92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
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//*******************************************************************************************
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//
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// Filename : ThisDll.h
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//
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// Generic OLE header file
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//
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// Copyright (c) 1994 - 1996 Microsoft Corporation. All rights reserved
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//
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//*******************************************************************************************
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#ifndef _THISDLL_H_
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#define _THISDLL_H_
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class CWaitCursor
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{
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public:
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CWaitCursor() {m_cOld=SetCursor(LoadCursor(NULL, IDC_WAIT));}
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~CWaitCursor() {SetCursor(m_cOld);}
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private:
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HCURSOR m_cOld;
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} ;
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class CRefCount
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{
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public:
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CRefCount() : m_cRef(0) {};
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UINT AddRef() {return(++m_cRef);}
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UINT Release() {return(--m_cRef);}
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UINT GetRef() {return( m_cRef);}
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private:
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UINT m_cRef;
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} ;
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class CThisDll
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{
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public:
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CThisDll() {
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m_hInst=NULL;
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}
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// Make no destructor for global classes (requires CRT stuff)
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void SetInstance(HINSTANCE hInst) {m_hInst=hInst;}
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HINSTANCE GetInstance() {return(m_hInst);}
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CRefCount m_cRef;
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CRefCount m_cLock;
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private:
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HINSTANCE m_hInst;
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} ;
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extern CThisDll g_ThisDll;
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class CRefDll
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{
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public:
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CRefDll() {g_ThisDll.m_cRef.AddRef ();}
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~CRefDll() {g_ThisDll.m_cRef.Release();}
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} ;
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extern HRESULT CabFolder_CreateInstance(REFIID riid, LPVOID *ppvObj);
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extern HRESULT CabViewDataObject_CreateInstance(REFIID riid, LPVOID *ppvObj);
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class CSafeMalloc
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{
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public:
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CSafeMalloc()
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{
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if (!SUCCEEDED(SHGetMalloc(&m_ShIMalloc)))
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{
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m_ShIMalloc = NULL;
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}
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}
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~CSafeMalloc() {if (m_ShIMalloc) m_ShIMalloc->Release();}
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LPVOID Alloc(UINT cb) {return(m_ShIMalloc ? m_ShIMalloc->Alloc(cb) : NULL);}
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void Free(LPVOID pv) {if (m_ShIMalloc) m_ShIMalloc->Free(pv);}
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private:
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IMalloc* m_ShIMalloc;
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} ;
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#endif // _THISDLL_H_
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