DEBUGGING COM REGISTRO GRATUITO (C ++)

StackOverflow https://stackoverflow.com/questions/5018971

Pregunta

He construido una aplicación COM Client que utiliza dos DLL de servidor COM; Quiero que esta aplicación se ejecute sin el registro COM, es decir: WINSXS / .manifests

Obtengo un mensaje (...) "Casi ...)" Clase no registrada "Mensaje cuando intento crear una instancia de mi objeto COM de mi aplicación cliente.

Ya he logrado ese tipo de configuración antes, pero no puedo averiguar por qué este falla.

Aquí hay algunos detalles más:

  • los módulos que tengo:
    • un cliente MFC que depende de 2 servidores COM (dll1.dll y dll2.dll)
    • dll1.dll com servidor depende de dll2.dll
    • dll2.dll no tiene dependencia de com

      Los objetos COM que tengo:

      • en dll1.dll (Idioma.)

        - 

        [
    object,
    uuid(262D00FB-3B9F-4A76-98FC-3051FDCAF0A6),
    dual,
    nonextensible,
    helpstring("IDialogManager Interface"),
    pointer_default(unique)
]
interface IDialogManager : IDispatch{
};
[
        uuid(58562535-BCA5-4D04-BB92-78F90EDA201E),
        //...
]
dispinterface _IDialogManagerEvents
{
};
[
        uuid(D599D3F0-A4D1-44A7-87A9-16032CC613CA),
        //...
]
coclass DialogManager
{
        [default] interface IDialogManager;
        [default, source] dispinterface _IDialogManagerEvents;
};

        -

        • en dll2.dll

          - 

          [
    object,
    uuid(2A183A2E-A620-4E00-B657-C9D2E59201D4),
    nonextensible,
    helpstring("ICadWizardsManager Interface"),
    pointer_default(unique)
]
interface ICadWizardsManager : IDispatch{
};
[
    object,
    uuid(FE97F3FB-8930-43BC-947D-64C90F45A071),
    nonextensible,
    helpstring("ICadWizard Interface"),
    pointer_default(unique)
]
interface ICadWizard : IDispatch{
};
[
    uuid(5365D4E6-ADFB-4429-9DEA-C44CC94AA3EF),
]
dispinterface _ICadWizardEvents
{
};
[
    uuid(CAC2D0BF-AD5B-4CC8-A04D-53AB23A0CDF4),
]
coclass CadWizard
{
    [default] interface ICadWizard;
    [default, source] dispinterface _ICadWizardEvents;
};
[
    uuid(3164FAC4-6F5F-4E4D-9B09-DC4115850D78),
]
dispinterface _ICadWizardsManagerEvents
{
};
[
    uuid(707CB6C8-311E-45EC-9DCB-50477F588BAF),
]
coclass CadWizardsManager
{
    [default] interface ICadWizardsManager;
    [default, source] dispinterface _ICadWizardsManagerEvents;
};

          -

          • la llamada del cliente

            - 

            IDialogManagerPtr dialogManager;
dialogManager.CreateInstance(CLSID_DialogManager); // <<< returns "Class not registered"

            -

            • el cliente.exe.2.manifest

              - 

              <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">

<assemblyIdentity name="client" version="1.0.0.0" type="win32" processorArchitecture="x86"/>
<file name="dll2.dll">
 <comClass
     clsid="{707CB6C8-311E-45EC-9DCB-50477F588BAF}"
     threadingModel="apartment">
 </comClass>
 <comClass
     clsid="{CAC2D0BF-AD5B-4CC8-A04D-53AB23A0CDF4}"
     threadingModel="apartment">
 </comClass>
</file>

<file name="dll1.dll">
 <comClass
     clsid="{D599D3F0-A4D1-44A7-87A9-16032CC613CA}"
     threadingModel="apartment">
 </comClass>
</file>

</assembly>

              -

              No tengo ningún error durante la generación de contexto de activación de SXS: - No hay error en el registro de Windows (debe significar que mi sintaxis de manifiesto es correcta) - No se detectó ningún error por SxStrace (el registro finaliza con "Información: la generación de contexto de activación tuvo éxito". Mensaje y no contiene ningún error o un mensaje sucio; Además, veo que mi manifiesto se carga correctamente)

              ¿Alguna idea?

              ¿Hay alguna manera de depurar SXS más profundo que con SxStrace? Obtención de la lista de clases COM o CLR realmente registradas por ejemplo ???

              Gracias por adelantado

¿Fue útil?

Solución

There are usually - at least - two manifests involved when building the activation context for registration free COM.

There is the EXE manifest, that specifies its dependent assemblies, including the assembly containing the COM components, and there is the assembly manifest, describing the dll's, window classes, and COM objects in the assembly.

This Blog contains information about what the .2 means. Basically, when the system looks for a manifest, it looks for modulename.exe[.resid].manifest - In the case that resid is 1, it is omitted.

So, you are using MFC, which means DevStudio, which means that your project should already be configured to produce a RT_MANIFEST resource automatically with the c-runtime and common control 6 settings in it.

Visual Studio 2005 supports this syntax to merge dependentAssembly elements with your applications manifest without having to try and merge XML directly:

#pragma comment(linker, \
    "\"/manifestdependency:type='Win32' "\
    "name='client' "\
    "version='1.0.0.0' "\
    "processorArchitecture='*' "\
    "language='*'\"")

So, if you add that to a cpp or header in your .exe, and then save your client.exe.2.manifest as "client.manifest", you should be all systems go.

Otros consejos

The simple explanation is that the .manifest file isn't being used. Which is highly likely in this scenario, your .exe almost certainly already contains a manifest, embedded as a resource. Very common for a MFC app to enable visual styles. And for code compiled by the VS2005 or 2008 compilers which embeds a manifest to find the runtime DLLs.

To verify this, use File + Open + File and select the compiled .exe file. Look for the RT_MANIFEST node. If Windows finds such an embedded manifest it isn't going to continue looking for a file-based one. You need to merge your regfree COM entries into the embedded one. I wish I could give you a good MSDN Library link but the docs about manifests suck serious rock.

Licenciado bajo: CC-BY-SA con atribución
No afiliado a StackOverflow
scroll top