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1 //========================================================================
2 // Event linter (event spewer)
3 // Copyright (c) Camilla Löwy <elmindreda@glfw.org>
4 //
5 // This software is provided 'as-is', without any express or implied
6 // warranty. In no event will the authors be held liable for any damages
7 // arising from the use of this software.
8 //
9 // Permission is granted to anyone to use this software for any purpose,
10 // including commercial applications, and to alter it and redistribute it
11 // freely, subject to the following restrictions:
12 //
13 // 1. The origin of this software must not be misrepresented; you must not
14 //    claim that you wrote the original software. If you use this software
15 //    in a product, an acknowledgment in the product documentation would
16 //    be appreciated but is not required.
17 //
18 // 2. Altered source versions must be plainly marked as such, and must not
19 //    be misrepresented as being the original software.
20 //
21 // 3. This notice may not be removed or altered from any source
22 //    distribution.
23 //
24 //========================================================================
25 //
26 // This test hooks every available callback and outputs their arguments
27 //
28 // Log messages go to stdout, error messages to stderr
29 //
30 // Every event also gets a (sequential) number to aid discussion of logs
31 //
32 //========================================================================
33 
34 #define GLAD_GL_IMPLEMENTATION
35 #include <glad/gl.h>
36 #define GLFW_INCLUDE_NONE
37 #include <GLFW/glfw3.h>
38 
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <ctype.h>
42 #include <string.h>
43 #include <locale.h>
44 
45 #include "getopt.h"
46 
47 // Event index
48 static unsigned int counter = 0;
49 
50 typedef struct
51 {
52     GLFWwindow* window;
53     int number;
54     int closeable;
55 } Slot;
56 
usage(void)57 static void usage(void)
58 {
59     printf("Usage: events [-f] [-h] [-n WINDOWS]\n");
60     printf("Options:\n");
61     printf("  -f use full screen\n");
62     printf("  -h show this help\n");
63     printf("  -n the number of windows to create\n");
64 }
65 
get_key_name(int key)66 static const char* get_key_name(int key)
67 {
68     switch (key)
69     {
70         // Printable keys
71         case GLFW_KEY_A:            return "A";
72         case GLFW_KEY_B:            return "B";
73         case GLFW_KEY_C:            return "C";
74         case GLFW_KEY_D:            return "D";
75         case GLFW_KEY_E:            return "E";
76         case GLFW_KEY_F:            return "F";
77         case GLFW_KEY_G:            return "G";
78         case GLFW_KEY_H:            return "H";
79         case GLFW_KEY_I:            return "I";
80         case GLFW_KEY_J:            return "J";
81         case GLFW_KEY_K:            return "K";
82         case GLFW_KEY_L:            return "L";
83         case GLFW_KEY_M:            return "M";
84         case GLFW_KEY_N:            return "N";
85         case GLFW_KEY_O:            return "O";
86         case GLFW_KEY_P:            return "P";
87         case GLFW_KEY_Q:            return "Q";
88         case GLFW_KEY_R:            return "R";
89         case GLFW_KEY_S:            return "S";
90         case GLFW_KEY_T:            return "T";
91         case GLFW_KEY_U:            return "U";
92         case GLFW_KEY_V:            return "V";
93         case GLFW_KEY_W:            return "W";
94         case GLFW_KEY_X:            return "X";
95         case GLFW_KEY_Y:            return "Y";
96         case GLFW_KEY_Z:            return "Z";
97         case GLFW_KEY_1:            return "1";
98         case GLFW_KEY_2:            return "2";
