fltk-sys 1.5.22

Rust bindings for the FLTK GUI library
Documentation
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
#include <FL/Fl.H> // Has to be the first include!

#include <cfltk/cfl.h>

#include <FL/Enumerations.H>
#include <FL/Fl_Widget.H>
#include <FL/Fl_Window.H>
#include <FL/platform.H>

#ifndef LOCK
#define LOCK(x)                                                                \
    Fl::lock();                                                                \
    x;                                                                         \
    Fl::unlock();
#endif

#ifdef __ANDROID__
#include <queue>
#include <thread>

class Buffer {
  private:
    using item = void *;
    std::queue<item> queue_;
    std::mutex m_;
    std::condition_variable cv_;

  public:
    void send(const item &i) {
        std::unique_lock<std::mutex> lock(m_);
        queue_.push(i);
        cv_.notify_one();
    }

    item recv(void) {
        if (!queue_.empty()) {
            std::unique_lock<std::mutex> lock(m_);
            cv_.wait(lock, [&](void) { return !queue_.empty(); });
            item result = queue_.front();
            queue_.pop();
            return result;
        } else {
            return nullptr;
        }
    }
} android_buffer;
#endif

int Fl_run(void) {
    return Fl::run();
}

int Fl_check(void) {
    return Fl::check();
}

int Fl_ready(void) {
    return Fl::ready();
}

void Fl_release(void) {
    Fl::release();
}

int Fl_reload_scheme(void) {
    return Fl::reload_scheme();
}

int Fl_menu_linespacing(void) {
    return Fl::menu_linespacing();
}

void Fl_set_menu_linespacing(int H) {
    Fl::menu_linespacing(H);
}

int Fl_lock(void) {
    return Fl::lock();
}

void Fl_unlock(void) {
    Fl::unlock();
}

int Fl_awake_callback(Fl_Awake_Handler handler, void *data) {
    return Fl::awake(handler, data);
}

void Fl_awake(void) {
    Fl::awake();
}

void Fl_set_scrollbar_size(int v) {
    Fl::scrollbar_size(v);
}

int Fl_scrollbar_size(void) {
    return Fl::scrollbar_size();
}

void *Fl_grab(void) {
    return Fl::grab();
}

void Fl_set_grab(void *v) {
    Fl::grab((Fl_Window *)v);
}

int Fl_event(void) {
    return Fl::event();
}

int Fl_event_key(void) {
    return Fl::event_key();
}

int Fl_event_original_key(void) {
    return Fl::event_original_key();
}

int Fl_event_key_down(int key) {
    return Fl::event_key(key);
}

const char *Fl_event_text(void) {
    return Fl::event_text();
}

int Fl_event_button(void) {
    return Fl::event_button();
}

int Fl_event_clicks(void) {
    return Fl::event_clicks();
}

int Fl_event_x(void) {
    return Fl::event_x();
}

int Fl_event_y(void) {
    return Fl::event_y();
}

int Fl_event_x_root(void) {
    return Fl::event_x_root();
}

int Fl_event_y_root(void) {
    return Fl::event_y_root();
}
int Fl_event_dx(void) {
    return Fl::event_dx();
}

int Fl_event_dy(void) {
    return Fl::event_dy();
}

void Fl_get_mouse(int *x, int *y) {
    Fl::get_mouse(*x, *y);
}

int Fl_event_is_click(void) {
    return Fl::event_is_click();
}

int Fl_event_length(void) {
    return Fl::event_length();
}

int Fl_event_state(void) {
    return Fl::event_state();
}

int Fl_w(void) {
    return Fl::w();
}

int Fl_h(void) {
    return Fl::h();
}

int Fl_screen_x(void) {
    return Fl::x();
}

int Fl_screen_y(void) {
    return Fl::y();
}

int Fl_screen_h(void) {
    return Fl::h();
}

int Fl_screen_w(void) {
    return Fl::w();
}

int Fl_compose(int *del) {
    int temp = 0;
    auto ret = Fl::compose(temp);
    *del     = temp;
    return ret;
}

void Fl_compose_reset(void) {
    Fl::compose_reset();
}

int Fl_compose_state(void) {
    return Fl::compose_state;
}

void Fl_copy(const char *stuff, int len, int destination) {
    Fl::copy(stuff, len, destination);
}

void Fl_paste_text(Fl_Widget *widget, int src) {
    Fl::paste(*widget, src, Fl::clipboard_plain_text);
}

