Why return type of AddRef() and Release() is NOT HRESULT

Why return type of AddRef() and Release() is NOT HRESULT



1.AddRef and Release function of COM inteface

Description:STDMETHODIMP_(ULONG) CMediaSample::AddRef() { return
InterlockedIncrement(&m_cRef);} STDMETHODIMP_(ULONG)
CMediaSample::Release() { /* Decrement our own private ...



2.Question about QueryInterface() and Release() - (COM ...

Description:The return value for AddRef and Release are for diagnostic
purposes ... of the type you are asking ... I couldn't figure out why it
kept hanging when ...



3.why AddRef() called?! - CodeGuru Forums

Description:... connection; // Need the AddRef() as VariantClear() calls
Release(), ... AddRef(); return m_recordset ... tell me why I must call
V_DISPATCH(&v)->AddRef() ...



4.why AddRef() called?! - Visual C++ Programming

Description:... why AddRef() called?! Visual C++ ... = VT_DISPATCH;
V_DISPATCH(&v) = (IDispatch*) m_connection; // Need the AddRef() as
VariantClear() calls Release ...



5.AddRef and Release function of COM inteface - Visual C++ ...

Description:STDMETHODIMP_(ULONG) CMediaSample::AddRef() {return
InterlockedIncrement(&m_cRef);} STDMETHODIMP_(ULONG)
CMediaSample::Release() {/* Decrement our own private ...



6.CLR Inside Out: Managing Object Lifetime

Description:The calls to AddRef and Release were eased by the use of ...
theObject).AddRef(); } return ... and changing the return type of AddRef
makes the ...



7.Reference Manual - Using nsCOMPtr | MDN

Description:... that may look better to // you when applied to functions
that return |AddRef ... of the wrong type. It has already AddRefed ... of
AddRef, Release, ...



8.Re: In COM Addref() and Release() function is called ...

Description:In COM Addref() and Release() ... appropriate function pointer
type ... you return a fat pointer ...



9.GFA-BASIC 32 for Windows: COM (OOP) in GB32 - IUnknown (1)

Description:15-07-2011 · ... (IUnknownImplVtbl_AddRef) .Release = ProcAddr
... {ppv} = * this IUnknownImplVtbl_AddRef (this) Return S_OK EndIf Return
E ... Why CreateObject ...



10.Modularization Techniques | MDN - Mozilla Developer Network

Description:Both AddRef() and Release() return the ... macros are
basically shorthand for virtual nsresult and virtual type. ... Why the
b66c couplet gets broken up and grouped ...