source: trunk/src/user32/initterm.c@ 4

Last change on this file since 4 was 4, checked in by ktk, 26 years ago

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1/* $Id: initterm.c,v 1.1 1999-05-24 20:19:59 ktk Exp $ */
2
3/*
4 *
5 * Project Odin Software License can be found in LICENSE.TXT
6 *
7 */
8/*
9 * USER32 DLL entry point
10 *
11 * Copyright 1998 Sander van Leeuwen
12 * Copyright 1998 Peter Fitzsimmons
13 *
14 */
15
16/*-------------------------------------------------------------*/
17/* INITERM.C -- Source for a custom dynamic link library */
18/* initialization and termination (_DLL_InitTerm) */
19/* function. */
20/* */
21/* When called to perform initialization, this sample function */
22/* gets storage for an array of integers, and initializes its */
23/* elements with random integers. At termination time, it */
24/* frees the array. Substitute your own special processing. */
25/*-------------------------------------------------------------*/
26
27
28/* Include files */
29#define INCL_DOSMODULEMGR
30#define INCL_DOSPROCESS
31#include <os2.h>
32#include <stdlib.h>
33#include <stdio.h>
34#include <string.h>
35#include <builtin.h>
36#include "misc.h" /*PLF Wed 98-03-18 23:18:29*/
37
38/*-------------------------------------------------------------------*/
39/* _CRT_init is the C run-time environment initialization function. */
40/* It will return 0 to indicate success and -1 to indicate failure. */
41/*-------------------------------------------------------------------*/
42int _CRT_init(void);
43/*-------------------------------------------------------------------*/
44/* _CRT_term is the C run-time environment termination function. */
45/* It only needs to be called when the C run-time functions are */
46/* statically linked. */
47/*-------------------------------------------------------------------*/
48void _CRT_term(void);
49void __ctordtorInit( void );
50void __ctordtorTerm( void );
51
52void RegisterSystemClasses(ULONG hModule);
53
54/*-------------------------------------------------------------------*/
55/* A clean up routine registered with DosExitList must be used if */
56/* runtime calls are required and the runtime is dynamically linked. */
57/* This will guarantee that this clean up routine is run before the */
58/* library DLL is terminated. */
59/*-------------------------------------------------------------------*/
60static void APIENTRY cleanup(ULONG reason);
61
62
63
64/****************************************************************************/
65/* _DLL_InitTerm is the function that gets called by the operating system */
66/* loader when it loads and frees this DLL for each process that accesses */
67/* this DLL. However, it only gets called the first time the DLL is loaded */
68/* and the last time it is freed for a particular process. The system */
69/* linkage convention MUST be used because the operating system loader is */
70/* calling this function. */
71/****************************************************************************/
72unsigned long _System _DLL_InitTerm(unsigned long hModule, unsigned long
73 ulFlag)
74{
75 size_t i;
76 APIRET rc;
77
78 /*-------------------------------------------------------------------------*/
79 /* If ulFlag is zero then the DLL is being loaded so initialization should */
80 /* be performed. If ulFlag is 1 then the DLL is being freed so */
81 /* termination should be performed. */
82 /*-------------------------------------------------------------------------*/
83
84 switch (ulFlag) {
85 case 0 :
86
87 /*******************************************************************/
88 /* The C run-time environment initialization function must be */
89 /* called before any calls to C run-time functions that are not */
90 /* inlined. */
91 /*******************************************************************/
92
93 if (_CRT_init() == -1)
94 return 0UL;
95 __ctordtorInit();
96
97 CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed 98-03-18 05:28:48*/
98 /*******************************************************************/
99 /* A DosExitList routine must be used to clean up if runtime calls */
100 /* are required and the runtime is dynamically linked. */
101 /*******************************************************************/
102
103 rc = DosExitList(0x0000FF00|EXLST_ADD, cleanup);
104 if(rc)
105 return 0UL;
106
107 //SvL: 18-7-'98, Register system window classes (button, listbox etc etc)
108 RegisterSystemClasses(hModule);
109 break;
110 case 1 :
111 break;
112 default :
113 return 0UL;
114 }
115
116 /***********************************************************/
117 /* A non-zero value must be returned to indicate success. */
118 /***********************************************************/
119 return 1UL;
120}
121
122
123static void APIENTRY cleanup(ULONG ulReason)
124{
125 dprintf(("user32 exit\n"));
126 __ctordtorTerm();
127 _CRT_term();
128 dprintf(("user32 exit done\n"));
129 DosExitList(EXLST_EXIT, cleanup);
130 return ;
131}
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