MFC DLL - ExitInstance hang on WaitForSingleObject

Similar Threads:

1.Releasing a pointer in ExitInstance in a MFC DLL results in an Access Violation

Hello,

I am trying to write a statically linked MFC regular DLL that uses a COM
object. In ExitInstance of this DLL, when I try to release the interface
pointer of the COM object, the DLL gives an access violation. I am testing
the DLL in a statically linked MFC dialog based executable. The development
platform is VS.NET 2003.

Here are the steps:

// MFC DLL

BOOL CCrashTestApp::InitInstance()
{
 CWinApp::InitInstance();

 ::CoInitialize (0);
 HRESULT hr = ::CoCreateInstance (CLSID_XMLDocument, NULL,
CLSCTX_INPROC_SERVER,
  IID_IUnknown, reinterpret_cast <void**> (&m_pUnk));

 return TRUE;
}

int CCrashTestApp::ExitInstance()
{
 m_pUnk->Release ();
 ::CoUninitialize ();

 return CWinApp::ExitInstance();
}

extern "C" __declspec (dllexport) bool __stdcall SayHello ()
{
 ::AfxMessageBox ("Hello", 0, 0);
 return 0;
}

// MFC Test EXE

extern "C" __declspec (dllimport) bool __stdcall SayHello ();

void CCrashTestTestDlg::OnBnClickedButton2()
{
 SayHello ();
}

Now run and close the test executable. You will get an access violation.
This only happens in ExitInstance. If I write two functions Init and Exit to
create and release the interface pointer then everything works. But, I don't
want to provide extra functions.

Please help.

Thanks in advance.

Regards,
Sachin Sharma

2.MFC ActiveX: ExitInstance is only called in debugger

I created a MFC-based ActiveX control. Now, when the browser is closed, I 
want to perform some initialization task in method 'ExitInstance'. This 
works, but only in debugging mode. Otherwise, this method is not called at 
all, when the browser is closed.
What's the reason? Whats the right MFC-method in order to initialize the 
control?

Thanks and regards,
Thomas

3.how to properly initialize an MFC Ext Dll in another MFC Ext Dll

how to properly initialize an MFC Ext Dll in another MFC Ext Dll.

if i just put them together i get a duplicate symbol for DllMain.

should i then remove the DllMain and move the Init/UnInit Code to somewhere else....

thanks

4.Linking a Non MFC dll to a MFC dll

Hi,

I have a non-mfc dll (user.dll).  I need to link it with another
application that accepts input.  I decided to use a MFC dialog box for
that purpose (MyDLL).  I tested the functioning of the MyDll from a
MFC exe application (TestDll).  But when I try to link it to the
non-mfc dll (ie user.dll) the following errors are generated:

-------------------------
F:\xyz\MyDll\MyClass.h(16): error C2146: syntax error : missing ';'
before identifier 'SayHello'
F:\xyz\MyDll\MyClass.h(16): error C2071: 'CMyClass::CString' : illegal
storage class
F:\xyz\MyDll\MyClass.h(16): error C2501: 'CMyClass::CString' : missing
storage-class or type specifiers
F:\xyz\MyDll\MyClass.h(16): error C2061: syntax error : identifier
'CString'
----------------------------

I included the .lib file and header file of MyDll  (i.e MyClass.h) in
the user.dll project. I also declared an object of the dialog class
(CMyClass) in the user.dll.

My problem is in linking the non-mfc dll with mfc dll. The linker does
not recognise any of the MFC classes, CString etc. What lib/files am I
supposed to include and where?

Another question in case there is no solution to the above problem. 
Can I build a non-mfc dll that creates a dialog box and also generates
a .lib file?  I see that except the static link library project, no
other project (win app, console app, dll) generates a .lib file.  How
do I create a .lib file for dll's so that I can link it with the
non-mfc dll?  I read about .def files etc. Can somebody point some
links where I can get examples of converting dlls to .lib?


Thank you very much.   Urgent reply requested.

mp

5.Returning values from mfc-dll to non-mfc dll

Hi,

I am new to mfc and dll.

I have a non-mfc dll that calls a mfc dll.  The mfc dll opens a dialog
box.  I have done this by

1. writing another func (LaunchDialog()) that does not return
mfc-resources or use mfc-rsources as parameteres in the mfc dll
2. CAll LaunchDialog() from the non-mfc dll by including all required
header and lib files.


extern "C" __declspec( dllexport ) int LaunchDialog()
   {
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    InputDialog indlg;

    return indlg.DoModal();
   }

The problem
--------------
I actually need to pass the value of the text input in the dialog box
back to the calling non-mfc dll.  I am sure there is a documented
method, can any one please tell me how to do it?  Sample code or
pointers to web sites?

Thank you very much.

6. MFC .NET interop problem - Application Hangs

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8. ATL Composite Control hangs in MFC