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Groups > comp.sys.acorn.programmer > #6366
| From | Paul Sprangers <Paul@sprie.nl> |
|---|---|
| Subject | Reading the dimensions of a sprite or JPEG on disk |
| Newsgroups | comp.sys.acorn.programmer |
| Date | Sat, 28 May 2022 12:08:24 +0200 (Custom) |
| Message-ID | <59ef9cf586Paul@sprie.nl> (permalink) |
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Dear all, I would like to know the x and y dimensions of a sprite or a JPEG on disk. For a JPEG, I found the following OS call: SYS "JPEG_FileInfo",0,path$ TO ,,x%,y% "path$' is the path of the JPEG in question, obviously. However, x% and y% are always 0. What am I doing wrong? And does a similar call exist for sprites? OS_SpriteOp only examines sprites in a sprite pool, not on disk - as far as I understand... Kind regards, Paul -- https://riscos.sprie.nl
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Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-28 12:08 +0200
Re: Reading the dimensions of a sprite or JPEG on disk News <chrisjohnson@spamcop.net> - 2022-05-28 11:37 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-28 12:48 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Gerald Holdsworth <nospam@hollypops.co.uk> - 2022-05-28 14:26 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-30 13:58 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Gerald Holdsworth <nospam@hollypops.co.uk> - 2022-05-30 15:16 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-30 16:51 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Gerald Holdsworth <nospam@hollypops.co.uk> - 2022-05-30 18:07 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-31 09:27 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Gerald Holdsworth <nospam@hollypops.co.uk> - 2022-05-31 12:12 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-31 15:30 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Gerald Holdsworth <nospam@hollypops.co.uk> - 2022-05-31 21:51 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Steve Fryatt <news@stevefryatt.org.uk> - 2022-05-31 23:29 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Martin Wuerthner <spamtrap@mw-software.com> - 2022-06-07 16:33 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-06-11 08:56 +0200
Re: Reading the dimensions of a sprite or JPEG on disk Sprow <news@sprow.co.uk> - 2022-06-12 08:15 -0700
Re: Reading the dimensions of a sprite or JPEG on disk Martin <News03@avisoft.f9.co.uk> - 2022-05-31 13:10 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-31 15:59 +0200
Re: Reading the dimensions of a sprite or JPEG on disk News <chrisjohnson@spamcop.net> - 2022-05-31 16:28 +0100
Re: Reading the dimensions of a sprite or JPEG on disk News <chrisjohnson@spamcop.net> - 2022-05-31 16:51 +0100
Re: Reading the dimensions of a sprite or JPEG on disk Paul Sprangers <Paul@sprie.nl> - 2022-05-31 18:33 +0200
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