99         case GLFW_KEY_3:            return "3";
100         case GLFW_KEY_4:            return "4";
101         case GLFW_KEY_5:            return "5";
102         case GLFW_KEY_6:            return "6";
103         case GLFW_KEY_7:            return "7";
104         case GLFW_KEY_8:            return "8";
105         case GLFW_KEY_9:            return "9";
106         case GLFW_KEY_0:            return "0";
107         case GLFW_KEY_SPACE:        return "SPACE";
108         case GLFW_KEY_MINUS:        return "MINUS";
109         case GLFW_KEY_EQUAL:        return "EQUAL";
110         case GLFW_KEY_LEFT_BRACKET: return "LEFT BRACKET";
111         case GLFW_KEY_RIGHT_BRACKET: return "RIGHT BRACKET";
112         case GLFW_KEY_BACKSLASH:    return "BACKSLASH";
113         case GLFW_KEY_SEMICOLON:    return "SEMICOLON";
114         case GLFW_KEY_APOSTROPHE:   return "APOSTROPHE";
115         case GLFW_KEY_GRAVE_ACCENT: return "GRAVE ACCENT";
116         case GLFW_KEY_COMMA:        return "COMMA";
117         case GLFW_KEY_PERIOD:       return "PERIOD";
118         case GLFW_KEY_SLASH:        return "SLASH";
119         case GLFW_KEY_WORLD_1:      return "WORLD 1";
120         case GLFW_KEY_WORLD_2:      return "WORLD 2";
121 
122         // Function keys
123         case GLFW_KEY_ESCAPE:       return "ESCAPE";
124         case GLFW_KEY_F1:           return "F1";
125         case GLFW_KEY_F2:           return "F2";
126         case GLFW_KEY_F3:           return "F3";
127         case GLFW_KEY_F4:           return "F4";
128         case GLFW_KEY_F5:           return "F5";
129         case GLFW_KEY_F6:           return "F6";
130         case GLFW_KEY_F7:           return "F7";
131         case GLFW_KEY_F8:           return "F8";
132         case GLFW_KEY_F9:           return "F9";
133         case GLFW_KEY_F10:          return "F10";
134         case GLFW_KEY_F11:          return "F11";
135         case GLFW_KEY_F12:          return "F12";
136         case GLFW_KEY_F13:          return "F13";
137         case GLFW_KEY_F14:          return "F14";
138         case GLFW_KEY_F15:          return "F15";
139         case GLFW_KEY_F16:          return "F16";
140         case GLFW_KEY_F17:          return "F17";
141         case GLFW_KEY_F18:          return "F18";
142         case GLFW_KEY_F19:          return "F19";
143         case GLFW_KEY_F20:          return "F20";
144         case GLFW_KEY_F21:          return "F21";
145         case GLFW_KEY_F22:          return "F22";
146         case GLFW_KEY_F23:          return "F23";
147         case GLFW_KEY_F24:          return "F24";
148         case GLFW_KEY_F25:          return "F25";
149         case GLFW_KEY_UP:           return "UP";
150         case GLFW_KEY_DOWN:         return "DOWN";
151         case GLFW_KEY_LEFT:         return "LEFT";
152         case GLFW_KEY_RIGHT:        return "RIGHT";
153         case GLFW_KEY_LEFT_SHIFT:   return "LEFT SHIFT";
154         case GLFW_KEY_RIGHT_SHIFT:  return "RIGHT SHIFT";
155         case GLFW_KEY_LEFT_CONTROL: return "LEFT CONTROL";
156         case GLFW_KEY_RIGHT_CONTROL: return "RIGHT CONTROL";
157         case GLFW_KEY_LEFT_ALT:     return "LEFT ALT";
158         case GLFW_KEY_RIGHT_ALT:    return "RIGHT ALT";
159         case GLFW_KEY_TAB:          return "TAB";
160         case GLFW_KEY_ENTER:        return "ENTER";
161         case GLFW_KEY_BACKSPACE:    return "BACKSPACE";
162         case GLFW_KEY_INSERT:       return "INSERT";
163         case GLFW_KEY_DELETE:       return "DELETE";
164         case GLFW_KEY_PAGE_UP:      return "PAGE UP";
165         case GLFW_KEY_PAGE_DOWN:    return "PAGE DOWN";
166         case GLFW_KEY_HOME:         return "HOME";
167         case GLFW_KEY_END:          return "END";
