source: trunk/src/user32/initterm.cpp@ 51

Last change on this file since 51 was 51, checked in by sandervl, 26 years ago

* empty log message *
File size: 5.1 KB
Line 
1/*
2 * USER32 DLL entry point
3 *
4 * Copyright 1998 Sander van Leeuwen
5 * Copyright 1998 Peter Fitzsimmons
6 *
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 */
11
12/*-------------------------------------------------------------*/
13/* INITERM.C -- Source for a custom dynamic link library */
14/* initialization and termination (_DLL_InitTerm) */
15/* function. */
16/* */
17/* When called to perform initialization, this sample function */
18/* gets storage for an array of integers, and initializes its */
19/* elements with random integers. At termination time, it */
20/* frees the array. Substitute your own special processing. */
21/*-------------------------------------------------------------*/
22
23
24/* Include files */
25#define INCL_DOSMODULEMGR
26#define INCL_DOSPROCESS
27#include <os2.h>
28#include <stdlib.h>
29#include <stdio.h>
30#include <string.h>
31#include <odin.h>
32#include <misc.h> /*PLF Wed 98-03-18 23:18:29*/
33#include <win32type.h>
34#include <wndclass.h>
35
36extern "C" {
37/*-------------------------------------------------------------------*/
38/* _CRT_init is the C run-time environment initialization function. */
39/* It will return 0 to indicate success and -1 to indicate failure. */
40/*-------------------------------------------------------------------*/
41int CDECL CRT_init(void);
42/*-------------------------------------------------------------------*/
43/* _CRT_term is the C run-time environment termination function. */
44/* It only needs to be called when the C run-time functions are */
45/* statically linked. */
46/*-------------------------------------------------------------------*/
47void CDECL CRT_term(void);
48void CDECL _ctordtorInit( void );
49void CDECL _ctordtorTerm( void );
50}
51
52/*-------------------------------------------------------------------*/
53/* A clean up routine registered with DosExitList must be used if */
54/* runtime calls are required and the runtime is dynamically linked. */
55/* This will guarantee that this clean up routine is run before the */
56/* library DLL is terminated. */
57/*-------------------------------------------------------------------*/
58static void APIENTRY cleanup(ULONG reason);
59
60
61
62/****************************************************************************/
63/* _DLL_InitTerm is the function that gets called by the operating system */
64/* loader when it loads and frees this DLL for each process that accesses */
65/* this DLL. However, it only gets called the first time the DLL is loaded */
66/* and the last time it is freed for a particular process. The system */
67/* linkage convention MUST be used because the operating system loader is */
68/* calling this function. */
69/****************************************************************************/
70unsigned long SYSTEM _DLL_InitTerm(unsigned long hModule, unsigned long
71 ulFlag)
72{
73 size_t i;
74 APIRET rc;
75
76 /*-------------------------------------------------------------------------*/
77 /* If ulFlag is zero then the DLL is being loaded so initialization should */
78 /* be performed. If ulFlag is 1 then the DLL is being freed so */
79 /* termination should be performed. */
80 /*-------------------------------------------------------------------------*/
81
82 switch (ulFlag) {
83 case 0 :
84
85 /*******************************************************************/
86 /* The C run-time environment initialization function must be */
87 /* called before any calls to C run-time functions that are not */
88 /* inlined. */
89 /*******************************************************************/
90
91 if (CRT_init() == -1)
92 return 0UL;
93 _ctordtorInit();
94
95 CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed 98-03-18 05:28:48*/
96 /*******************************************************************/
97 /* A DosExitList routine must be used to clean up if runtime calls */
98 /* are required and the runtime is dynamically linked. */
99 /*******************************************************************/
100
101 rc = DosExitList(0x0000FF00|EXLST_ADD, cleanup);
102 if(rc)
103 return 0UL;
104
105 //SvL: 18-7-'98, Register system window classes (button, listbox etc etc)
106 RegisterSystemClasses(hModule);
107 break;
108 case 1 :
109 break;
110 default :
111 return 0UL;
112 }
113
114 /***********************************************************/
115 /* A non-zero value must be returned to indicate success. */
116 /***********************************************************/
117 return 1UL;
118}
119
120
121static void APIENTRY cleanup(ULONG ulReason)
122{
123 dprintf(("user32 exit\n"));
124 _ctordtorTerm();
125 CRT_term();
126 dprintf(("user32 exit done\n"));
127 DosExitList(EXLST_EXIT, cleanup);
128 return ;
129}
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