using ATL7.0 instead of ATL3, I'm missing something but what?

seriema

Hello! I've implemented IShellExtInit and IContextMenu and followed the Complete Idiots guide by Michael Dunn. But I'm using ATL7.0 and some stuff is different. Like the CComModule has been replaced. From MSDN: "As of ATL 7.0, CComModule is obsolete: see ATL Module Classes for more details." The wizard in VS.NET 2003 implemented CAtlDllModuleT. Everything compiles, but my class (T2TContextMenu) isn't called (I have set up breakpoints in all functions). I've checked the registry and my key is there: HKEY_CLASSES_ROOT\.omfg\ShellEx\ContextMenuHandlers\This2That default value = "{3E670573-EA3F-498A-8EB1-F72DA6B5D221}" as a string The only difference I can see between my code and the tutorial is in the DllMain(). The tutorial calls _Module.Init(ObjectMap, hInstance, &LIBID_SIMPLEEXTLib); and has a Object map that includes the COM class the DLL is going to use. Mine doesn't. So my guess is that I have to pass the CLSID and maybe my classname somewhere to CAtlDllModuleT. MSDN gave me this: "Init and Term methods have moved into the constructors and destructors for the module classes; there is no longer a need to call Init and Term." VS.NET created CThis2That like this:

class CThis2ThatModule : public CAtlDllModuleT< CThis2ThatModule >
{
public :
DECLARE_LIBID(LIBID_This2ThatLib)
DECLARE_REGISTRY_APPID_RESOURCEID(IDR_THIS2THAT, "{3E670573-EA3F-498A-8EB1-F72DA6B5D221}")
};

And CT2TContextMenu like this (I added the IShellExtInit/IContextMenu stuff):

class ATL_NO_VTABLE CT2TContextMenu :
public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CT2TContextMenu, &CLSID_T2TContextMenu>,
public IDispatchImpl<IT2TContextMenu, &IID_IT2TContextMenu, &LIBID_This2ThatLib, /*wMajor =*/ 1, /*wMinor =*/ 0>,
public IShellExtInit,
public IContextMenu
{
public:
CT2TContextMenu(){}

DECLARE_REGISTRY_RESOURCEID(IDR_T2TCONTEXTMENU)

DECLARE_PROTECT_FINAL_CONSTRUCT()

BEGIN_COM_MAP(CT2TContextMenu)
COM_INTERFACE_ENTRY(IT2TContextMenu)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(IShellExtInit)
COM_INTERFACE_ENTRY(IContextMenu)
END_COM_MAP()

HRESULT FinalConstruct(){ return S\_OK; }
void FinalRelease() {}

public:
// IShellExtInit
STDMETHOD(Initialize)(LPCITEMIDLIST, LPDATAOBJECT, HKEY);

// IContextMenu
STDMETHOD(GetCommandString)(UINT, UINT, UINT\*, LPSTR, UINT);
STDMETHOD(InvokeCommand)(LPCMINVOKECOMMANDINFO);
STDMETHOD

Robert Bielik

Hmmm... do you have an instance in your module of CThis2That ? I.e. like: CThis2That myModuleThingyStuff; I think you need it because then the constructor/destructor of it will be called when the DLL is loaded (and _Module.Init()/ .Term() will also be called). Hope that helps, /Rob

seriema

Yes, VS.NET created that for me. There's a global CThis2ThatModule _AtlModule; Init() is completely gone according to MSDN and is "replaced" by the constructor. While Term() is still there it's called by the destructor. What I don't know how to do is how I should pass my CT2TContextMenu so CThis2ThatModule will register it or whatever it's called. When the Init() function was available in ATL3.0 there was a object map and that was passed to _TheGlobalModule.Init(), this is where my CT2TContextMenu would've been passed. But I don't know how to do it in ATL7.0...

seriema

The tutorial had this:

BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_SimpleShlExt, CSimpleShlExt)
END_OBJECT_MAP()

// DllMain(), a bunch of stuff and:
_Module.Init(ObjectMap, hInstance, &LIBID_SIMPLEEXTLib); // Where _Module is a CComModule

What I found out from MSDN is that that type of object map has been replaced by OBJECT_ENTRY_AUTO and inspecting my code VS.NET had already generated this for me: OBJECT_ENTRY_AUTO(__uuidof(T2TContextMenu), CT2TContextMenu) What I've understood that means that the main module object does has some kind of reference to my context menu. But why isn't it called?