void Fl_paste_image(Fl_Widget *widget, int src) {
    Fl::paste(*widget, src, Fl::clipboard_image);
}

int Fl_set_scheme(const char *scheme) {
    return Fl::scheme(scheme);
}

int Fl_scheme(void) {
    const char *v = Fl::scheme();
    if (!strcmp(v, "base")) {
        return 0;
    } else if (!strcmp(v, "gtk+")) {
        return 1;
    } else if (!strcmp(v, "gleam")) {
        return 2;
    } else if (!strcmp(v, "oxy")) {
        return 3;
    } else {
        return 4;
    }
}

const char *Fl_scheme_string(void) {
    return Fl::scheme();
}

int Fl_visible_focus(void) {
    return Fl::visible_focus();
}

void Fl_set_visible_focus(int f) {
    Fl::visible_focus(f);
}

void Fl_set_box_type(int o, int n) {
    Fl::set_boxtype((Fl_Boxtype)o, (Fl_Boxtype)n);
}

int Fl_box_shadow_width(void) {
    return Fl::box_shadow_width();
}

void Fl_set_box_shadow_width(int W) {
    Fl::box_shadow_width(W);
}

int Fl_box_border_radius_max(void) {
    return Fl::box_border_radius_max();
}

void Fl_set_box_border_radius_max(int R) {
    Fl::box_border_radius_max(R);
}

unsigned int
Fl_get_rgb_color(unsigned char r, unsigned char g, unsigned char b) {
    return fl_rgb_color(r, g, b);
}

void Fl_set_color(
    unsigned int c, unsigned char r, unsigned char g, unsigned char b
) {
    Fl::set_color(c, r, g, b);
}

void Fl_set_color_with_alpha(
    unsigned int c,
    unsigned char r,
    unsigned char g,
    unsigned char b,
    unsigned char a
) {
    Fl::set_color(c, r, g, b, a);
}

const char *Fl_get_font(int idx) {
    return Fl::get_font(idx);
}

const char *Fl_get_font_name(int idx) {
    return Fl::get_font_name(idx);
}

const char *Fl_get_font_name2(int idx, int *attributes) {
    return Fl::get_font_name(idx, attributes);
}

int Fl_get_font_sizes(int font, int **sizep) {
    return Fl::get_font_sizes(font, *sizep);
}

int Fl_set_fonts(const char *c) {
    return Fl::set_fonts(c);
}

void Fl_set_font(int o, int n) {
    Fl::set_font(o, n);
}

void Fl_set_font2(int o, const char *n) {
    Fl::set_font(o, n);
}

void Fl_set_font_size(int sz) {
    LOCK(FL_NORMAL_SIZE = sz)
}

int Fl_font_size(void) {
    LOCK(int ret = FL_NORMAL_SIZE);
    return ret;
}

void Fl_add_handler(int (*ev_handler)(int ev)) {
    LOCK(Fl::add_handler(ev_handler));
}

void Fl_open_display(void) {
    fl_open_display();
}

void Fl_close_display(void) {
    fl_close_display();
}

int Fl_box_dx(int boxtype) {
    return Fl::box_dx((Fl_Boxtype)boxtype);
}

int Fl_box_dy(int boxtype) {
    return Fl::box_dy((Fl_Boxtype)boxtype);
}

int Fl_box_dw(int boxtype) {
    return Fl::box_dw((Fl_Boxtype)boxtype);
}

int Fl_box_dh(int boxtype) {
    return Fl::box_dh((Fl_Boxtype)boxtype);
}

void Fl_awake_msg(void *msg) {
#ifndef __ANDROID__
    LOCK(Fl::awake(msg));
#else
    android_buffer.send(msg);
#endif
}

void *Fl_thread_msg(void) {
#ifndef __ANDROID__
    return Fl::thread_message();
#else
    return android_buffer.recv();
#endif
}

int Fl_wait(void) {
    return Fl::wait();
}

double Fl_wait_for(double dur) {
    return Fl::wait(dur);
}

void Fl_add_timeout(double t, void (*timeout_h)(void *), void *data) {
    LOCK(Fl::add_timeout(t, timeout_h, data));
}

void Fl_repeat_timeout(double t, void (*timeout_h)(void *), void *data) {
    LOCK(Fl::repeat_timeout(t, timeout_h, data));
}

void Fl_remove_timeout(void (*timeout_h)(void *), void *data) {
    LOCK(Fl::remove_timeout(timeout_h, data));
}

