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ApplicationScope.h
Package: apihook_Code.zip　[view]
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Upload Date: 2007-01-13
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Code Size: 3k
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Hook api

Development Platform:

Visual C++

ApplicationScope.h：Code Content
  1. //---------------------------------------------------------------------------
  2. //
  3. // ApplicationScope.h
  4. //
  5. // SUBSYSTEM:   Hook system
  6. //
  7. // MODULE:      Hook server
  8. //
  9. // DESCRIPTION: Declares interface for the CApplicationScope class. 
  10. //              This class is designed to provide single interface for 
  11. //              all hook related activities.
  12. // 
  13. //             
  14. // AUTHOR: Ivo Ivanov (ivopi@hotmail.com)
  15. // DATE: 2001 December v1.00
  16. //
  17. //---------------------------------------------------------------------------
  19. #if !defined(_APPLICATIONSCOPE_H_)
  20. #define _APPLICATIONSCOPE_H_
  22. #if _MSC_VER > 1000
  23. #pragma once
  24. #endif // _MSC_VER > 1000
  26. #include "..CommonLockMgr.h"
  27. #include "..CommonCustomMessages.h"
  29. //---------------------------------------------------------------------------
  30. //
  31. // Global variables
  32. // 
  33. //---------------------------------------------------------------------------
  34. //
  35. // A global guard object used for protecting singelton's instantiation 
  36. //
  37. static CCSWrapper g_AppSingeltonLock;
  39. //---------------------------------------------------------------------------
  40. //
  41. // Prototype of the main hook function
  42. //
  43. //---------------------------------------------------------------------------
  44. typedef BOOL (WINAPI *PFN_INSTALLHOOK)(
  45. BOOL bActivate, 
  46. HWND hWndServer
  47. );
  50. //---------------------------------------------------------------------------
  51. //
  52. // class CApplicationScope 
  53. //
  54. //---------------------------------------------------------------------------
  55. class CApplicationScope  
  56. {
  57. private:
  58. //
  59. // Intentionally hide the defualt constructor,
  60. // copy constructor and assignment operator 
  61. //
  63. //
  64. // Default constructor
  65. //
  66. CApplicationScope();
  67. //
  68. // Copy constructor
  69. //
  70. CApplicationScope(const CApplicationScope& rhs);
  71. //
  72. // Assignment operator
  73. //
  74. CApplicationScope& operator=(const CApplicationScope& rhs);
  75. public:
  76. //
  77. // Destructor - we must declare it as public in order to provide
  78. // enough visibility for the GetInstance().
  79. // However the destructor shouldn't be called directly by the 
  80. // application's code.
  81. //
  82. virtual ~CApplicationScope();
  83. //
  84. // Implements the "double-checking" locking pattern combined with 
  85. // Scott Meyers single instance
  86. // For more details see - 
  87. // 1. "Modern C++ Design" by Andrei Alexandrescu - 6.9 Living in a 
  88. //     Multithreaded World
  89. // 2. "More Effective C++" by Scott Meyers - Item 26
  90. //
  91. static CApplicationScope& GetInstance();
  92. //
  93. // Delegates the call to the DLL InstallHook function
  94. //
  95. void InstallHook(BOOL bActivate, HWND hwndServer);
  96. //
  97. // Fired when a process loads hooktool dll
  98. //
  99. void OnDllLoaded(DWORD dwProcessId);
  100. //
  101. // Fired when a process unloads hooktool dll
  102. //
  103. void OnDllUnLoaded(DWORD dwProcessId);
  104. private:
  105. //
  106. // Instance's pointer holder
  107. //
  108. static CApplicationScope* sm_pInstance;
  109. //
  110. // HookTool handle
  111. //
  112. HMODULE m_hmodHookTool;
  113. //
  114. //
  115. //
  116. PFN_INSTALLHOOK m_pfnInstallHook;
  117. };
  119. #endif // !defined(_APPLICATIONSCOPE_H_)
  121. //----------------------------End of the file -------------------------------