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dllmain.c
Package: mysql-4.1.16-win-src.zip　[view]
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Upload Date: 2022-05-23
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Code Size: 2k
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MySQL

Development Platform:

Visual C++

dllmain.c：Code Content
  1. /*
  2.  *  --------------------------------------------------------------------------
  3.  * Copyright (C) 1997 Netscape Communications Corporation
  4.  *  --------------------------------------------------------------------------
  5.  *
  6.  *  dllmain.c
  7.  *
  8.  *  $Id: dllmain.c,v 1.3 2000/10/26 21:58:48 bostic Exp $
  9.  */
  11. #define WIN32_LEAN_AND_MEAN
  12. #include <windows.h>
  14. static int ProcessesAttached = 0;
  15. static HINSTANCE Instance; /* Global library instance handle. */
  17. /*
  18.  * The following declaration is for the VC++ DLL entry point.
  19.  */
  21. BOOL APIENTRY DllMain (HINSTANCE hInst,
  22.     DWORD reason, LPVOID reserved);
  24. /*
  25.  *----------------------------------------------------------------------
  26.  *
  27.  * DllEntryPoint --
  28.  *
  29.  * This wrapper function is used by Borland to invoke the
  30.  * initialization code for Tcl.  It simply calls the DllMain
  31.  * routine.
  32.  *
  33.  * Results:
  34.  * See DllMain.
  35.  *
  36.  * Side effects:
  37.  * See DllMain.
  38.  *
  39.  *----------------------------------------------------------------------
  40.  */
  42. BOOL APIENTRY
  43. DllEntryPoint(hInst, reason, reserved)
  44.     HINSTANCE hInst; /* Library instance handle. */
  45.     DWORD reason; /* Reason this function is being called. */
  46.     LPVOID reserved; /* Not used. */
  47. {
  48.     return DllMain(hInst, reason, reserved);
  49. }
  51. /*
  52.  *----------------------------------------------------------------------
  53.  *
  54.  * DllMain --
  55.  *
  56.  * This routine is called by the VC++ C run time library init
  57.  * code, or the DllEntryPoint routine.  It is responsible for
  58.  * initializing various dynamically loaded libraries.
  59.  *
  60.  * Results:
  61.  * TRUE on sucess, FALSE on failure.
  62.  *
  63.  * Side effects:
  64.  * Establishes 32-to-16 bit thunk and initializes sockets library.
  65.  *
  66.  *----------------------------------------------------------------------
  67.  */
  68. BOOL APIENTRY
  69. DllMain(hInst, reason, reserved)
  70.     HINSTANCE hInst; /* Library instance handle. */
  71.     DWORD reason; /* Reason this function is being called. */
  72.     LPVOID reserved; /* Not used. */
  73. {
  74.     switch (reason) {
  75.     case DLL_PROCESS_ATTACH:
  77. /*
  78.  * Registration of UT need to be done only once for first
  79.  * attaching process.  At that time set the tclWin32s flag
  80.  * to indicate if the DLL is executing under Win32s or not.
  81.  */
  83. if (ProcessesAttached++) {
  84.     return FALSE;         /* Not the first initialization. */
  85. }
  87. Instance = hInst;
  88. return TRUE;
  90.     case DLL_PROCESS_DETACH:
  92. ProcessesAttached--;
  93. break;
  94.     }
  96.     return TRUE;
  97. }