COM interfaces should not redefine members from base interfaces

[AArnott]

I believe we previously agreed that COM interfaces in the metadata should derive from interfaces and should not redefine members from those base interfaces, instead leaving that to the projection.

However several interfaces (e.g. IVssWriterComponentsExt) are redefining members from the base interfaces, which is causing problems with our C# projection.

[kennykerr]

I think it's just this particular type because this is not a valid COM interface:

class IVssWriterComponentsExt :
    public IVssWriterComponents,
    public IUnknown
{
};

COM requires single inheritance and this is, well, something else.

[kennykerr]

I would just skip over this type when parsing - Steve should probably just exclude it.

[AArnott]

There are several such types. So lets fix or exclude all of them.

[sotteson1]

It looks like all of these related "interfaces" are C++ classes and not interfaces. The docs call them that as well. I guess I will remove them unless anyone has a better idea.

[AArnott]

Other problematic interfaces:

ID2D1BitmapRenderTarget.cs(153,33): error CS0111: Type 'ID2D1BitmapRenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1BitmapRenderTarget.cs(164,33): error CS0111: Type 'ID2D1BitmapRenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1BitmapRenderTarget.cs(170,23): error CS0111: Type 'ID2D1BitmapRenderTarget' already defines a member called 'AddRef' with the same parameter types

ID2D1BitmapRenderTarget.cs(176,23): error CS0111: Type 'ID2D1BitmapRenderTarget' already defines a member called 'Release' with the same parameter types

ID2D1BitmapRenderTarget.cs(183,30): error CS0111: Type 'ID2D1BitmapRenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1BitmapRenderTarget.cs(191,30): error CS0111: Type 'ID2D1BitmapRenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1HwndRenderTarget.cs(153,33): error CS0111: Type 'ID2D1HwndRenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1HwndRenderTarget.cs(164,33): error CS0111: Type 'ID2D1HwndRenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1HwndRenderTarget.cs(170,23): error CS0111: Type 'ID2D1HwndRenderTarget' already defines a member called 'AddRef' with the same parameter types

ID2D1HwndRenderTarget.cs(176,23): error CS0111: Type 'ID2D1HwndRenderTarget' already defines a member called 'Release' with the same parameter types

ID2D1HwndRenderTarget.cs(183,30): error CS0111: Type 'ID2D1HwndRenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1HwndRenderTarget.cs(191,30): error CS0111: Type 'ID2D1HwndRenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1RenderTarget.cs(153,33): error CS0111: Type 'ID2D1RenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1RenderTarget.cs(164,33): error CS0111: Type 'ID2D1RenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1RenderTarget.cs(170,23): error CS0111: Type 'ID2D1RenderTarget' already defines a member called 'AddRef' with the same parameter types

ID2D1RenderTarget.cs(176,23): error CS0111: Type 'ID2D1RenderTarget' already defines a member called 'Release' with the same parameter types

ID2D1RenderTarget.cs(183,30): error CS0111: Type 'ID2D1RenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1RenderTarget.cs(191,30): error CS0111: Type 'ID2D1RenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1Properties.cs(69,33): error CS0111: Type 'ID2D1Properties' already defines a member called 'QueryInterface' with the same parameter types

ID2D1Properties.cs(80,33): error CS0111: Type 'ID2D1Properties' already defines a member called 'QueryInterface' with the same parameter types

ID2D1Properties.cs(86,23): error CS0111: Type 'ID2D1Properties' already defines a member called 'AddRef' with the same parameter types

ID2D1Properties.cs(92,23): error CS0111: Type 'ID2D1Properties' already defines a member called 'Release' with the same parameter types

ID2D1GeometryGroup.cs(179,33): error CS0111: Type 'ID2D1GeometryGroup' already defines a member called 'QueryInterface' with the same parameter types

ID2D1GeometryGroup.cs(190,33): error CS0111: Type 'ID2D1GeometryGroup' already defines a member called 'QueryInterface' with the same parameter types

