Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.acorn.programmer > #924

Re: FontV information

Show all headers | View raw

In message <e8df8230-2cb9-4857-94bc-b81c6b757f44@r2g2000vbj.googlegrou 
ps.com>
          wpb <w.blatchley@yahoo.com> wrote:

> On Oct 24, 7:14 pm, Martin Wuerthner <spamt...@mw-software.com> wrote:
>> In message <64f80047-9db1-48f1-8d06-7397d55ff...@v8g2000vbe.googlegrou
>> ps.com>
>>           wpb <w.blatch...@yahoo.com> wrote:
>>
>>> Can anyone point me to where FontV is decribed in documentation? I've
>>> tried the PRMs and StrongHelp, but can't find anything. The ROOL wiki
>>> also has nothing on this. Any pointers much appreciated.
>>
>> If there was such a thing as FontV in RISC OS it would presumably
>> vector the Font SWIs, in the same way as SpriteV vectors the Sprite
>> SWIs. There is a number reserved for FontV (0x25), but I am not aware
>> of any RISC OS version that actually uses it to vector the Font SWIs.
> Vectoring the Font Manager SWIs is what I was hoping for, yes. Looks
> like that's not possible...

Yes. It is unclear to me why Sprite and Draw calls are vectored, but 
Font calls are not. Makes the whole printer driver mechanism rather 
more complicated than necessary. The effort that was put into the 
FontSWI mechanism that printer drivers use to intercept Font calls 
(requiring the active co-operation of the FontManager, which is not 
good design) would have been better spent on implementing the FontV 
vector.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

Back to comp.sys.acorn.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

FontV information wpb <w.blatchley@yahoo.com> - 2011-10-24 06:05 -0700
  Re: FontV information Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-24 19:14 +0200
    Re: FontV information wpb <w.blatchley@yahoo.com> - 2011-10-24 10:31 -0700
      Re: FontV information Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-25 10:23 +0200
        Re: FontV information John Tytgat <this@is.invalid> - 2011-10-25 14:12 +0200
          Re: FontV information Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-26 13:01 +0200
            Re: FontV information druck <news@druck.org.uk> - 2011-10-27 11:08 +0100
              Re: FontV information wpb <w.blatchley@yahoo.com> - 2011-10-31 00:53 -0700
                Re: FontV information John Tytgat <this@is.invalid> - 2011-10-31 11:51 +0100
                Re: FontV information Martin Wuerthner <spamtrap@mw-software.com> - 2011-10-31 12:01 +0100
                Re: FontV information wpb <w.blatchley@yahoo.com> - 2011-11-07 07:53 -0800

csiph-web