168         case GLFW_KEY_KP_0:         return "KEYPAD 0";
169         case GLFW_KEY_KP_1:         return "KEYPAD 1";
170         case GLFW_KEY_KP_2:         return "KEYPAD 2";
171         case GLFW_KEY_KP_3:         return "KEYPAD 3";
172         case GLFW_KEY_KP_4:         return "KEYPAD 4";
173         case GLFW_KEY_KP_5:         return "KEYPAD 5";
174         case GLFW_KEY_KP_6:         return "KEYPAD 6";
175         case GLFW_KEY_KP_7:         return "KEYPAD 7";
176         case GLFW_KEY_KP_8:         return "KEYPAD 8";
177         case GLFW_KEY_KP_9:         return "KEYPAD 9";
178         case GLFW_KEY_KP_DIVIDE:    return "KEYPAD DIVIDE";
179         case GLFW_KEY_KP_MULTIPLY:  return "KEYPAD MULTIPLY";
180         case GLFW_KEY_KP_SUBTRACT:  return "KEYPAD SUBTRACT";
181         case GLFW_KEY_KP_ADD:       return "KEYPAD ADD";
182         case GLFW_KEY_KP_DECIMAL:   return "KEYPAD DECIMAL";
183         case GLFW_KEY_KP_EQUAL:     return "KEYPAD EQUAL";
184         case GLFW_KEY_KP_ENTER:     return "KEYPAD ENTER";
185         case GLFW_KEY_PRINT_SCREEN: return "PRINT SCREEN";
186         case GLFW_KEY_NUM_LOCK:     return "NUM LOCK";
187         case GLFW_KEY_CAPS_LOCK:    return "CAPS LOCK";
188         case GLFW_KEY_SCROLL_LOCK:  return "SCROLL LOCK";
189         case GLFW_KEY_PAUSE:        return "PAUSE";
190         case GLFW_KEY_LEFT_SUPER:   return "LEFT SUPER";
191         case GLFW_KEY_RIGHT_SUPER:  return "RIGHT SUPER";
192         case GLFW_KEY_MENU:         return "MENU";
193 
194         default:                    return "UNKNOWN";
195     }
196 }
197 
get_action_name(int action)198 static const char* get_action_name(int action)
199 {
200     switch (action)
201     {
202         case GLFW_PRESS:
203             return "pressed";
204         case GLFW_RELEASE:
205             return "released";
206         case GLFW_REPEAT:
207             return "repeated";
208     }
209 
210     return "caused unknown action";
211 }
212 
get_button_name(int button)213 static const char* get_button_name(int button)
214 {
215     switch (button)
216     {
217         case GLFW_MOUSE_BUTTON_LEFT:
218             return "left";
219         case GLFW_MOUSE_BUTTON_RIGHT:
220             return "right";
221         case GLFW_MOUSE_BUTTON_MIDDLE:
222             return "middle";
223         default:
224         {
225             static char name[16];
226             snprintf(name, sizeof(name), "%i", button);
227             return name;
228         }
229     }
230 }
231 
get_mods_name(int mods)232 static const char* get_mods_name(int mods)
233 {
234     static char name[512];
235 
236     if (mods == 0)
237         return " no mods";
238 
239     name[0] = '\0';
240 
241     if (mods & GLFW_MOD_SHIFT)
242         strcat(name, " shift");
243     if (mods & GLFW_MOD_CONTROL)
244         strcat(name, " control");
245     if (mods & GLFW_MOD_ALT)
246         strcat(name, " alt");
247     if (mods & GLFW_MOD_SUPER)
248         strcat(name, " super");
249     if (mods & GLFW_MOD_CAPS_LOCK)
250         strcat(name, " capslock-on");
251     if (mods & GLFW_MOD_NUM_LOCK)
252         strcat(name, " numlock-on");
253 
254     return name;
255 }
256 
encode_utf8(char * s,unsigned int ch)257 static size_t encode_utf8(char* s, unsigned int ch)
258 {
259     size_t count = 0;
260 
261     if (ch < 0x80)
262         s[count++] = (char) ch;
263     else if (ch < 0x800)
264     {
265         s[count++] = (ch >> 6) | 0xc0;
266         s[count++] = (ch & 0x3f) | 0x80;
267     }
268     else if (ch < 0x10000)
269     {
270         s[count++] = (ch >> 12) | 0xe0;
271         s[count++] = ((ch >> 6) & 0x3f) | 0x80;
272         s[count++] = (ch & 0x3f) | 0x80;
273     }
274     else if (ch < 0x110000)
275     {
276         s[count++] = (ch >> 18) | 0xf0;