ID2D1GeometryGroup.cs(196,23): error CS0111: Type 'ID2D1GeometryGroup' already defines a member called 'AddRef' with the same parameter types

ID2D1GeometryGroup.cs(202,23): error CS0111: Type 'ID2D1GeometryGroup' already defines a member called 'Release' with the same parameter types

ID2D1GeometryGroup.cs(209,30): error CS0111: Type 'ID2D1GeometryGroup' already defines a member called 'GetFactory' with the same parameter types

ID2D1GeometryGroup.cs(217,30): error CS0111: Type 'ID2D1GeometryGroup' already defines a member called 'GetFactory' with the same parameter types

ID2D1Factory.cs(53,23): error CS0111: Type 'ID2D1Factory' already defines a member called 'Release' with the same parameter types

ID2D1Geometry.cs(179,33): error CS0111: Type 'ID2D1Geometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1Geometry.cs(190,33): error CS0111: Type 'ID2D1Geometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1Geometry.cs(196,23): error CS0111: Type 'ID2D1Geometry' already defines a member called 'AddRef' with the same parameter types

ID2D1Geometry.cs(202,23): error CS0111: Type 'ID2D1Geometry' already defines a member called 'Release' with the same parameter types

ID2D1Geometry.cs(209,30): error CS0111: Type 'ID2D1Geometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1Geometry.cs(217,30): error CS0111: Type 'ID2D1Geometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1Effect.cs(69,33): error CS0111: Type 'ID2D1Effect' already defines a member called 'QueryInterface' with the same parameter types

ID2D1Effect.cs(80,33): error CS0111: Type 'ID2D1Effect' already defines a member called 'QueryInterface' with the same parameter types

ID2D1Effect.cs(86,23): error CS0111: Type 'ID2D1Effect' already defines a member called 'AddRef' with the same parameter types

ID2D1Effect.cs(92,23): error CS0111: Type 'ID2D1Effect' already defines a member called 'Release' with the same parameter types

ID2D1Effect.cs(158,33): error CS0111: Type 'ID2D1Effect' already defines a member called 'GetSubProperties' with the same parameter types

ID2D1TransformedGeometry.cs(179,33): error CS0111: Type 'ID2D1TransformedGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1TransformedGeometry.cs(190,33): error CS0111: Type 'ID2D1TransformedGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1TransformedGeometry.cs(196,23): error CS0111: Type 'ID2D1TransformedGeometry' already defines a member called 'AddRef' with the same parameter types

ID2D1TransformedGeometry.cs(202,23): error CS0111: Type 'ID2D1TransformedGeometry' already defines a member called 'Release' with the same parameter types

ID2D1TransformedGeometry.cs(209,30): error CS0111: Type 'ID2D1TransformedGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1TransformedGeometry.cs(217,30): error CS0111: Type 'ID2D1TransformedGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1RectangleGeometry.cs(179,33): error CS0111: Type 'ID2D1RectangleGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1RectangleGeometry.cs(190,33): error CS0111: Type 'ID2D1RectangleGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1RectangleGeometry.cs(196,23): error CS0111: Type 'ID2D1RectangleGeometry' already defines a member called 'AddRef' with the same parameter types

ID2D1RectangleGeometry.cs(202,23): error CS0111: Type 'ID2D1RectangleGeometry' already defines a member called 'Release' with the same parameter types

ID2D1RectangleGeometry.cs(209,30): error CS0111: Type 'ID2D1RectangleGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1RectangleGeometry.cs(217,30): error CS0111: Type 'ID2D1RectangleGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1DeviceContext.cs(163,33): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'QueryInterface' with the same parameter types

ID2D1DeviceContext.cs(174,33): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'QueryInterface' with the same parameter types

ID2D1DeviceContext.cs(180,23): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'AddRef' with the same parameter types

ID2D1DeviceContext.cs(186,23): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'Release' with the same parameter types

