format of StartupScreen? I don't seem to see this file in the system folder, is it made by myself alone?
It's a file you can create yourself, using apps like ResEdit or MacPaint. It basically is a file with a 'PICT' resource with ID 0. I attached an example for you. Just extract it and put it in your System Folder.
Posted by: Crutch on 2022-10-02 12:56:44
I believe there were two StartupScreen formats supported:
  1. A file with a PICT resource in it, ID = 0
  2. A MacPaint document (which is not the same thing … MacPaint files are compressed bitmaps, not PICTs)
However I can’t actually immediately find this documented anywhere, would love if anyone can confirm. I swear I did #2 when I was a kid.

Edit: it looks like the ROM indeed does kind of the above, in that order, except option #2 is a straight uncompressed bitmap, not a MacPaint file? Definitely not what I remember …. https://github.com/elliotnunn/mac-r...4362d70d1e0259aef65ab814f/OS/StartMgr/Boot3.a
Posted by: robin-fo on 2022-10-02 12:58:23
I remember that some version of MacPaint could generate a StartupScreen from the file save dialog
Posted by: aihk on 2022-10-02 19:32:31
I remember that some version of MacPaint could generate a StartupScreen from the file save dialog
I found that the starting screen of the production can only be full screen, and the 7 system can not be a full screen. The system below 7 must be full screen
Posted by: Sideburn on 2026-04-02 22:09:06
It's a file you can create yourself, using apps like ResEdit or MacPaint. It basically is a file with a 'PICT' resource with ID 0. I attached an example for you. Just extract it and put it in your System Folder.

Ive been trying to get this to work with system 6.0.8 running in mini Vmac and it's always just a black screen and then the extension and control panel icons run across the bottom of the black screen. Anyone have any ideas?
Posted by: nathall on 2026-04-07 23:26:22
Not really, just a personal anecdote that I never, ever got this to work on any (real) Mac I tried it on back in the day. Not even with a file I downloaded somewhere that was supposedly a sample that worked.

I guess there must be some circumstances under which it does, but I never found them.
Posted by: slomacuser on 2026-04-08 11:21:58
@Sideburn you need a MacPaint picture to convert to boot screen with Screen Maker
Posted by: Sideburn on 2026-04-19 08:33:18
I tried everything and even downloading working ones others made and could not get it to work. Must have something to do with mini Vmac emulator and or system 6.0.8
Posted by: nathall on 2026-04-19 21:03:13
That was my experience as well, although I tried it all on real hardware.
Posted by: adespoton on 2026-04-29 16:14:25
I started off with the one that's bundled with Beyond Dark Castle, and just edited the image.

The one that came with the vMac (not Mini vMac) emulator boot floppy also works.
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