int Fl_has_timeout(void (*cb)(void *), void *arg) {
    LOCK(auto ret = Fl::has_timeout(cb, arg));
    return ret;
}

int Fl_dnd(void) {
    return Fl::dnd();
}

void *Fl_first_window(void) {
    return (void *)Fl::first_window();
}

void *Fl_next_window(const void *prev) {
    return (void *)Fl::next_window((Fl_Window *)prev);
}

void *Fl_modal(void) {
    return (void *)Fl::modal();
}

int Fl_should_program_quit(void) {
    return Fl::program_should_quit();
}

void Fl_program_should_quit(int flag) {
    Fl::program_should_quit(flag);
}

int Fl_event_inside(int x, int y, int w, int h) {
    return Fl::event_inside(x, y, w, h);
}

Fl_Widget *Fl_belowmouse(void) {
    return Fl::belowmouse();
}

void Fl_set_belowmouse(Fl_Widget *w) {
    Fl::belowmouse(w);
}

void Fl_delete_widget(Fl_Widget *w) {
    Fl::delete_widget(w);
}

Fl_Widget_Tracker *Fl_Widget_Tracker_new(Fl_Widget *w) {
    return new Fl_Widget_Tracker(w);
}

int Fl_Widget_Tracker_deleted(Fl_Widget_Tracker *self) {
    LOCK(auto ret = self->deleted());
    return ret;
}

void Fl_Widget_Tracker_delete(Fl_Widget_Tracker *self) {
    delete self;
}

void Fl_init_all(void) {
    fl_define_FL_ROUND_UP_BOX();
    fl_define_FL_SHADOW_BOX();
    fl_define_FL_ROUNDED_BOX();
    fl_define_FL_RFLAT_BOX();
    fl_define_FL_RSHADOW_BOX();
    fl_define_FL_DIAMOND_BOX();
    fl_define_FL_OVAL_BOX();
    fl_define_FL_PLASTIC_UP_BOX();
    fl_define_FL_GTK_UP_BOX();
    fl_define_FL_GLEAM_UP_BOX();
    fl_define_FL_SHADOW_LABEL();
    fl_define_FL_ENGRAVED_LABEL();
    fl_define_FL_EMBOSSED_LABEL();
    fl_define_FL_MULTI_LABEL();
    fl_define_FL_ICON_LABEL();
    fl_define_FL_IMAGE_LABEL();
    Fl::use_high_res_GL(1);
}

void Fl_redraw(void) {
    Fl::redraw();
}

int Fl_event_shift(void) {
    return Fl::event_shift();
}

int Fl_event_ctrl(void) {
    return Fl::event_ctrl();
}

int Fl_event_command(void) {
    return Fl::event_command();
}

int Fl_event_alt(void) {
    return Fl::event_alt();
}

void Fl_set_damage(int flag) {
    Fl::damage(flag);
}

int Fl_damage(void) {
    return Fl::damage();
}

int Fl_visual(int mode) {
    return Fl::visual(mode);
}

void Fl_own_colormap(void) {
    Fl::own_colormap();
}

Fl_Widget *Fl_pushed(void) {
    return Fl::pushed();
}

Fl_Widget *Fl_focus(void) {
    return Fl::focus();
}

void Fl_set_focus(void *wid) {
    Fl::focus((Fl_Widget *)wid);
}

double Fl_version(void) {
    return Fl::version();
}

int Fl_api_version(void) {
    return Fl::api_version();
}

int Fl_abi_version(void) {
    return Fl::abi_version();
}

void Fl_foreground(unsigned char r, unsigned char g, unsigned char b) {
    Fl::foreground(r, g, b);
}

void Fl_background(unsigned char r, unsigned char g, unsigned char b) {
    Fl::background(r, g, b);
}

void Fl_background2(unsigned char r, unsigned char g, unsigned char b) {
    Fl::background2(r, g, b);
}

void Fl_selection_color(unsigned char r, unsigned char g, unsigned char b) {
    Fl::set_color(FL_SELECTION_COLOR, r, g, b);
}

void Fl_inactive_color(unsigned char r, unsigned char g, unsigned char b) {
    Fl::set_color(FL_INACTIVE_COLOR, r, g, b);
}

void Fl_get_system_colors(void) {
    Fl::get_system_colors();
}

int Fl_handle(int ev, void *win) {
    LOCK(auto ret = Fl::handle(ev, (Fl_Window *)win));
    return ret;
}

