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unknown.cpp
Package: shell.rar　[view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 1k
Category:

Windows Kernel

Development Platform:

Visual C++

unknown.cpp：Code Content
  1. //*******************************************************************************************
  2. //
  3. // Filename : Unknown.cpp
  4. //
  5. // Customized CUnknown implmentations
  6. //
  7. // Copyright (c) 1994 - 1996 Microsoft Corporation. All rights reserved
  8. //
  9. //*******************************************************************************************
  11. #include "Pch.H"
  13. #include "ThisDll.H"
  15. #include "Unknown.H"
  17. CUnknown::~CUnknown()
  18. {
  19. }
  22. HRESULT CUnknown::QIHelper(REFIID riid, LPVOID *ppvObj, const IID *apiid[],
  23. LPUNKNOWN aobj[])
  24. {
  25. *ppvObj = NULL;
  27. LPUNKNOWN pObj;
  28.  
  29. if (riid == IID_IUnknown)
  30. {
  31. pObj = aobj[0]; 
  32. }
  33. else
  34. {
  35. for (int i=0; ; ++i)
  36. {
  37. if (!apiid[i])
  38. {
  39.     return(E_NOINTERFACE);
  40. }
  42. if (*apiid[i] == riid)
  43. {
  44. pObj = aobj[i];
  45. break;
  46. }
  47. }
  48. }
  50. pObj->AddRef();
  51. *ppvObj = pObj;
  53. return(NOERROR);
  54. }
  57. ULONG CUnknown::AddRefHelper()
  58. {
  59. return(m_cRef.AddRef());
  60. }
  63. ULONG CUnknown::ReleaseHelper()
  64. {
  65. if (!m_cRef.Release())
  66. {
  67.     delete this;
  68. return(0);
  69. }
  71. return(m_cRef.GetRef());
  72. }