protected override unsafe ComInterfaceEntry *ComputeVtables(object obj, CreateComInterfaceFlags flags, out int count)
{
if (IsRuntimeImplementedRCW(obj))
{
// If the object is a runtime-implemented RCW, let the runtime create a CCW.
count = 0;
return(null);
}
var entries = ComWrappersSupport.GetInterfaceTableEntries(obj);
if (flags.HasFlag(CreateComInterfaceFlags.CallerDefinedIUnknown))
{
entries.Add(new ComInterfaceEntry
{
IID = typeof(IUnknownVftbl).GUID,
Vtable = IUnknownVftbl.AbiToProjectionVftblPtr
});
}
entries.Add(new ComInterfaceEntry
{
IID = typeof(IInspectable).GUID,
Vtable = IInspectable.Vftbl.AbiToProjectionVftablePtr
});
count = entries.Count;
ComInterfaceEntry *nativeEntries = (ComInterfaceEntry *)Marshal.AllocCoTaskMem(sizeof(ComInterfaceEntry) * count);
for (int i = 0; i < count; i++)
{
nativeEntries[i] = entries[i];
}
ComInterfaceEntryCleanupTable.Add(obj, new VtableEntriesCleanupScout(nativeEntries));
return(nativeEntries);
}