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157c6a3f0c
Correct docs for some DeskTop icon APIs, and improve resilience of some of the APIs to having atypical grafports selected when called.
1022 B
1022 B
Preview
These files are a special class of Desk Accessory which reside in
the PREVIEW subdirectory relative to DESKTOP2 (next to DESK.ACC).
These DAs will be invoked automatically for certain file types when
File > Open is run or the files are double-clicked.
- show.text.file
- Handles text files (TXT $04)
- show.image.file
- Handles image files (FOT $08)
- 8k Hires or 16k Double Hires images are supported
- show.font.file
- Handles MGTK font files (FNT $07)
The files can optionally be copied into the DESK.ACC directory to
allow direct invocation from the Apple menu. This can be useful to
preview files of different file types e.g. image files saved as BIN
$06.
See API.md for programming details.
See the DA README.md for build and installation details.
NOTE: ProDOS file type FNT $07 is reserved for Apple /// SOS font files, but given their scarcity the type is re-used here.