Embedding Shdocvw zaps performance. Are there managed replacements?

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Jason Thomas - 29 Jan 2004 15:51 GMT

I'm currently re-writing the GUI of my application to improve speed,
reduce memory consumption and startup time, and make it prettier. I
currently embed msie to show a basic informational page. But this
takes 9 meg of RAM and about 3 seconds to instantiate. This is
unacceptable. I need to dump shdocvw.

Does anyone know of a managed basic html / xhtml rendering engine? It
don't need scripting, I wouldn't mind, but don't need CSS. I don't
need to interact with the object model.

And yes, I'm also optimizing other components as well, but must get
over this hump too.

Thanks in advance.

-
Jason

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Nat - 30 Jan 2004 03:20 GMT

Are you using mshtml.dll? If so, it might be worthwhile to use latebinding
instead.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q305622

If it doesn't help, try this instead
http://www.iol.ie/~locka/mozilla/mozilla.htm

Nat

> I'm currently re-writing the GUI of my application to improve speed,
> reduce memory consumption and startup time, and make it prettier. I
[quoted text clipped - 13 lines]
> -
> Jason

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Jason Thomas - 02 Feb 2004 04:44 GMT

No. mshtml was way too big. I implemented DWebBrowserEvents so that
I could get click events, but I don't even need that anymore. I guess
that I could be open to an active-x component, but would definatly
prefer managed code and am looking for something small, say < 100k on
disk so that I don't bloat my install package. I know 100K isn't that
much, but I don't need much functionality either. And yes, as you can
see, I'm picky.

-
Jason

> Are you using mshtml.dll? If so, it might be worthwhile to use latebinding
> instead.
[quoted text clipped - 22 lines]
> > -
> > Jason

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Joel Lucsy - 03 Feb 2004 15:46 GMT

Try http://terrainformatica.com/htmlayout/index.htm

> I'm currently re-writing the GUI of my application to improve speed,
> reduce memory consumption and startup time, and make it prettier. I
> currently embed msie to show a basic informational page. But this
> takes 9 meg of RAM and about 3 seconds to instantiate. This is
> unacceptable. I need to dump shdocvw.

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Stefano \ - 04 Feb 2004 09:21 GMT

> Try http://terrainformatica.com/htmlayout/index.htm

Cool! Very nice. I think I am going to try this. The samples I downloaded
show only one problem (I haven't had time to investigate if it can be solved
with the SDK provided): one cannot use the arrow keys to scroll pages larger
than the window's area.

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WildHeart'2k4

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Andrew Fedoniouk - 15 Feb 2004 23:49 GMT

> one cannot use the arrow keys to scroll pages.

Hi, Stefano!
You can send WM_VSCROLL(THUMBPOSITION) while handling e.g.
WM_KEYDOWN(PAGE UP/DOWN) to scroll it.

In the next version of HTMLayout (renamed to HTMEngine = HTMLayout +
HTMEditor) there is also function named ScrollToView(RECT) to scroll
e.g. to control gaining focus.

HTMEngine is also lightweight HTML WYSIWYG editor - replacement for
RichText. Formatted text, tables, images, CF_HTML support.

Andrew.

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Embedding Shdocvw zaps performance. Are there managed replacements?

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