int Fl_handle_(int ev, void *win) {
    LOCK(auto ret = Fl::handle_(ev, (Fl_Window *)win));
    return ret;
}

void Fl_add_idle(void (*cb)(void *), void *arg) {
    LOCK(Fl::add_idle(cb, arg));
}

int Fl_has_idle(void (*cb)(void *), void *arg) {
    LOCK(auto ret = Fl::has_idle(cb, arg));
    return ret;
}

void Fl_remove_idle(void (*cb)(void *), void *arg) {
    LOCK(Fl::remove_idle(cb, arg));
}

void Fl_add_check(void (*cb)(void *), void *arg) {
    LOCK(Fl::add_check(cb, arg));
}

int Fl_has_check(void (*cb)(void *), void *arg) {
    LOCK(auto ret = Fl::has_check(cb, arg));
    return ret;
}

void Fl_remove_check(void (*cb)(void *), void *arg) {
    LOCK(Fl::remove_check(cb, arg));
}

void Fl_flush(void) {
    Fl::flush();
}

void Fl_set_screen_scale(int n, float val) {
    Fl::screen_scale(n, val);
}

float Fl_screen_scale(int n) {
    return Fl::screen_scale(n);
}

int Fl_screen_scaling_supported(void) {
    return Fl::screen_scaling_supported();
}

int Fl_screen_count(void) {
    return Fl::screen_count();
}

int Fl_screen_num(int x, int y) {
    return Fl::screen_num(x, y);
}

int Fl_screen_num_inside(int x, int y, int w, int h) {
    return Fl::screen_num(x, y, w, h);
}

void Fl_screen_xywh(int *X, int *Y, int *W, int *H, int n) {
    Fl::screen_xywh(*X, *Y, *W, *H, n);
}

void Fl_screen_xywh_at(int *X, int *Y, int *W, int *H, int mx, int my) {
    Fl::screen_xywh(*X, *Y, *W, *H, mx, my);
}

void Fl_screen_xywh_inside(
    int *X, int *Y, int *W, int *H, int mx, int my, int mw, int mh
) {
    Fl::screen_xywh(*X, *Y, *W, *H, mx, my, mw, mh);
}

void Fl_screen_xywh_mouse(int *X, int *Y, int *W, int *H) {
    Fl::screen_xywh(*X, *Y, *W, *H);
}

void Fl_screen_dpi(float *h, float *v, int n) {
    Fl::screen_dpi(*h, *v, n);
}

void Fl_screen_work_area(int *X, int *Y, int *W, int *H, int n) {
    Fl::screen_work_area(*X, *Y, *W, *H, n);
}

void Fl_screen_work_area_at(int *X, int *Y, int *W, int *H, int mx, int my) {
    Fl::screen_work_area(*X, *Y, *W, *H, mx, my);
}

void Fl_screen_work_area_mouse(int *X, int *Y, int *W, int *H) {
    Fl::screen_work_area(*X, *Y, *W, *H);
}

void Fl_keyboard_screen_scaling(int value) {
    Fl::keyboard_screen_scaling(value);
}

void *Fl_event_clipboard(void) {
    return Fl::event_clipboard();
}

const char *Fl_event_clipboard_type(void) {
    return Fl::event_clipboard_type();
}

int Fl_clipboard_contains(const char *type) {
    return Fl::clipboard_contains(type);
}

void Fl_event_dispatch(int (*cb)(int event, void *)) {
    Fl::event_dispatch((int (*)(int, Fl_Window *))cb);
}

int Fl_mac_os_version() {
#ifdef __APPLE__
    return fl_mac_os_version;
#endif
    return 0;
}

unsigned int Fl_inactive(unsigned int c) {
    return fl_inactive(c);
}

unsigned int Fl_lighter(unsigned int c) {
    return fl_lighter(c);
}

unsigned int Fl_darker(unsigned int c) {
    return fl_darker(c);
}

void Fl_set_box_type_cb(
    int box,
    void (*cb)(int, int, int, int, unsigned int),
    int x,
    int y,
    int w,
    int h
) {
    Fl::set_boxtype((Fl_Boxtype)box, cb, x, y, w, h);
}

int Fl_draw_box_active(void) {
    return Fl::draw_box_active();
}

unsigned int Fl_gray_ramp(int i) {
    return fl_gray_ramp(i);
}

unsigned int Fl_color_average(unsigned int c1, unsigned int c2, float weight) {
    return fl_color_average(c1, c2, weight);
}

unsigned int Fl_contrast(unsigned int c1, unsigned int c2) {
    return fl_contrast(c1, c2);
}

