Closed
Bug 149926
Opened 23 years ago
Closed 23 years ago
ActiveX control will crash on Visible property change
Categories
(Core Graveyard :: Embedding: ActiveX Wrapper, defect)
Tracking
(Not tracked)
RESOLVED
WORKSFORME
People
(Reporter: hardrequest, Assigned: adamlock)
Details
(Keywords: crash, stackwanted)
Attachments
(3 files)
When the control has a page loaded and the Visible property is set to False,
then to True, the control will lockup and the following error message displays:
Run-time error '-2147417848 (80010108)':
Method 'Visible' of object 'IWebBrowser2' failed
This is both in the VB IDE and compiled.
Comment 1•23 years ago
|
||
Reporter: Could you specify your Mozilla build ID and provide TalkBack incident ID?
Severity: normal → critical
Keywords: crash,
stackwanted
Reporter | ||
Comment 2•23 years ago
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Mozilla Build ID: 2002053012
I don't have a TalkBack ID; the error was displayed in a messagebox.
This is a weird one. I don't actually implement Visible at all in the control,
but I wrote a test VB app and setting Visible does toggle the control on and off.
Therefore something else is implementing the window hiding and showing. I think
this something is VB itself.
For example if I do this:
Dim i as IWebBrowser2
Set i = MozillaBrowser1
i.Visible = Not i.Visible
The effect should be nothing at all since I don't implement Visible. But it does
toggle.
The error 80010108 means "The object invoked has disconnected from its clients.
". The control is definitely not sending this, so again I reckon VB is messing
around with marshaling or something which is putting some kind of proxy in the
middle.
What version of VB is this?
Reporter | ||
Comment 4•23 years ago
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This is using Visual Basic 6.
It only gives the error if a page is loaded into the control. And you are
correct... Visual Basic adds a few properties, including Visible. You should
be able to fix this by adding your own Visible property. Doing so would force
VB to use your property instead of whatever VB does.
I tested with VB 6 and I had a page loaded and I couldn't reproduce the issue.
Is it a particular page or any page?
I'll attach my sample form.
The IWebBrowserApp interface has a Visible property, but my impl does nothing
except return S_OK, which is what I meant when I said I don't implement it.
I have no idea why VB isn't using my impl and choosing to use its own.
This is a sample test app. Works for me in VB 6 Service Pack 5
Reporter | ||
Comment 10•23 years ago
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Hmm... well, the test app you posted does the same thing (locks up and crashes
VB). I'm also using VB 6 with service pack 5, and it doesn't matter what page
is loaded.
I can't think of what could be causing this, but a simple workaround is to
leave the control visible. I can live with that.
Assignee | ||
Comment 11•23 years ago
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I'll mark this WORKSFORME.
Status: UNCONFIRMED → RESOLVED
Closed: 23 years ago
Resolution: --- → WORKSFORME
Updated•13 years ago
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Product: Core → Core Graveyard
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Description
•