277         s[count++] = ((ch >> 12) & 0x3f) | 0x80;
278         s[count++] = ((ch >> 6) & 0x3f) | 0x80;
279         s[count++] = (ch & 0x3f) | 0x80;
280     }
281 
282     return count;
283 }
284 
error_callback(int error,const char * description)285 static void error_callback(int error, const char* description)
286 {
287     fprintf(stderr, "Error: %s\n", description);
288 }
289 
window_pos_callback(GLFWwindow * window,int x,int y)290 static void window_pos_callback(GLFWwindow* window, int x, int y)
291 {
292     Slot* slot = glfwGetWindowUserPointer(window);
293     printf("%08x to %i at %0.3f: Window position: %i %i\n",
294            counter++, slot->number, glfwGetTime(), x, y);
295 }
296 
window_size_callback(GLFWwindow * window,int width,int height)297 static void window_size_callback(GLFWwindow* window, int width, int height)
298 {
299     Slot* slot = glfwGetWindowUserPointer(window);
300     printf("%08x to %i at %0.3f: Window size: %i %i\n",
301            counter++, slot->number, glfwGetTime(), width, height);
302 }
303 
framebuffer_size_callback(GLFWwindow * window,int width,int height)304 static void framebuffer_size_callback(GLFWwindow* window, int width, int height)
305 {
306     Slot* slot = glfwGetWindowUserPointer(window);
307     printf("%08x to %i at %0.3f: Framebuffer size: %i %i\n",
308            counter++, slot->number, glfwGetTime(), width, height);
309 }
310 
window_content_scale_callback(GLFWwindow * window,float xscale,float yscale)311 static void window_content_scale_callback(GLFWwindow* window, float xscale, float yscale)
312 {
313     Slot* slot = glfwGetWindowUserPointer(window);
314     printf("%08x to %i at %0.3f: Window content scale: %0.3f %0.3f\n",
315            counter++, slot->number, glfwGetTime(), xscale, yscale);
316 }
317 
window_close_callback(GLFWwindow * window)318 static void window_close_callback(GLFWwindow* window)
319 {
320     Slot* slot = glfwGetWindowUserPointer(window);
321     printf("%08x to %i at %0.3f: Window close\n",
322            counter++, slot->number, glfwGetTime());
323 
324     if (!slot->closeable)
325     {
326         printf("(( closing is disabled, press %s to re-enable )\n",
327                glfwGetKeyName(GLFW_KEY_C, 0));
328     }
329 
330     glfwSetWindowShouldClose(window, slot->closeable);
331 }
332 
window_refresh_callback(GLFWwindow * window)333 static void window_refresh_callback(GLFWwindow* window)
334 {
335     Slot* slot = glfwGetWindowUserPointer(window);
336     printf("%08x to %i at %0.3f: Window refresh\n",
337            counter++, slot->number, glfwGetTime());
338 
339     glfwMakeContextCurrent(window);
340     glClear(GL_COLOR_BUFFER_BIT);
341     glfwSwapBuffers(window);
342 }
343 
window_focus_callback(GLFWwindow * window,int focused)344 static void window_focus_callback(GLFWwindow* window, int focused)
345 {
346     Slot* slot = glfwGetWindowUserPointer(window);
347     printf("%08x to %i at %0.3f: Window %s\n",
348            counter++, slot->number, glfwGetTime(),
349            focused ? "focused" : "defocused");
350 }
351 
window_iconify_callback(GLFWwindow * window,int iconified)352 static void window_iconify_callback(GLFWwindow* window, int iconified)
353 {
354     Slot* slot = glfwGetWindowUserPointer(window);
355     printf("%08x to %i at %0.3f: Window was %s\n",
356            counter++, slot->number, glfwGetTime(),
357            iconified ? "iconified" : "uniconified");
358 }
359 
window_maximize_callback(GLFWwindow * window,int maximized)360 static void window_maximize_callback(GLFWwindow* window, int maximized)
361 {
362     Slot* slot = glfwGetWindowUserPointer(window);
363     printf("%08x to %i at %0.3f: Window was %s\n",
364            counter++, slot->number, glfwGetTime(),
