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Boni - 25 Aug 2005 11:15 GMT

Dear all,
what do I have to implement, in order to standard UnDo/Redo buttons goes
enabled, when my toolwindow is active? I can't find any example.Do I have to
make workaround and place an editor on my toolwindow and disable it's
visibility? Any easier solution?
Thank you,
Boni

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Carlos J. Quintero [VB MVP] - 29 Aug 2005 14:52 GMT

When your toolwindow is active, you can manage it with DTE.UndoContext.Open,
performing your action(s) and calling Close. The Undo buttons are enabled
automatically.

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Best regards,

Carlos J. Quintero

MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
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> Dear all,
> what do I have to implement, in order to standard UnDo/Redo buttons goes
[quoted text clipped - 3 lines]
> Thank you,
> Boni

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Boni - 30 Aug 2005 00:22 GMT

Dear Carlos,
You are saveing my life:). I placed DTE.UndoContext.Open in
GotFocusEventHandler of my window and made sure that it is really called.
Unfortunately the undo button stays disabled. As I understand I have to
place some undo actions into VS undo stack in order button goes enabled? How
would I do that? Is it documented somewhere? So far the only source of
information on UnDo, which I could find, is your great advices.
With big thanks,
Boni

> When your toolwindow is active, you can manage it with
> DTE.UndoContext.Open, performing your action(s) and calling Close. The
[quoted text clipped - 7 lines]
>> Thank you,
>> Boni

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Boni - 30 Aug 2005 10:14 GMT

My problem is that my tool window is not related to any document. As far as
I understand the undo/redo actions must be in some relationship with a
document. But it is not my case.
Just an example, to demonstrate the problem (it is not*real* example, just
very demonstrative and it has analogy to my problem). If you would place a
chess board on a tool windows and undo should undo last move how would you
do that? I don't know how to put "movement" actions in VS undo stack. Would
you somewhere in your program have alternative undo stack, and when undo
button pressed take actions from your stack? It is what I want to do. The
only problem, that the f+++ undo/redo buttons don't go enabled, they are
alwasy disabled when toolwindow active.
My next idea is to put a dummy invisible text buffer on a toolwindow (seems
to be a bit tricky from an addin) and then may be buttons go enabled, when I
change something in this buffer.But I also could not find an example how to
do that so far (seems that I will have to try/error).
With best wishes,
Boni

Any help is greatly appreciated.
Kindly yours,

> Dear Carlos,
> You are saveing my life:). I placed DTE.UndoContext.Open in
[quoted text clipped - 17 lines]
>>> Thank you,
>>> Boni

Reply to this Message

Paul Skelton - 30 Aug 2005 14:52 GMT

Also try taking a look at IOleUndoManager. You may be able to implement
your own undo manager for your tool window. Using IOleUndoManager from
managed packages (C# or VB) is not that intuitive but it's possible.

> My problem is that my tool window is not related to any document. As far
> as I understand the undo/redo actions must be in some relationship with a
[quoted text clipped - 37 lines]
>>>> Thank you,
>>>> Boni

Reply to this Message

Boni - 30 Aug 2005 15:52 GMT

Hi Paul,
first of all thanks for the advice.
When I implemented undo manager (seems to be quite easy
http://www.codeproject.com/atl/undomgr.asp) how do I "attach" it to the
toolwindow?
Thank you very much,
Boni

> Also try taking a look at IOleUndoManager. You may be able to implement
> your own undo manager for your tool window. Using IOleUndoManager from
[quoted text clipped - 42 lines]
>>>>> Thank you,
>>>>> Boni

Reply to this Message

Boni - 30 Aug 2005 20:57 GMT

Dear all,
My idea now is to get UndoManager from VS
Dim _sp As Microsoft.VisualStudio.OLE.Interop.IServiceProvider =
VSCDesignerEntryObjects.ApplicationObject

hr = _sp.QueryService(GetType(IOleUndoManager).GUID, GetType(????).GUID,
objPtr)

Debug.Assert(hr = 0, "Failed to get undomgr")

Dim UndMgr As IOleUndoManager =
DirectCast(System.Runtime.InteropServices.Marshal.GetObjectForIUnknown(resptr),
IOleUndoManager)

Then I could implement undounit and put it into undomanager.
Only problem that I need IID and SID of IOleUndoManager.
May be somebody of experts Garry, Carlos??? has an idea where to get it?
Am I on right way?
Thank you very much in advance,
Boni

> Hi Paul,
> first of all thanks for the advice.
[quoted text clipped - 51 lines]
>>>>>> Thank you,
>>>>>> Boni

Reply to this Message

Paul Skelton - 30 Aug 2005 23:14 GMT

Try this:

Guid undoManagerGuid = typeof(IOleUndoManager).GUID;

Guid undoManagerGuid2 = typeof(IOleUndoManager).GUID;

IntPtr undoManagerPtr = NullIntPtr;

int hr = m_serviceProvider.QueryService(ref undoManagerGuid2, ref
undoManagerGuid, out undoManagerPtr);

if ((hr == VSConstants.S_OK) && (undoManagerPtr != NullIntPtr))

{

m_undoManager =
(IOleUndoManager)Marshal.GetObjectForIUnknown(undoManagerPtr);

Marshal.Release(undoManagerPtr);

}

> Dear all,
> My idea now is to get UndoManager from VS
[quoted text clipped - 73 lines]
>>>>>>> Thank you,
>>>>>>> Boni

Reply to this Message

Boni - 31 Aug 2005 00:41 GMT

Hi Paul,
I already tried this.
return value of QueryService hr<>S_OK.
It seems, that other SID should be used.
Do you understand the architecture of VS undo? Do I have to implement
IOleUndoManager in my hostcontrol and VS will use it or is it a one global
UndoManager inVS and I have to request it somehow?
The main issue is that there is no docus (not in MSDN not on google)

> Try this:
>
[quoted text clipped - 96 lines]
>>>>>>>> Thank you,
>>>>>>>> Boni

Reply to this Message

Carlos J. Quintero [VB MVP] - 30 Aug 2005 10:22 GMT

Hi Boni,

Once you open an Undo Context calling DTE.UndoContext("My name"), all
actions in text documents such as EditPoint.Insert(), etc, are placed in a
single group in the undo stack until you call Close. Try first with a simple
add-in without windows, etc. until you get it, and then move back to your
actual scenario.

Signature

> Dear Carlos,
> You are saveing my life:). I placed DTE.UndoContext.Open in
[quoted text clipped - 5 lines]
> With big thanks,
> Boni

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