如何从64位应用程序连接到windows phone 7

Question

我有一个32位程序(用C++编写)，它可以连接到一些不同的设备，只要是32位，一切都可以正常工作。然而，现在我需要将其构建为64位程序，但后来我遇到了Windows 7的一些问题。

我发现重新构建为64位的dll (用C#编写)会在这一行抛出异常：

MultiTargetingConnectivity connectivity = new MultiTargetingConnectivity(CultureInfo.CurrentUICulture.LCID);

例外是：

An unhandled exception of type 'Microsoft.SmartDevice.Connectivity.DatastoreException' occurred in Microsoft.SmartDevice.Connectivity.dll

Additional information: Retrieving the COM class factory for component with CLSID {349AB2E8-71B6-4069-AD9C-1170849DA64C} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

(例如，如果我尝试运行this example program，它在32位中工作，但在同一行中抛出64位的异常)

当我在注册表中搜索那个CLSID时，我找到了一个通往"C:\Program (x86)\Common \Microsoft Shared\Phone Tools\CoreCon\11.0\Bin\ConMan2.dll“的路径，因此我可以找到registered that dll using regsvr32，但仍然得到相同的异常。

更新：

由于我可能需要创建一个解决方案，而不是找到一个64位版本的ConMan2.dll，所以我在这里发布了一些我当前的dll，如果有人可以向我展示一个可能的解决方案，那么它将在32位和64位中工作。

namespace WP7DLL
{
    // Interface declaration.
    [Guid("11111111-1111-1111-1111-111111111111")]
    public interface IWP7DLL
    {
        int GetStatus();
    };

    [ClassInterface(ClassInterfaceType.None)]
    [Guid("22222222-2222-2222-2222-222222222222")]
    public class WP7DLL : IWP7DLL
    {    
        public WP7DLL() { }

        public int GetStatus()
        {
             //Line that gives an exception in 64 bit
             MultiTargetingConnectivity connectivity = new MultiTargetingConnectivity(CultureInfo.CurrentUICulture.LCID);
             ...
             ...           
        }
   }
}

Answer 1

具有CLSID = {349AB2E8-71B6-4069-AD9C-1170849DA64C}的COM服务器是在C:\Program (X86)\公用文件\Microsoft Shared\Phone Tools\CoreCon\11.0\Bin\ConMan2.dll中实现的，该DLL没有64位版本。你不能直接从64位进程中使用32位DLL.

有个解决办法。您可以创建另一个项目，32位EXE，它可以任意调用32位DLL，并实现与主64位应用程序交互的任何IPC。对于特定的IPC机制，如果您只需要调用一个相对较长的任务并等待它完成，那么类似命令的app +命令行参数+退出代码就足够了。

如果您需要发出许多调用，我会选择WCF而不是命名管道传输。如果您选择这种方式，下面是一些实现该.EXE的示例代码。

/// <summary>The class from the shared assembly that defines WCF endpoint, and named events</summary>
public static class InteropShared
{
    // Host signals it's ready and listening. Replace the zero GUID with a new one
    public static readonly EventWaitHandle eventHostReady = new EventWaitHandle( false, EventResetMode.AutoReset, @"{00000000-0000-0000-0000-000000000000}" );

    // Client asks the host to quit. Replace the zero GUID with a new one
    public static readonly EventWaitHandle eventHostShouldStop = new EventWaitHandle( false, EventResetMode.AutoReset, @"{00000000-0000-0000-0000-000000000000}" );

    const string pipeBaseAddress = @"net.pipe://localhost";

    /// <summary>Pipe name</summary>
    // Replace the zero GUID with a new one.
    public const string pipeName = @"00000000-0000-0000-0000-000000000000";

    /// <summary>Base addresses for the hosted service.</summary>
    public static Uri baseAddress { get { return new Uri( pipeBaseAddress ); } }

    /// <summary>Complete address of the named pipe endpoint.</summary>
    public static Uri endpointAddress { get { return new Uri( pipeBaseAddress + '/' + pipeName ); } }
}

static class Program
{
    /// <summary>The main entry point for the application.</summary>
    [STAThread]
    static void Main()
    {
        // The class implementing iYourService interface that calls that 32-bit DLL
        YourService singletoneInstance = new YourService();

        using( ServiceHost host = new ServiceHost( singletoneInstance, InteropShared.baseAddress ) )
        {
            // iYourService = [ServiceContract]-marked interface from the shared assembly
            host.AddServiceEndpoint( typeof( iYourService ), new NetNamedPipeBinding(), InteropShared.pipeName );
            host.Open();

            InteropShared.eventHostReady.Set();

            // Wait for quit request
            InteropShared.eventHostShouldStop.WaitOne();

            host.Close();
        }
    }
}