private static extern Result CoCreateInstance([In][MarshalAs(UnmanagedType.LPStruct)]
Guid rclsid,
IntPtr pUnkOuter,
ComContext dwClsContext,
[In][MarshalAs(UnmanagedType.LPStruct)]
Guid riid,
out IntPtr comObject);
private static extern Result CoCreateInstanceFromApp([In][MarshalAs(UnmanagedType.LPStruct)]
Guid rclsid,
IntPtr pUnkOuter,
ComContext dwClsContext,
IntPtr reserved,
int countMultiQuery,
ref MultiQueryInterface query);
public static Result CreateComInstance(Guid classGuid, ComContext context, Guid interfaceGuid,
out IntPtr comObject)
{
return(PlatformDetection.IsAppContainerProcess
? CreateComInstanceRestricted(classGuid, context, interfaceGuid, out comObject)
: CreateComInstanceUnrestricted(classGuid, context, interfaceGuid, out comObject));
}
public static unsafe bool TryCreateComInstance(Guid classGuid, ComContext context, Guid interfaceGuid, ComObject comObject)
{
if (!PlatformDetection.IsUAP)
{
var result = CoCreateInstance(classGuid, IntPtr.Zero, context, interfaceGuid, out IntPtr pointer);
comObject.NativePointer = pointer;
return(result.Success);
}
else
{
var localQuery = new MultiQueryInterface()
{
InterfaceIID = new IntPtr(&interfaceGuid),
IUnknownPointer = IntPtr.Zero,
ResultCode = 0,
};
var result = CoCreateInstanceFromApp(classGuid, IntPtr.Zero, context, IntPtr.Zero, 1, ref localQuery);
comObject.NativePointer = localQuery.IUnknownPointer;
return(result.Success && localQuery.ResultCode.Success);
}
}
public unsafe static void CreateComInstance(Guid classGuid, ComContext context, Guid interfaceGuid, ComObject comObject)
{
if (!VorticePlatformDetection.IsUAP)
{
var result = CoCreateInstance(classGuid, IntPtr.Zero, context, interfaceGuid, out IntPtr pointer);
result.CheckError();
comObject.NativePointer = pointer;
}
else
{
var localQuery = new MultiQueryInterface()
{
InterfaceIID = new IntPtr(&interfaceGuid),
IUnknownPointer = IntPtr.Zero,
ResultCode = 0,
};
var result = CoCreateInstanceFromApp(classGuid, IntPtr.Zero, context, IntPtr.Zero, 1, ref localQuery);
result.CheckError();
localQuery.ResultCode.CheckError();
comObject.NativePointer = localQuery.IUnknownPointer;
}
}
public static unsafe Result CreateComInstanceRestricted(Guid classGuid, ComContext context, Guid interfaceGuid,
out IntPtr comObject)
{
var localQuery = new MultiQueryInterface
{
InterfaceIID = new IntPtr(&interfaceGuid),
IUnknownPointer = IntPtr.Zero,
ResultCode = 0
};
var result = CoCreateInstanceFromApp(classGuid, IntPtr.Zero, context, IntPtr.Zero, 1, ref localQuery);
comObject = localQuery.IUnknownPointer;
if (!result.Success)
{
return(result);
}
if (!localQuery.ResultCode.Success)
{
return(localQuery.ResultCode);
}
if (result != Result.Ok)
{
return(result);
}
if (localQuery.ResultCode != Result.Ok)
{
return(localQuery.ResultCode);
}
return(Result.Ok);
}
public static Result CreateComInstanceUnrestricted(Guid classGuid, ComContext context, Guid interfaceGuid,
out IntPtr comObject) =>
CoCreateInstance(classGuid, IntPtr.Zero, context, interfaceGuid, out comObject);