ID2D1DeviceContext.cs(193,30): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'GetFactory' with the same parameter types

ID2D1DeviceContext.cs(201,30): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'GetFactory' with the same parameter types

ID2D1DeviceContext.cs(673,29): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'GetPixelSize' with the same parameter types

ID2D1DeviceContext.cs(679,23): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'GetMaximumBitmapSize' with the same parameter types

ID2D1DeviceContext.cs(686,30): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'IsSupported' with the same parameter types

ID2D1DeviceContext.cs(694,30): error CS0111: Type 'ID2D1DeviceContext' already defines a member called 'IsSupported' with the same parameter types

ID2D1EllipseGeometry.cs(179,33): error CS0111: Type 'ID2D1EllipseGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1EllipseGeometry.cs(190,33): error CS0111: Type 'ID2D1EllipseGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1EllipseGeometry.cs(196,23): error CS0111: Type 'ID2D1EllipseGeometry' already defines a member called 'AddRef' with the same parameter types

ID2D1EllipseGeometry.cs(202,23): error CS0111: Type 'ID2D1EllipseGeometry' already defines a member called 'Release' with the same parameter types

ID2D1EllipseGeometry.cs(209,30): error CS0111: Type 'ID2D1EllipseGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1EllipseGeometry.cs(217,30): error CS0111: Type 'ID2D1EllipseGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1RoundedRectangleGeometry.cs(179,33): error CS0111: Type 'ID2D1RoundedRectangleGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1RoundedRectangleGeometry.cs(190,33): error CS0111: Type 'ID2D1RoundedRectangleGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1RoundedRectangleGeometry.cs(196,23): error CS0111: Type 'ID2D1RoundedRectangleGeometry' already defines a member called 'AddRef' with the same parameter types

ID2D1RoundedRectangleGeometry.cs(202,23): error CS0111: Type 'ID2D1RoundedRectangleGeometry' already defines a member called 'Release' with the same parameter types

ID2D1RoundedRectangleGeometry.cs(209,30): error CS0111: Type 'ID2D1RoundedRectangleGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1RoundedRectangleGeometry.cs(217,30): error CS0111: Type 'ID2D1RoundedRectangleGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1DCRenderTarget.cs(153,33): error CS0111: Type 'ID2D1DCRenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1DCRenderTarget.cs(164,33): error CS0111: Type 'ID2D1DCRenderTarget' already defines a member called 'QueryInterface' with the same parameter types

ID2D1DCRenderTarget.cs(170,23): error CS0111: Type 'ID2D1DCRenderTarget' already defines a member called 'AddRef' with the same parameter types

ID2D1DCRenderTarget.cs(176,23): error CS0111: Type 'ID2D1DCRenderTarget' already defines a member called 'Release' with the same parameter types

ID2D1DCRenderTarget.cs(183,30): error CS0111: Type 'ID2D1DCRenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1DCRenderTarget.cs(191,30): error CS0111: Type 'ID2D1DCRenderTarget' already defines a member called 'GetFactory' with the same parameter types

ID2D1PathGeometry.cs(179,33): error CS0111: Type 'ID2D1PathGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1PathGeometry.cs(190,33): error CS0111: Type 'ID2D1PathGeometry' already defines a member called 'QueryInterface' with the same parameter types

ID2D1PathGeometry.cs(196,23): error CS0111: Type 'ID2D1PathGeometry' already defines a member called 'AddRef' with the same parameter types

ID2D1PathGeometry.cs(202,23): error CS0111: Type 'ID2D1PathGeometry' already defines a member called 'Release' with the same parameter types

ID2D1PathGeometry.cs(209,30): error CS0111: Type 'ID2D1PathGeometry' already defines a member called 'GetFactory' with the same parameter types

ID2D1PathGeometry.cs(217,30): error CS0111: Type 'ID2D1PathGeometry' already defines a member called 'GetFactory' with the same parameter types