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Q252297: BUG: Calling GetPageInfo Can Give Unhandled Exception

Article: Q252297
Product(s): Microsoft C Compiler
Version(s): 6.0
Operating System(s): 
Keyword(s): kbActiveX kbATL kbCOMt kbMFC kbPropSheet kbVBp600bug kbDSupport kbGrpDSMFCATL kbArchite
Last Modified: 26-DEC-2001

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The information in this article applies to:

- Microsoft Visual Basic Professional Edition for Windows, version 6.0 
- Microsoft Visual Basic Standard Edition for Windows, version 6.0 
- Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0 
- Microsoft Visual C++, 32-bit Professional Edition, version 6.0 
- Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
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SYMPTOMS
========

If you call IPropertyPage::GetPageInfo on any of the stock property pages
(CLSID_StockColorPage, CLSID_StockFontPage, or CLSID_StockPicturePage) exported
from MsStkPrp.dll, you may receive an unhandled exception.

RESOLUTION
==========

Work around this problem by setting the property page site; call
IPropertyPage::SetPageSite, and pass a pointer to an implementation of
IPropertyPageSite immediately after using the CoCreate function of the property
page object or anytime before you call GetPageInfo.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

MORE INFORMATION
================

You may encounter this problem if you are developing your own custom property
frames and fail to site the property page object properly.

Steps to Reproduce Behavior
---------------------------

If you have code similar to the following in your component, you receive the
error described in the "Symptoms" section.

  	HRESULT hr;
  	CAUUID pages;
  	CComPtr<IPropertyPage> pPropertyPage;

  	CComPtr<ISpecifyPropertyPages> pStockPage;
  	hr = this->QueryInterface(IID_ISpecifyPropertyPages, (void **)&pStockPage);

  	if (SUCCEEDED(hr))
  		hr = pStockPage->GetPages(&pages);

  	if (SUCCEEDED(hr))
  		hr = ::CoCreateInstance(pages.pElems[0], NULL, CLSCTX_ALL , IID_IPropertyPage, (void **)&pPropertyPage);

  	if (SUCCEEDED(hr))
  	{
  		PROPPAGEINFO pageInfo;
  		memset(&pageInfo, 0, sizeof(PROPPAGEINFO));
  		pageInfo.cb = sizeof(PROPPAGEINFO);
  		
  		// Will give unhandled exception here....
  		hr = pPropertyPage->GetPageInfo(&pageInfo);
  		if (SUCCEEDED(hr))
  		{
  			// Do something.
  		}
  	}

REFERENCES
==========

- OleCreatePropertyFrame

- OleCreatePropertyFrameIndirect

- IPropertyPage

- IPropertyPageSite

- ISpecifyPropertyPages

- IPerPropertyBrowsing

Additional query words: custom OleCreatePropertyFrame OleCreatePropertyFrameIndirect IPerPropertyBrowsing

======================================================================
Keywords          : kbActiveX kbATL kbCOMt kbMFC kbPropSheet kbVBp600bug kbDSupport kbGrpDSMFCATL kbArchitecture 
Technology        : kbVCsearch kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVB600 kbVC600 kbVC32bitSearch
Version           : :6.0
Issue type        : kbbug
Solution Type     : kbpending

=============================================================================

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