Call AfxSetResourceHandle in DLL without affecting main application's resources

[Norby mahoney]

I have an MFC application. It loads a DLL (DLL1). DLL1 in turn loads DLL2. DLL2 is used by DLL1 for resources. The problem is when I load DLL2 in DLL1, and call AfxSetResourceHandle(), this causes the resources in the application itself to be reset aswell.

How can I load resources into a DLL without affecting the resources of the application that loaded it? Both DLLs are MFC Extention DLLs.

[Roger Allen]

HINSTANCE hOld = AfxGetResourceHandle();
AfxSetResourceHandle(dllInstance);

// get your required resources
AfxSetResourceHandle(hOld);

[Norby mahoney]

The resource I need to load is a dialog that needs to be loaded up at the time DLL1 is initially loaded. I think what I'm trying to do is not possible; I guess there is one resource handle shared amoung a process (e.g an MFC App and a chain of DLLs all will use the same resource handle ).

If I'm wrong, please correct me.

[Roger Allen]

A typical MFC extension DLL has this present:

static AFX_EXTENSION_MODULE MyDLL = { NULL, NULL };

        // Insert this DLL into the resource chain
        // NOTE: If this Extension DLL is being implicitly linked to by
        //  an MFC Regular DLL (such as an ActiveX Control)
        //  instead of an MFC application, then you will want to
        //  remove this line from DllMain and put it in a separate
        //  function exported from this Extension DLL.  The Regular DLL
        //  that uses this Extension DLL should then explicitly call that
        //  function to initialize this Extension DLL.  Otherwise,
        //  the CDynLinkLibrary object will not be attached to the
        //  Regular DLL's resource chain, and serious problems will
        //  result.
        
        new CDynLinkLibrary(MyDLL);

So you may be able to do it by duplicating this functionality.