365            maximized ? "maximized" : "unmaximized");
366 }
367 
mouse_button_callback(GLFWwindow * window,int button,int action,int mods)368 static void mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
369 {
370     Slot* slot = glfwGetWindowUserPointer(window);
371     printf("%08x to %i at %0.3f: Mouse button %i (%s) (with%s) was %s\n",
372            counter++, slot->number, glfwGetTime(), button,
373            get_button_name(button),
374            get_mods_name(mods),
375            get_action_name(action));
376 }
377 
cursor_position_callback(GLFWwindow * window,double x,double y)378 static void cursor_position_callback(GLFWwindow* window, double x, double y)
379 {
380     Slot* slot = glfwGetWindowUserPointer(window);
381     printf("%08x to %i at %0.3f: Cursor position: %f %f\n",
382            counter++, slot->number, glfwGetTime(), x, y);
383 }
384 
cursor_enter_callback(GLFWwindow * window,int entered)385 static void cursor_enter_callback(GLFWwindow* window, int entered)
386 {
387     Slot* slot = glfwGetWindowUserPointer(window);
388     printf("%08x to %i at %0.3f: Cursor %s window\n",
389            counter++, slot->number, glfwGetTime(),
390            entered ? "entered" : "left");
391 }
392 
scroll_callback(GLFWwindow * window,double x,double y)393 static void scroll_callback(GLFWwindow* window, double x, double y)
394 {
395     Slot* slot = glfwGetWindowUserPointer(window);
396     printf("%08x to %i at %0.3f: Scroll: %0.3f %0.3f\n",
397            counter++, slot->number, glfwGetTime(), x, y);
398 }
399 
key_callback(GLFWwindow * window,int key,int scancode,int action,int mods)400 static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
401 {
402     Slot* slot = glfwGetWindowUserPointer(window);
403 
404     if (key == GLFW_KEY_UNKNOWN)
405     {
406         printf("%08x to %i at %0.3f: Key (%s) Scancode 0x%04x (with%s) was %s\n",
407                 counter++, slot->number, glfwGetTime(),
408                 get_key_name(key), scancode,
409                 get_mods_name(mods),
410                 get_action_name(action));
411     }
412     else
413     {
414         const char* name = glfwGetKeyName(key, scancode);
415         if (name)
416         {
417             printf("%08x to %i at %0.3f: Key 0x%04x (%s) Scancode 0x%04x Name %s (with%s) was %s\n",
418                    counter++, slot->number, glfwGetTime(),
419                    key, get_key_name(key), scancode, name,
420                    get_mods_name(mods),
421                    get_action_name(action));
422         }
423         else
424         {
425             printf("%08x to %i at %0.3f: Key 0x%04x (%s) Scancode 0x%04x (with%s) was %s\n",
426                    counter++, slot->number, glfwGetTime(),
427                    key, get_key_name(key), scancode,
428                    get_mods_name(mods),
429                    get_action_name(action));
430         }
431     }
432 
433     if (action != GLFW_PRESS)
434         return;
435 
436     switch (key)
437     {
438         case GLFW_KEY_C:
439         {
440             slot->closeable = !slot->closeable;
441 
442             printf("(( closing %s ))\n", slot->closeable ? "enabled" : "disabled");
443             break;
444         }
445 
446         case GLFW_KEY_L:
447         {
448             const int state = glfwGetInputMode(window, GLFW_LOCK_KEY_MODS);
449             glfwSetInputMode(window, GLFW_LOCK_KEY_MODS, !state);
450 
451             printf("(( lock key mods %s ))\n", !state ? "enabled" : "disabled");
452             break;
453         }
454     }
455 }
456 
char_callback(GLFWwindow * window,unsigned int codepoint)457 static void char_callback(GLFWwindow* window, unsigned int codepoint)
458 {
459     Slot* slot = glfwGetWindowUserPointer(window);
460     char string[5] = "";
