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https://github.com/reactos/reactos.git
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127 lines
2 KiB
C++
127 lines
2 KiB
C++
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/*
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vfdshcfact.cpp
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Virtual Floppy Drive for Windows
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Driver control library
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shell extension COM class factory class
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Copyright (c) 2003-2005 Ken Kato
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <shlobj.h>
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#include "vfdtypes.h"
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#include "vfdlib.h"
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#include "vfdshext.h"
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// class header
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#include "vfdshcfact.h"
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//
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// constructor
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//
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CVfdFactory::CVfdFactory()
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{
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VFDTRACE(0, ("CVfdFactory::CVfdFactory()\n"));
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m_cRefCnt = 0L;
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g_cDllRefCnt++;
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}
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//
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// destructor
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//
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CVfdFactory::~CVfdFactory()
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{
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VFDTRACE(0, ("CVfdFactory::~CVfdFactory()\n"));
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g_cDllRefCnt--;
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}
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//
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// IUnknown methods
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//
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STDMETHODIMP CVfdFactory::QueryInterface(
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REFIID riid,
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LPVOID *ppv)
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{
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VFDTRACE(0, ("CVfdFactory::QueryInterface()\n"));
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*ppv = NULL;
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if (IsEqualIID(riid, IID_IUnknown) ||
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IsEqualIID(riid, IID_IClassFactory)) {
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*ppv = (LPCLASSFACTORY)this;
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AddRef();
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return NOERROR;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) CVfdFactory::AddRef()
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{
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VFDTRACE(0, ("CVfdFactory::AddRef()\n"));
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return ++m_cRefCnt;
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}
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STDMETHODIMP_(ULONG) CVfdFactory::Release()
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{
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VFDTRACE(0, ("CVfdFactory::Release()\n"));
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if (--m_cRefCnt) {
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return m_cRefCnt;
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}
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#ifndef __REACTOS__
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delete this;
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#endif
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return 0L;
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}
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//
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// IClassFactory methods
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//
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STDMETHODIMP CVfdFactory::CreateInstance(
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LPUNKNOWN pUnkOuter,
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REFIID riid,
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LPVOID *ppvObj)
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{
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VFDTRACE(0, ("CVfdFactory::CreateInstance()\n"));
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*ppvObj = NULL;
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// Shell extensions typically don't support
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// aggregation (inheritance)
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if (pUnkOuter) {
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return CLASS_E_NOAGGREGATION;
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}
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// Create the main shell extension object.
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// The shell will then call QueryInterface with IID_IShellExtInit
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// -- this is how shell extensions are initialized.
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LPCVFDSHEXT pVfdShExt = new CVfdShExt;
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if (!pVfdShExt) {
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return E_OUTOFMEMORY;
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}
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return pVfdShExt->QueryInterface(riid, ppvObj);
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}
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STDMETHODIMP CVfdFactory::LockServer(BOOL fLock)
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{
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VFDTRACE(0, ("CVfdFactory::LockServer()\n"));
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UNREFERENCED_PARAMETER(fLock);
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return NOERROR;
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}
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