unsigned int Fl_rgb_color(unsigned char r, unsigned char g, unsigned char b) {
    return fl_rgb_color(r, g, b);
}

unsigned int Fl_rgb_color2(unsigned char g) {
    return fl_rgb_color(g);
}

extern unsigned fl_cmap[256];

unsigned int Fl_cmap(unsigned int c) {
    return fl_cmap[c];
}

unsigned int Fl_box_color(unsigned int c) {
    return (Fl_Color)Fl::box_color((Fl_Color)c);
}

void Fl_set_box_color(unsigned int c) {
    Fl::set_box_color((Fl_Color)c);
}

void Fl_add_system_handler(int (*cb)(void *, void *), void *data) {
    LOCK(Fl::add_system_handler(cb, data));
}

void Fl_remove_system_handler(int (*cb)(void *, void *)) {
    LOCK(Fl::remove_system_handler(cb));
}

void Fl_add_clipboard_notify(void (*cb)(int source, void *data), void *data) {
    LOCK(Fl::add_clipboard_notify(cb, data));
}

void Fl_remove_clipboard_notify(void (*cb)(int source, void *data)) {
    LOCK(Fl::remove_clipboard_notify(cb));
}

#ifdef CFLTK_USE_GL
int Fl_gl_visual(int mode) {
    return Fl::gl_visual(mode);
}
#endif

void Fl_open_callback(void (*cb)(const char *)) {
    fl_open_callback(cb);
}

void Fl_disable_wayland(void) {
    bool fl_disable_wayland = true;
}

Fl_Widget *Fl_Widget_Tracker_widget(Fl_Widget_Tracker *t) {
    return t->widget();
}

int Fl_Widget_Tracker_exists(Fl_Widget_Tracker *t) {
    return t->exists();
}

void Fl_get_color_rgb(
    unsigned int col, unsigned char *r, unsigned char *g, unsigned char *b
) {
    Fl::get_color((Fl_Color)col, *r, *g, *b);
}

int Fl_callback_reason(void) {
    return Fl::callback_reason();
}

void *Fl_get_fl_msg(void) {
#ifdef _WIN32
    return &fl_msg;
#else
    return NULL;
#endif
}

void *Fl_cairo_make_current(Fl_Widget *w) {
#ifdef FLTK_HAVE_CAIRO
    return Fl::cairo_make_current((Fl_Window *)w);
#endif
    return 0;
}

void Fl_set_cairo_autolink_context(int alink) {
#ifdef FLTK_HAVE_CAIRO
    Fl::cairo_autolink_context(alink);
#endif
}

int Fl_cairo_autolink_context() {
#ifdef FLTK_HAVE_CAIRO
    return Fl::cairo_autolink_context();
#endif
    return 0;
}

void *Fl_cairo_cc() {
#ifdef FLTK_HAVE_CAIRO
    return Fl::cairo_cc();
#endif
    return 0;
}

void Fl_set_cairo_cc(void *c, int own) {
#ifdef FLTK_HAVE_CAIRO
    Fl::cairo_cc((cairo_t *)c, own);
#endif
}

void Fl_cairo_flush(void *c) {
#ifdef FLTK_HAVE_CAIRO
    Fl::cairo_flush((cairo_t *)c);
#endif
}

int Fl_option(int opt) {
    return Fl::option((Fl::Fl_Option)opt);
}

void Fl_set_option(int opt, int val) {
    Fl::option((Fl::Fl_Option)opt, val);
}

void Fl_set_contrast_level(int level) {
    fl_contrast_level(level);
}

int Fl_contrast_level(void) {
    return fl_contrast_level();
}

void Fl_set_contrast_mode(int mode) {
    fl_contrast_mode(mode);
}

int Fl_contrast_mode(void) {
    return fl_contrast_mode();
}

void Fl_set_contrast_function(
    unsigned int (*f)(unsigned int, unsigned int, int, int)
) {
    fl_contrast_function(f);
}

int Fl_using_wayland(void) {
#if defined(FLTK_USE_WAYLAND)
    return FLTK_USE_WAYLAND == 1 && fl_wl_display();
#else
    return false;
#endif
}

void Fl_watch_widget_pointer(Fl_Widget *w) {
    if (w) {
        Fl::watch_widget_pointer(w);
    }
}

void Fl_release_widget_pointer(Fl_Widget *w) {
    if (w) {
        Fl::release_widget_pointer(w);
    }
}