461 
462     encode_utf8(string, codepoint);
463     printf("%08x to %i at %0.3f: Character 0x%08x (%s) input\n",
464            counter++, slot->number, glfwGetTime(), codepoint, string);
465 }
466 
drop_callback(GLFWwindow * window,int count,const char * paths[])467 static void drop_callback(GLFWwindow* window, int count, const char* paths[])
468 {
469     int i;
470     Slot* slot = glfwGetWindowUserPointer(window);
471 
472     printf("%08x to %i at %0.3f: Drop input\n",
473            counter++, slot->number, glfwGetTime());
474 
475     for (i = 0;  i < count;  i++)
476         printf("  %i: \"%s\"\n", i, paths[i]);
477 }
478 
monitor_callback(GLFWmonitor * monitor,int event)479 static void monitor_callback(GLFWmonitor* monitor, int event)
480 {
481     if (event == GLFW_CONNECTED)
482     {
483         int x, y, widthMM, heightMM;
484         const GLFWvidmode* mode = glfwGetVideoMode(monitor);
485 
486         glfwGetMonitorPos(monitor, &x, &y);
487         glfwGetMonitorPhysicalSize(monitor, &widthMM, &heightMM);
488 
489         printf("%08x at %0.3f: Monitor %s (%ix%i at %ix%i, %ix%i mm) was connected\n",
490                counter++,
491                glfwGetTime(),
492                glfwGetMonitorName(monitor),
493                mode->width, mode->height,
494                x, y,
495                widthMM, heightMM);
496     }
497     else if (event == GLFW_DISCONNECTED)
498     {
499         printf("%08x at %0.3f: Monitor %s was disconnected\n",
500                counter++,
501                glfwGetTime(),
502                glfwGetMonitorName(monitor));
503     }
504 }
505 
joystick_callback(int jid,int event)506 static void joystick_callback(int jid, int event)
507 {
508     if (event == GLFW_CONNECTED)
509     {
510         int axisCount, buttonCount, hatCount;
511 
512         glfwGetJoystickAxes(jid, &axisCount);
513         glfwGetJoystickButtons(jid, &buttonCount);
514         glfwGetJoystickHats(jid, &hatCount);
515 
516         printf("%08x at %0.3f: Joystick %i (%s) was connected with %i axes, %i buttons, and %i hats\n",
517                counter++, glfwGetTime(),
518                jid,
519                glfwGetJoystickName(jid),
520                axisCount,
521                buttonCount,
522                hatCount);
523 
524         if (glfwJoystickIsGamepad(jid))
525         {
526             printf("  Joystick %i (%s) has a gamepad mapping (%s)\n",
527                    jid,
528                    glfwGetJoystickGUID(jid),
529                    glfwGetGamepadName(jid));
530         }
531         else
532         {
533             printf("  Joystick %i (%s) has no gamepad mapping\n",
534                    jid,
535                    glfwGetJoystickGUID(jid));
536         }
537     }
538     else
539     {
540         printf("%08x at %0.3f: Joystick %i was disconnected\n",
541                counter++, glfwGetTime(), jid);
542     }
543 }
544 
main(int argc,char ** argv)545 int main(int argc, char** argv)
546 {
547     Slot* slots;
548     GLFWmonitor* monitor = NULL;
549     int ch, i, width, height, count = 1;
550 
551     glfwSetErrorCallback(error_callback);
552 
553     if (!glfwInit())
554         exit(EXIT_FAILURE);
555 
556     printf("Library initialized\n");
557 
558     glfwSetMonitorCallback(monitor_callback);
559     glfwSetJoystickCallback(joystick_callback);
560 
561     while ((ch = getopt(argc, argv, "hfn:")) != -1)
562     {
563         switch (ch)
564         {
565             case 'h':
566                 usage();
567                 exit(EXIT_SUCCESS);
568 
569             case 'f':
570                 monitor = glfwGetPrimaryMonitor();
571                 break;
572 
573             case 'n':
574                 count = (int) strtoul(optarg, NULL, 10);
