1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/** \file
* \brief Windows Message Loop
*
* See Copyright Notice in "iup.h"
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include "iup.h"
#include "iupcbs.h"
#include "iup_object.h"
#include "iup_attrib.h"
#include "iup_str.h"
#include "iupwin_drv.h"
#include "iupwin_handle.h"
static IFidle win_idle_cb = NULL;
static int win_main_loop = 0;
void iupdrvSetIdleFunction(Icallback f)
{
win_idle_cb = (IFidle)f;
}
void IupExitLoop(void)
{
PostQuitMessage(0);
}
static int winLoopProcessMessage(MSG* msg)
{
if (msg->message == WM_QUIT) /* IUP_CLOSE returned in a callback or IupHide in a popup dialog or all dialogs closed */
return IUP_CLOSE;
else
{
TranslateMessage(msg);
DispatchMessage(msg);
return IUP_DEFAULT;
}
}
int IupMainLoopLevel(void)
{
return win_main_loop;
}
int IupMainLoop(void)
{
MSG msg;
int ret;
win_main_loop++;
do
{
if (win_idle_cb)
{
ret = 1;
if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
{
if (winLoopProcessMessage(&msg) == IUP_CLOSE)
{
win_main_loop--;
return IUP_CLOSE;
}
}
else
{
int ret = win_idle_cb();
if (ret == IUP_CLOSE)
{
win_idle_cb = NULL;
win_main_loop--;
return IUP_CLOSE;
}
if (ret == IUP_IGNORE)
win_idle_cb = NULL;
}
}
else
{
ret = GetMessage(&msg, NULL, 0, 0);
if (ret == -1) /* error */
{
win_main_loop--;
return IUP_ERROR;
}
if (ret == 0 || /* WM_QUIT */
winLoopProcessMessage(&msg) == IUP_CLOSE) /* ret != 0 */
{
win_main_loop--;
return IUP_NOERROR;
}
}
} while (ret);
win_main_loop--;
return IUP_NOERROR;
}
int IupLoopStepWait(void)
{
MSG msg;
int ret = GetMessage(&msg, NULL, 0, 0);
if (ret == -1) /* error */
return IUP_ERROR;
if (ret == 0 || /* WM_QUIT */
winLoopProcessMessage(&msg) == IUP_CLOSE) /* ret != 0 */
return IUP_CLOSE;
return IUP_DEFAULT;
}
int IupLoopStep(void)
{
MSG msg;
if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
return winLoopProcessMessage(&msg);
return IUP_DEFAULT;
}
void IupFlush(void)
{
int post_quit = 0;
MSG msg;
while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
{
if (winLoopProcessMessage(&msg) == IUP_CLOSE)
{
post_quit = 1;
break;
}
}
/* re post the quit message if still inside MainLoop */
if (post_quit && win_main_loop>0)
PostQuitMessage(0);
}
|
