🚀 go-pugleaf

In article <1109601286.547140@news.liwest.at>, Roland Leisch wrote:
> Hello!
> 
> I have a very strange problem:
> 
> I try to change the active window (so change are applied to the right 
> window if several windows are open) and therefore I wrote a method which 
> searches for a special custom property and if it finds the needed one 
> this presentation is activated (at last it should be!). The problem now 
> is, that I cannont activate the presentations since Windows - Count is 0 
> and I get an exception.
> 
> Can anybody give me a hint where the problem could be? My main problem 
> is that I cant understand, why Windows collection can be 0 (I thought 
> that at least one window has to be opened)?
> 
> Im using a Java-COM bridge to integrate Powerpoint in an ole container 
> within my Java application.
> 
> Thanks in advance!
> 
> Source:
> ((_PresentationImpl) presentations.item(new 
> Variant(1))).getWindows().item(new Int(1)).activate();
> 
> I thought that this piece of code should work alsways since there has 
> always to be a least one presentation and one window but there is an 
> exception thrown in getWindows since count is zero?!?

Unless other code forces it, there doesn't have to be at least one 
presentation.  Might that be the problem?

--
Steve Rindsberg, PPT MVP
PPT FAQ:  www.pptfaq.com
PPTools:  www.pptools.com
================================================

> Unless other code forces it, there doesn't have to be at least one 
> presentation.  Might that be the problem?

Hello!

Thanks for yyour answer but Im sorry I didnt understand it. My Problem 
is that if I start 2 instances of my application (each one contains an 
ole container with and powerpoint presentation) only the last started 
instance reacts to any commands. So I want to activate the first 
instance to be able to exectue methods on this one.

So I wrote a method which identifies the right instance (ole container 
with presentation) and now I have to activate this one. But that doesnt 
work since Windows-Count is zero and I cant execute activate method!

Thanks in advance!

In article <1109661686.51153@news.liwest.at>, Roland Leisch wrote:
> > Unless other code forces it, there doesn't have to be at least one 
> > presentation.  Might that be the problem?
> 
> Hello!
> 
> Thanks for yyour answer but Im sorry I didnt understand it. 

Hi Roland, 

No worries.  I'm probably misunderstanding your question too. ;-)
But I was responding to this:

=========
Source:
((_PresentationImpl) presentations.item(new 
Variant(1))).getWindows().item(new Int(1)).activate();

I thought that this piece of code should work alsways since there has 
always to be a least one presentation and one window but there is an 
exception thrown in getWindows since count is zero?!?
============

I'm probably mistaken, but it looks like you're referencing 

Presentions.Item(some_number)

But if there are no presentations open, there can be no 
Presentations.Item(anything)




My Problem 
> is that if I start 2 instances of my application (each one contains an 
> ole container with and powerpoint presentation) only the last started 
> instance reacts to any commands. So I want to activate the first 
> instance to be able to exectue methods on this one.
> 
> So I wrote a method which identifies the right instance (ole container 
> with presentation) and now I have to activate this one. But that doesnt 
> work since Windows-Count is zero and I cant execute activate method!
> 
> Thanks in advance!
>




--
Steve Rindsberg, PPT MVP
PPT FAQ:  www.pptfaq.com
PPTools:  www.pptools.com
================================================

> I'm probably mistaken, but it looks like you're referencing 
> 
> Presentions.Item(some_number)
> 
> But if there are no presentations open, there can be no 
> Presentations.Item(anything)

Ok - now I understand what you mean! But I open a presentation 
programatically and it is displayed in the ole container and it is NOT 
closed - so I thought Windows-Count has alwayys to be at least 1 until I 
close the presentation. Nevertheless the Windows-Count is still zero.

The very strange thing is that this behavior only occours if I open a 
second ole contianer containing a powerpoint presentation. With only one 
ole container everything works fine!

