D3D12_INDIRECT_ARGUMENT_DESC (famille XBOX One)

typedef struct D3D12_INDIRECT_ARGUMENT_DESC {  
    D3D12_INDIRECT_ARGUMENT_TYPE Type;  
    union  
    {  
        struct
        {
            UINT Slot;
        } VertexBuffer;
        struct
        {
            UINT RootParameterIndex;
            UINT DestOffsetIn32BitValues;
            UINT Num32BitValuesToSet;
        } Constant;
        struct
        {
            UINT RootParameterIndex;
        } ConstantBufferView;
        struct
        {
            UINT RootParameterIndex;
        } ShaderResourceView;
        struct
        {
            UINT RootParameterIndex;
        } UnorderedAccessView;
        struct
        {
            UINT RootParameterIndex;
        } DescriptorTable;
        struct  
        {
            UINT SizeInBytes;
        } Padding;
        struct
        {
            D3D12XBOX_DISPATCH_FLAGS Flags;
        } DispatchL2;
    };  
} D3D12_INDIRECT_ARGUMENT_DESC