Strange behavior

[John C]

yvad Wrote:

> QueryInterface of type HRESULTWindows (GUID * riidriid, out void* ppvObject ppvObject) overrides but is not covariant with QueryInterface of type HRESULT(GUID * riidriid, void* ppvObject ppvObject)

Further to my other reply ... The compiler is complaining because the function signatures don't match - one is lacking an "out" attribute. But the code you posted isn't missing the "out". Did you change the code before posting it here?