RetroBBS - comp.sys.acorn.programmer - Font_ScanString, icon widths not sticking

Font_ScanString, icon widths not sticking

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From: cself@btinternet.com (Christopher Self)
Newsgroups: comp.sys.acorn.programmer
Subject: Font_ScanString, icon widths not sticking
Date: Sat, 02 Jul 2022 15:06:58 +0100
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by: Christopher Self - Sat, 2 Jul 2022 14:06 UTC

Can someone tell what's wrong with this, please:

bbox!0 = 0
bbox!4 = 0
bbox!8 = 0
bbox!12 = 0
bbox!16 = -1
SYS "Font_ScanString", 0, text$, &40020, 3000*400, 2500*400, bbox
=bbox!28 / 400

Or this:

SYS "Font_ScanString", 0, text$, 0, 2500*400, 2000*400 TO ,,,width%
=width% / 400

The icon widths are correct at first, with either method, but then break
down and are shortened, seemingly randomly, when the icons are moved.

--
Christopher Self

Re: Font_ScanString, icon widths not sticking

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Subject: Re: Font_ScanString, icon widths not sticking
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by: svrsig - Fri, 21 Oct 2022 08:35 UTC

Staff meeting in the conference room in 3 minutes.

devel / comp.sys.acorn.programmer / Font_ScanString, icon widths not sticking

Subject	Author
Font_ScanString, icon widths not sticking	Christopher Self
Re: Font_ScanString, icon widths not sticking	svrsig