575                 break;
576 
577             default:
578                 usage();
579                 exit(EXIT_FAILURE);
580         }
581     }
582 
583     if (monitor)
584     {
585         const GLFWvidmode* mode = glfwGetVideoMode(monitor);
586 
587         glfwWindowHint(GLFW_REFRESH_RATE, mode->refreshRate);
588         glfwWindowHint(GLFW_RED_BITS, mode->redBits);
589         glfwWindowHint(GLFW_GREEN_BITS, mode->greenBits);
590         glfwWindowHint(GLFW_BLUE_BITS, mode->blueBits);
591 
592         width = mode->width;
593         height = mode->height;
594     }
595     else
596     {
597         width  = 640;
598         height = 480;
599     }
600 
601     slots = calloc(count, sizeof(Slot));
602 
603     for (i = 0;  i < count;  i++)
604     {
605         char title[128];
606 
607         slots[i].closeable = GLFW_TRUE;
608         slots[i].number = i + 1;
609 
610         snprintf(title, sizeof(title), "Event Linter (Window %i)", slots[i].number);
611 
612         if (monitor)
613         {
614             printf("Creating full screen window %i (%ix%i on %s)\n",
615                    slots[i].number,
616                    width, height,
617                    glfwGetMonitorName(monitor));
618         }
619         else
620         {
621             printf("Creating windowed mode window %i (%ix%i)\n",
622                    slots[i].number,
623                    width, height);
624         }
625 
626         slots[i].window = glfwCreateWindow(width, height, title, monitor, NULL);
627         if (!slots[i].window)
628         {
629             free(slots);
630             glfwTerminate();
631             exit(EXIT_FAILURE);
632         }
633         glfwSetInputMode(slots[i].window, GLFW_UNLIMITED_MOUSE_BUTTONS, GLFW_TRUE);
634 
635         glfwSetWindowUserPointer(slots[i].window, slots + i);
636 
637         glfwSetWindowPosCallback(slots[i].window, window_pos_callback);
638         glfwSetWindowSizeCallback(slots[i].window, window_size_callback);
639         glfwSetFramebufferSizeCallback(slots[i].window, framebuffer_size_callback);
640         glfwSetWindowContentScaleCallback(slots[i].window, window_content_scale_callback);
641         glfwSetWindowCloseCallback(slots[i].window, window_close_callback);
642         glfwSetWindowRefreshCallback(slots[i].window, window_refresh_callback);
643         glfwSetWindowFocusCallback(slots[i].window, window_focus_callback);
644         glfwSetWindowIconifyCallback(slots[i].window, window_iconify_callback);
645         glfwSetWindowMaximizeCallback(slots[i].window, window_maximize_callback);
646         glfwSetMouseButtonCallback(slots[i].window, mouse_button_callback);
647         glfwSetCursorPosCallback(slots[i].window, cursor_position_callback);
648         glfwSetCursorEnterCallback(slots[i].window, cursor_enter_callback);
649         glfwSetScrollCallback(slots[i].window, scroll_callback);
650         glfwSetKeyCallback(slots[i].window, key_callback);
651         glfwSetCharCallback(slots[i].window, char_callback);
652         glfwSetDropCallback(slots[i].window, drop_callback);
653 
654         glfwMakeContextCurrent(slots[i].window);
655         gladLoadGL(glfwGetProcAddress);
656         glfwSwapBuffers(slots[i].window);
657     }
658 
659     printf("Main loop starting\n");
660 
661     for (;;)
662     {
663         for (i = 0;  i < count;  i++)
664         {
665             if (glfwWindowShouldClose(slots[i].window))
666                 break;
667         }
668 
669         if (i < count)
670             break;
671 
672         glfwWaitEvents();
673 
674         // Workaround for an issue with msvcrt and mintty
675         fflush(stdout);
676     }
677 
678     free(slots);
679     glfwTerminate();
680     exit(EXIT_SUCCESS);
681 }
682 
683