67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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// PageFact.h: interface for the CPageFactory class.
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//
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//////////////////////////////////////////////////////////////////////
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#ifndef __PAGEFACT_H_
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#define __PAGEFACT_H_
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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typedef struct
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{
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const CLSID *pclsid;
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_ATL_CREATORFUNC* pfnCreateInstance;
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} _PAGEMAP_ENTRY;
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#define PAGE_ENTRY2(clsid,class) {&clsid, class::_CreatorClass::CreateInstance},
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#define PAGE_ENTRY(class) PAGE_ENTRY2(__uuidof(class), class)
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#define BEGIN_PAGE_MAP(class) const _PAGEMAP_ENTRY class::s_rgPage[] = {
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#define END_PAGE_MAP() {&CLSID_NULL, NULL} };
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class CPageFactory :
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public CComObjectRoot,
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public ITaskPageFactory
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{
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public:
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DECLARE_NOT_AGGREGATABLE(CPageFactory)
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BEGIN_COM_MAP(CPageFactory)
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COM_INTERFACE_ENTRY(ITaskPageFactory)
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END_COM_MAP()
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// ITaskPageFactory
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STDMETHOD(CreatePage)(REFCLSID rclsidPage, REFIID riid, void **ppv)
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{
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HRESULT hr = CLASS_E_CLASSNOTAVAILABLE;
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for (UINT i = 0; CLSID_NULL != *s_rgPage[i].pclsid; i++)
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{
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if (rclsidPage == *s_rgPage[i].pclsid)
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{
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if (NULL != s_rgPage[i].pfnCreateInstance)
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{
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hr = s_rgPage[i].pfnCreateInstance(NULL, riid, ppv);
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}
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break;
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}
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}
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return hr;
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}
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template <class Q>
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static HRESULT CreateInstance(Q** pp)
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{
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return CPageFactory::_CreatorClass::CreateInstance(NULL, __uuidof(Q), (void**)pp);
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}
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private:
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static const _PAGEMAP_ENTRY s_rgPage[];
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};
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#endif // __PAGEFACT_H_
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