Source code of Windows XP (NT5)
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//*******************************************************************************************
//
// Filename : ThisDll.h
//
// Generic OLE header file
//
// Copyright (c) 1994 - 1996 Microsoft Corporation. All rights reserved
//
//*******************************************************************************************
#ifndef _THISDLL_H_
#define _THISDLL_H_
class CWaitCursor
{
public:
CWaitCursor() {m_cOld=SetCursor(LoadCursor(NULL, IDC_WAIT));}
~CWaitCursor() {SetCursor(m_cOld);}
private:
HCURSOR m_cOld;
} ;
class CRefCount
{
public:
CRefCount() : m_cRef(0) {};
UINT AddRef() {return(++m_cRef);}
UINT Release() {return(--m_cRef);}
UINT GetRef() {return( m_cRef);}
private:
UINT m_cRef;
} ;
class CThisDll
{
public:
CThisDll() {
m_hInst=NULL;
}
// Make no destructor for global classes (requires CRT stuff)
void SetInstance(HINSTANCE hInst) {m_hInst=hInst;}
HINSTANCE GetInstance() {return(m_hInst);}
CRefCount m_cRef;
CRefCount m_cLock;
private:
HINSTANCE m_hInst;
} ;
extern CThisDll g_ThisDll;
class CRefDll
{
public:
CRefDll() {g_ThisDll.m_cRef.AddRef ();}
~CRefDll() {g_ThisDll.m_cRef.Release();}
} ;
extern HRESULT CabFolder_CreateInstance(REFIID riid, LPVOID *ppvObj);
extern HRESULT CabViewDataObject_CreateInstance(REFIID riid, LPVOID *ppvObj);
class CSafeMalloc
{
public:
CSafeMalloc()
{
if (!SUCCEEDED(SHGetMalloc(&m_ShIMalloc)))
{
m_ShIMalloc = NULL;
}
}
~CSafeMalloc() {if (m_ShIMalloc) m_ShIMalloc->Release();}
LPVOID Alloc(UINT cb) {return(m_ShIMalloc ? m_ShIMalloc->Alloc(cb) : NULL);}
void Free(LPVOID pv) {if (m_ShIMalloc) m_ShIMalloc->Free(pv);}
private:
IMalloc* m_ShIMalloc;
} ;
#endif // _THISDLL_H_