120 lines
2.4 KiB
C++
120 lines
2.4 KiB
C++
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright © Microsoft Corporation. All rights reserved
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/*++
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Module Name:
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callnot.h
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Abstract:
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Declaration of the CTAPIEventNotification object
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--*/
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#ifndef __TAPIEventNotification_H__
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#define __TAPIEventNotification_H__
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#define WM_PRIVATETAPIEVENT WM_USER+101
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/////////////////////////////////////////////////////////////////////////////
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// CTAPIEventNotification
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class CTAPIEventNotification : public ITTAPIEventNotification
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{
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private:
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// Refcount for COM
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LONG m_dwRefCount;
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// Member data
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HWND m_hWnd;
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public:
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// CTAPIEventNotification implements ITTAPIEventNotification
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// Declare ITTAPIEventNotification methods here
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HRESULT STDMETHODCALLTYPE Event(
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TAPI_EVENT TapiEvent,
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IDispatch * pEvent
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);
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// other COM stuff:
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public:
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// constructor
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CTAPIEventNotification() {}
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// destructor
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~CTAPIEventNotification(){}
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// initialization function
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// this stuff could also be done in the
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// constructor
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HRESULT Initialize( )
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{
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m_dwRefCount = 1;
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return S_OK;
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}
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void Shutdown()
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{
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}
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void SetHWND( HWND hWnd )
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{
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m_hWnd = hWnd;
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}
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// IUnknown implementation
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HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void **ppvObject)
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{
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if (iid == IID_ITTAPIEventNotification)
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{
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AddRef();
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*ppvObject = (void *)this;
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return S_OK;
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}
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if (iid == IID_IUnknown)
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{
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AddRef();
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*ppvObject = (void *)this;
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return S_OK;
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}
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*ppvObject = NULL;
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return E_NOINTERFACE;
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}
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//
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// reference counting needs to be thread safe
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//
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ULONG STDMETHODCALLTYPE AddRef()
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{
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ULONG l = InterlockedIncrement(&m_dwRefCount);
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return l;
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}
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ULONG STDMETHODCALLTYPE Release()
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{
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ULONG l = InterlockedDecrement(&m_dwRefCount);
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if ( 0 == l)
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{
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delete this;
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}
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return l;
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}
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};
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#endif //__TAPIEventNotification_H__
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