source: trunk/src/comctl32/initterm.cpp@ 50

Last change on this file since 50 was 50, checked in by sandervl, 26 years ago

* empty log message *

File size: 5.2 KB
Line 
1/*
2 * COMDLG32 DLL entry point
3 *
4 * Copyright 1998 Sander van Leeuwen
5 * Copyright 1998 Peter Fitzsimmons
6 * Copyright 1999 Achim Hasenmueller
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 *
11 */
12
13/*-------------------------------------------------------------*/
14/* INITERM.C -- Source for a custom dynamic link library */
15/* initialization and termination (_DLL_InitTerm) */
16/* function. */
17/* */
18/* When called to perform initialization, this sample function */
19/* gets storage for an array of integers, and initializes its */
20/* elements with random integers. At termination time, it */
21/* frees the array. Substitute your own special processing. */
22/*-------------------------------------------------------------*/
23
24
25/* Include files */
26#define INCL_DOSMODULEMGR
27#define INCL_DOSPROCESS
28#include <os2.h>
29#include <stdlib.h>
30#include <stdio.h>
31#include <string.h>
32#include <misc.h> /*PLF Wed 98-03-18 23:18:29*/
33
34extern "C" {
35/*-------------------------------------------------------------------*/
36/* _CRT_init is the C run-time environment initialization function. */
37/* It will return 0 to indicate success and -1 to indicate failure. */
38/*-------------------------------------------------------------------*/
39int CDECL CRT_init(void);
40/*-------------------------------------------------------------------*/
41/* _CRT_term is the C run-time environment termination function. */
42/* It only needs to be called when the C run-time functions are */
43/* statically linked. */
44/*-------------------------------------------------------------------*/
45void CDECL CRT_term(void);
46void CDECL _ctordtorInit( void );
47void CDECL _ctordtorTerm( void );
48}
49
50void CDECL RegisterCOMCTL32WindowClasses(unsigned long hinstDLL);
51void CDECL UnregisterCOMCTL32WindowClasses(void);
52
53/*-------------------------------------------------------------------*/
54/* A clean up routine registered with DosExitList must be used if */
55/* runtime calls are required and the runtime is dynamically linked. */
56/* This will guarantee that this clean up routine is run before the */
57/* library DLL is terminated. */
58/*-------------------------------------------------------------------*/
59static void APIENTRY cleanup(ULONG reason);
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 /*******************************************************************/
98 /* A DosExitList routine must be used to clean up if runtime calls */
99 /* are required and the runtime is dynamically linked. */
100 /*******************************************************************/
101
102 rc = DosExitList(0x0000FF00|EXLST_ADD, cleanup);
103 if(rc)
104 return 0UL;
105
106 /* register Win32 window classes implemented in this DLL */
107 RegisterCOMCTL32WindowClasses(hModule);
108
109 break;
110 case 1 :
111 /* unregister Win32 window classes */
112 UnregisterCOMCTL32WindowClasses();
113 break;
114 default :
115 return 0UL;
116 }
117
118 /***********************************************************/
119 /* A non-zero value must be returned to indicate success. */
120 /***********************************************************/
121 return 1UL;
122}
123
124
125static void APIENTRY cleanup(ULONG ulReason)
126{
127 _ctordtorTerm();
128 CRT_term();
129 DosExitList(EXLST_EXIT, cleanup);
130 return ;
131}
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