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Re: RichEdit control question

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Kalkidas <eat@joes.pub> schrieb im Beitrag <j7k2n1$492$1@dont-email.me>...
> OTOH MSWord and WordViewer apparently do have the ability to tell if 
> something is "formerly hidden", since they will toggle hidden text off 
> and on....

They just have an internal flag "Show hidden text". If this flag is set,
hidden text gets rendered to the output device like 'normal' text; if it is
not set, hidden text gets not rendered to the output device - it's just
such simple. That's the reason, why toggling "Show hidden text" is so
'fast', because no data has to be changed, only the output on the device
has to be re-rendered, which - since it's usually the screen - isn't very
much to do.

> I'll just have to keep looking. Maybe I will have to simply do 
> search/replace of rtf tags. But it takes a long time....

No. There are two approaches for you to speed things up:

a) Write your own routine to render the contents of the control used to the
output device.

b) Change the hidden flag of the contents of the control - but change it
only for that section of the contents which is currently visible!
A rough sketch:
- Get the visible section of the contents of the control
- Change the hidden text property of the text parts in this section of the
contents which have this property set, and save information about the
changes made.
- Let the control redraw its contents to the output device (e.g. Refresh)

Before any action takes place which may change the contents of the control
of course you have to restore the original property values from the
information saved before.

-- 
Thorsten Albers

gudea  at  gmx.de

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RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-10 14:41 -0700
  Re: RichEdit control question "Nobody" <nobody@nobody.com> - 2011-10-11 00:53 -0400
  Re: RichEdit control question BTIS Jeff <btisjb@gmail.com> - 2011-10-11 08:17 -0700
    Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-11 14:17 -0700
      Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-11 22:27 +0100
        Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-11 14:59 -0700
          Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-12 08:00 +0100
            Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-12 16:18 -0700
              Re: RichEdit control question Deanna Earley <dee.earley@icode.co.uk> - 2011-10-13 08:45 +0100
              Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-13 10:24 +0100
              Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-13 11:41 +0100
              Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-13 13:30 +0100
  Re: RichEdit control question Eric Coleman <eric@strategon.com> - 2011-10-13 19:55 -0500
    Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-14 09:30 +0100
    Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-15 07:53 -0700
      Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-15 17:03 +0100
      Re: RichEdit control question ralph <nt_consulting64@yahoo.net> - 2011-10-15 12:25 -0500
        Re: RichEdit control question ralph <nt_consulting64@yahoo.net> - 2011-10-15 12:29 -0500
        Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-15 12:45 -0700
          Re: RichEdit control question ralph <nt_consulting64@yahoo.net> - 2011-10-15 15:24 -0500
          Re: RichEdit control question "Thorsten Albers" <gudea@gmx.de> - 2011-10-15 23:16 +0000
            Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-16 18:21 -0700
              Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-16 23:15 -0400
              Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-17 17:19 -0400
                Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-17 15:59 -0700
                Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-17 19:59 -0400
                Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-17 17:34 -0700
                Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-17 23:46 -0400
                Re: RichEdit control question Kalkidas <eat@joes.pub> - 2011-10-18 07:35 -0700
                Re: RichEdit control question "Thorsten Albers" <gudea@gmx.de> - 2011-10-18 15:17 +0000
                Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-19 10:09 -0400
                Re: RichEdit control question "Mike Williams" <Mike@WhiskyAndCoke.com> - 2011-10-19 18:26 +0100
          Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-15 19:53 -0400
            Re: RichEdit control question "Thorsten Albers" <gudea@gmx.de> - 2011-10-16 03:32 +0000
              Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-16 12:02 -0400
                Re: RichEdit control question "Thorsten Albers" <gudea@gmx.de> - 2011-10-16 22:10 +0000
                Re: RichEdit control question "Mayayana" <mayayana@invalid.nospam> - 2011-10-16 19:17 -0400
                Re: RichEdit control question "Thorsten Albers" <gudea@gmx.de> - 2011-10-17 09:43 +0000

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