How to use IVsFontAndColorEvents interface?

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Dmitry Shaporenkov - 02 Dec 2005 13:38 GMT

Hi,

in my package I need to get notified of changes made by user to the font
and color settings of various display items
via Tools|Options|Environment|Fonts and Colors dialog. I've found an interface
IVsFontAndColorEvents that seemingly
enables that, and IVsFontAndColorStorage that can be used to get the current
settings. However, I completely miss
how can I advise an object implementing IVsFontAndColorEvents to the event
source and what is that event source?
It seems there are no any methods receiving IVsFontAndColorEvents as a parameter,
and IVsFontAndColorStorage doesn't
allow to connect this interface via COM connection points (in managed code,
the following lines throw InvalidCastException):

IVsFontAndColorStorage storage = (IVsFontAndColorStorage)GetService(typeof(SVsFontAndColorStorage),
typeof(IVsFontAndColorStorage));
myFontAndColorEventsCookie = new NativeMethods.ConnectionPointCookie(storage,
this, typeof(IVsFontAndColorEvents));

What should I do in order to connect to events?

Thanks in advance.

Regards,
Dmitry Shaporenkov
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

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"Gary Chang[MSFT]" - 03 Dec 2005 09:10 GMT

Hi Dmitry,

Currently we are looking into this problem. We will reply here with more
information as soon as possible.
If you have any more concerns on it, please feel free to post here.

Thanks for your understanding!

Best regards,

Gary Chang
Microsoft Community Support
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Dmitry Shaporenkov - 03 Dec 2005 12:20 GMT

Hello Gary,

thank for your reply! I'm eagerly waiting for your further recommendations.

By the way, you wished me a nice weekend in another thread - but it looks
that you're
spending your weekend at work. Or may be it's just a time difference...

Regards,
Dmitry Shaporenkov
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

> Hi Dmitry,
>
[quoted text clipped - 16 lines]
> This posting is provided "AS IS" with no warranties, and confers no
> rights.

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Ed Dore [MSFT] - 04 Dec 2005 02:33 GMT

Hi Dmitry,

If memory serves, I just derived the class that implements
IVsFontAndColorDefauts, from IVsFontAndColorEvents as well. I did this a
while back with a C++ package targeting VS 2003. My coworker found a bug in
my package that causes a recusive interface call on VS2005. I'll try to dig
that sample up on Monday and send you the fixed version.

The .IDL file that defines the interface does make mention of
IConnectionPointContainer, so I'll double check the sources on this as well.

Sincerely,
Ed Dore [MSFT]

This post is 'AS IS' with no warranties, and confers no rights.

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Dmitry Shaporenkov - 05 Dec 2005 07:12 GMT

Hello Ed,

thank you, as usually :). I'll be waiting for your sample. I've also derived
my class
from IVsFontAndColorDefauts and IVsFontAndColorEvents, but I cannot find
how to connect
ir - as I said in the original post, IVsFontAndColorStorage doesn't seem
to expose IConnectionPointContainer
(or I may be doing something wrong, though I have no idea what it could be).

Regards,
Dmitry Shaporenkov
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

> Hi Dmitry,
>
[quoted text clipped - 12 lines]
> Ed Dore [MSFT]
> This post is 'AS IS' with no warranties, and confers no rights.

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"Ed Dore [MSFT]" - 05 Dec 2005 23:54 GMT

Hi Dmitry,

It appears that the documentation is in error here. I did a quick check
through the IDE sources and it appears that the IVsFontAndColorEvents
interface does need to be implemented on the object that also is
implementing IVsFontAndColorDefaults.

In particular, the shell retrieves your IVsFontAndColorDefaults and then
QI's for IVsFontAndColorEvents. If it find this interface, it's stored and
used. Consquently, you need to implement this on the same object that's
implementing your IVsFontAndColorDefaults interface.

I haven't tried proffer'ing a custom IVsFontAndColorDefaultsProvider
service from a managed package as of yet. But you do need to ensure that
the service is registered both unser the Services registry key as well as
the FontsAndColors registry key. I don't have a lot of spare time this
week, due to the ongoing VSIP developer lab, but I'll see if I can create a
new C# based implementation of my original 2003 package and get it out to
you.

Sincerely,
Ed Dore [MSFT]

This post is 'AS IS' with no warranties, and confers no rights.

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Dmitry Shaporenkov - 06 Dec 2005 05:31 GMT

Hello Ed,

thanks for your investigation. As far as I understand,
I need to proffer a service that implements IVsFontAndColorDefaultsProvider,
IVsFontAndColorDefaults and IVsFontAndColorEvents and register this
service appropriately. I'll try to do that and notify you if I have a success.

Regards,
Dmitry Shaporenkov
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

> Hi Dmitry,
>
[quoted text clipped - 19 lines]
> Ed Dore [MSFT]
> This post is 'AS IS' with no warranties, and confers no rights.

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How to use IVsFontAndColorEvents interface?

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