106 lines
1.7 KiB
C++
106 lines
1.7 KiB
C++
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#include <windows.h>
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#include <objbase.h>
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#include <shlobj.h>
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#include <docobj.h>
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#include "shfolder.h"
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#include "classfac.h"
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extern LONG g_DllRefCount;
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CClassFactory::CClassFactory()
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{
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m_ObjRefCount = 1;
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InterlockedIncrement(&g_DllRefCount);
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}
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CClassFactory::~CClassFactory()
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{
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InterlockedDecrement(&g_DllRefCount);
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}
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STDMETHODIMP
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CClassFactory::QueryInterface(
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REFIID riid,
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LPVOID *ppReturn
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)
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{
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*ppReturn = NULL;
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if(IsEqualIID(riid, IID_IUnknown))
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*ppReturn = (IUnknown*)(CClassFactory*)this;
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else if(IsEqualIID(riid, IID_IClassFactory))
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*ppReturn = (CClassFactory*)this;
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if(*ppReturn == NULL)
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return E_NOINTERFACE;
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(*(LPUNKNOWN*)ppReturn)->AddRef();
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return S_OK;
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}
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STDMETHODIMP_(DWORD)
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CClassFactory::AddRef()
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{
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return InterlockedIncrement(&m_ObjRefCount);
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}
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STDMETHODIMP_(DWORD)
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CClassFactory::Release()
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{
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LONG lDecremented = InterlockedDecrement(&m_ObjRefCount);
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if(lDecremented == 0)
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delete this;
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return lDecremented;
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}
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STDMETHODIMP
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CClassFactory::CreateInstance(
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LPUNKNOWN pUnknown,
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REFIID riid,
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LPVOID *ppObject
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)
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{
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if(pUnknown != NULL)
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return CLASS_E_NOAGGREGATION;
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CShellFolder *pShellFolder = new CShellFolder(NULL, NULL);
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if(NULL == pShellFolder)
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return E_OUTOFMEMORY;
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//
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// get the QueryInterface return for our return value
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//
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HRESULT hResult = pShellFolder->QueryInterface(riid, ppObject);
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//
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// call Release to decrement the ref count
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//
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pShellFolder->Release();
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return hResult;
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}
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STDMETHODIMP
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CClassFactory::LockServer(
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BOOL fLock
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)
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{
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return E_NOTIMPL;
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}
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