In article <1110013549.787152@news.liwest.at>, Roland Leisch wrote:
> > I'm probably mistaken, but it looks like you're referencing 
> > 
> > Presentions.Item(some_number)
> > 
> > But if there are no presentations open, there can be no 
> > Presentations.Item(anything)
> 
> Ok - now I understand what you mean! But I open a presentation 
> programatically and it is displayed in the ole container and it is NOT 
> closed - so I thought Windows-Count has alwayys to be at least 1 until I 
> close the presentation. Nevertheless the Windows-Count is still zero.
> 
> The very strange thing is that this behavior only occours if I open a 
> second ole contianer containing a powerpoint presentation. With only one 
> ole container everything works fine!

Hmmm.  I've only played briefly with PPT shows in an OLE container, but a 
couple things strike me as worth looking at:

While the container isn't activated, there wouldn't be any instance of PPT, so 
any reference to a PPT object would throw an error.  That's probably obvious to 
you, so pardon my mentioning it.  ;-)

But another point:  PowerPoint is a single-instance application.  You can't 
have two copies of the same version running at once.  How that affects what 
happens to presentations in an OLE container, I don't know, but  .... who 
knows, maybe it's relevant?



--
Steve Rindsberg, PPT MVP
PPT FAQ:  www.pptfaq.com
PPTools:  www.pptools.com
================================================

  > While the container isn't activated, there wouldn't be any instance 
of PPT, so
> any reference to a PPT object would throw an error.  That's probably obvious to 
> you, so pardon my mentioning it.  ;-)

Hmm.. the strange thing is that Windows-Count first is 1 and only after 
I open a second instance of my application containing an ole container 
Windows-Count is 0.


> But another point:  PowerPoint is a single-instance application.  You can't 
> have two copies of the same version running at once.  How that affects what 
> happens to presentations in an OLE container, I don't know, but  .... who 
> knows, maybe it's relevant?

Only one instance of powerpoint.exe is in memory (at least taskmamager 
tells me that) and presentations-collection contains both presentations.

So everything is quite unclear!

> 
> So everything is quite unclear!
>

THAT certainly sums it up well. <g>

Here's hoping somebody else has an idea that'll help.  I'm fresh out.  

--
Steve Rindsberg, PPT MVP
PPT FAQ:  www.pptfaq.com
PPTools:  www.pptools.com
================================================

Hello!

I have posted the problem before but there were some misunderstanding so 
I will post again:

I have an application which uses an ole container to display an excel 
workbook. In my application I have a menubar in which I can change Zoom 
settings for the contained workbook (since I prohibited any interaction 
on the workbook itself as I want it only to be displayed and not be 
changed in any way).

If I start my application I can change the zoom settings without any 
problems.

But if a start my application a second time (with an other workbook) Im 
not able to change any settings in the first workbook (I can click on my 
entries but nothing happens).

So I tried to implement a workaround: I add custom document properties 
which allow me to identify the open workbooks. I iterate all workbooks 
and if I find the right workbook I call workbook.activate(lcid).

The very strange thing is that this works only if one instance of my 
application is open - if a second instance is running I get: COM object 
method returns error code: 0x800A03EC and only the last started instance 
reacts - the first instance gives me the 0x800A03EC error.

Has anybody here got an idea where the problem could be?

Thanks in advance!

Steve Rindsberg wrote:
>>So everything is quite unclear!
>>
> 
> 
> THAT certainly sums it up well. <g>
> 
> Here's hoping somebody else has an idea that'll help.  I'm fresh out.  
> 
> --
> Steve Rindsberg, PPT MVP
> PPT FAQ:  www.pptfaq.com
> PPTools:  www.pptools.com
> ================================================
> 


I found a workaround and until now it works:

Whenever I want to activate a file in an ole container I call 
OleContainer.doVerb(SHOW) and everything is fine!

> 
> I found a workaround and until now it works:
> 
> Whenever I want to activate a file in an ole container I call 
> OleContainer.doVerb(SHOW) and everything is fine!
>

Roland, thanks for posting back with that.  I'm sure it'll save somebody else 
hours of work later.  


--
Steve Rindsberg, PPT MVP
PPT FAQ:  www.pptfaq.com
PPTools:  www.pptools.com
================================================