Q128086

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page	Q128086: PRB: Failing to Initialize OLE Generates Out of Memory Error	/kb/128/Q128086/

Q128086: PRB: Failing to Initialize OLE Generates Out of Memory Error

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Article: Q128086
Product(s): Microsoft C Compiler
Version(s): winnt:2.0,2.1,4.0,4.1,5.0,6.0
Operating System(s): 
Keyword(s): kbole kbMFC kbVC150 kbVC151 kbVC152 kbVC200 kbVC210 kbVC400 kbVC500 kbVC600 kbVS600 kbG
Last Modified: 06-MAY-2001

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The information in this article applies to:

- The Microsoft Foundation Classes (MFC), used with:
   - Microsoft Visual C++ for Windows, 16-bit edition, versions 1.5, 1.51, 1.52 
   - Microsoft Visual C++, 32-bit Editions, versions 2.0, 2.1, 4.0, 4.1 
   - Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0 
   - Microsoft Visual C++, 32-bit Professional Edition, version 5.0 
   - 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 the OLE .DLL files are not initialized with a call to AfxOleInit(),
subsequent OLE calls will fail. For 32-bit MFC applications, debug output sent
to a debugging window may show these errors:

  Throwing exception of type COleException
  sCode = 0x8007000E E_OUTOFMEMORY

  - or -

  sCode = 0x80030008 STG_E_INSUFFICIENTMEMORY

For 16-bit MFC applications, debug output may show:

  Throwing exception of type COleException
  sCode = 0x80000002 E_OUTOFMEMORY

  - or -

  sCode = 0x80030008 STG_E_INSUFFICIENTMEMORY

RESOLUTION
==========

AfxOleInit() calls OleInitialize(LPMALLOC), which sets the task memory allocator
used by OLE. If this is not done, OLE cannot perform memory allocations and any
OLE calls will fail. Placing a call to AfxOleInit() in the InitInstance() of an
MFC application will fix this problem. The first few lines from the
InitInstance() of HIERSVR (MFC OLE sample provided with Visual C++) below, shows
the proper syntax for calling AfxOleInit().

Sample Code
-----------

     /* Compile options needed: standard MFC project
     */ 
     
     BOOL CServerApp::InitInstance()
     {
         // OLE 2.0 initialization
         if (!AfxOleInit())
         {
             AfxMessageBox(IDP_OLE_INIT_FAILED);
             return FALSE;
         }
     ... function continues ....

STATUS
======

This behavior is by design.

Additional query words:

======================================================================
Keywords          : kbole kbMFC kbVC150 kbVC151 kbVC152 kbVC200 kbVC210 kbVC400 kbVC500 kbVC600 kbVS600 kbGrpDSMFCATL 
Technology        : kbAudDeveloper kbMFC
Version           : winnt:2.0,2.1,4.0,4.1,5.0,6.0
Hardware          : x86
Issue type        : kbprb

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

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