"C" command in icon validation strings

When did “C” become a valid command in icon validation strings? It isn’t in the docs for RO3.5, unless I’ve missed something.

Ursula – https://gitlab.riscosopen.org/RiscOS/Sources/Desktop/Wimp/-/commit/0783a1f6735b93f683fc69e087ee8bf6901ab7a8

So it’s part of the Phoebe work, not an Acorn official release.

Pfft. It was added as part of the Java project, not Ursula/Phoebe.

http://www.vigay.com/inet/acorn/nested.html#swi400c2

(I could’ve sworn I extended the toolbox gadgets for 24bpp colours, but I can’t find anything so I maybe it was just on my todo list.)

I did wonder if it was part of the nested Wimp…

The obvious question is why isn’t that document included in *.desktop.wimp.docs?

The Wimp SWIs StrongHelp manual v1.26 says…
Wimp 3.98 added C\{BBGGRR\}[/\{BBGGRR\}] syntax
Wimp 4.00 added /[slabbed-in background]/[moat]/[light 3D edge]/[dark 3D edge] to the end.
Not authoritative, but seems to have started with the Nested Wimp.
Shame that the Toolbox has not been updated (yet) to use 24-bit colours in the 26 years since!

Not authoritative, but seems to have started with the Nested Wimp.

Authoritative as that’s what Piers said and he pointed to the Nested Wimp Functional Specification.

in the 26 years since!

Copy-paste that phrase for all manner of things. ;)

RISC OS 3.8

Note that C/10_8421504 might not be what you’re expecting for ‘mid-grey’ but is legal. Sorry about that.

(I should clarify that the RO4/6 “selected” colours are used for b21 icon selection not text selection, sadly. So you can’t have text highlighted in different colours in different writables. You can’t even cheat by selecting the writable that contains the selection – it still uses fg+bg for text selection or the wimp-wide custom text selection colours. Boo.)

All of these colours are available to Custom Icons, so it’s possible to use all ten colours within an icon:

Bg,Fg,1,2,3,4,5,6 can be specified per-icon, SelBg,SelFg are global

It would be unusual to require that number of colours, but it’s nice to have the option. That’s a Type90 icon like these – there are only six icons here:

Does bold, italic, underlining and tabs too