dead ends, all dead ends

microsoft · Jul 16, 2020 · 8c5041b · 8c5041b
1 parent a511ab0
commit 8c5041b
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Showing 2 changed files with 44 additions and 6 deletions.
diff --git a/src/tools/ScratchWinRTClient/main.cpp b/src/tools/ScratchWinRTClient/main.cpp
@@ -227,6 +227,7 @@ void managerApp()
     {
         auto b = f.as<IMyComInterface>();
         winrt::check_hresult(b->Call());
+        printf("The Foo works just _fine_\n");
     }
     catch (hresult_error const& e)
     {
@@ -242,11 +243,48 @@ void managerApp()
 
         // This obviously doesn't work, because winrt::Server::HostClass doesn't
         // implement IMyComInterface. The implementation does!
-        auto mci = host0.as<IMyComInterface>();
-        if (mci)
-        {
-            mci->Call();
-        }
+        // auto mci = host0.as<IMyComInterface>();
+        // if (mci)
+        // if (mci)
+        // {
+        //     mci->Call();
+        // }
+
+        // Again, this doesn't work because the compiler doesn't know that
+        // Server::impl::HostClass implements IMyComInterface
+        // winrt::com_ptr<IMyComInterface> c;
+        // c.copy_from(winrt::get_self<IMyComInterface>(host0));
+        // if (c)
+        // {
+        //     c->Call();
+        // }
+
+        // Unsurprisingly, none of the follwoing works either:
+        // auto pvoid = winrt::put_abi(host0);
+        // printf("Step 1\n");
+        // // winrt::com_ptr<::IUnknown> unk{};
+        // ::IUnknown* iunk = (::IUnknown*)*pvoid;
+        // printf("Step 2\n");
+        // winrt::com_ptr<::IUnknown> unk; // { &iunk };
+        // unk.copy_from(iunk);
+        // printf("Step 3\n");
+
+        // auto mci = unk.as<IMyComInterface>();
+        // if (mci)
+        // {
+        //     mci->Call();
+        //     printf("Step 4\n");
+        // }
+
+        // printf("Step 5\n");
+        // IMyComInterface* mciraw;
+        // unk->QueryInterface(__uuidof(IMyComInterface), (void**)&mciraw);
+        // if (mci)
+        // {
+        //     mci->Call();
+        //     printf("Step 6\n");
+        // }
+        // printf("Step 7\n");
     }
     catch (hresult_error const& e)
     {

diff --git a/src/tools/ScratchWinRTServer/HostClass.idl b/src/tools/ScratchWinRTServer/HostClass.idl
@@ -2,7 +2,7 @@
 
 namespace ScratchWinRTServer
 {
-    [default_interface] runtimeclass HostClass : IUnknown // : IScratchInterface
+    [default_interface] runtimeclass HostClass // : IScratchInterface
     {
         HostClass(Guid g);
         void DoTheThing();