4 /* glk.h: Header file for Glk API, version 0.7.3.
5 Designed by Andrew Plotkin <erkyrath@eblong.com>
6 http://eblong.com/zarf/glk/
8 This file is copyright 1998-2011 by Andrew Plotkin. You may copy,
9 distribute, and incorporate it into your own programs, by any means
10 and under any conditions, as long as you do not modify it. You may
11 also modify this file, incorporate it into your own programs,
12 and distribute the modified version, as long as you retain a notice
13 in your program or documentation which mentions my name and the URL
17 /* If your system does not have <stdint.h>, you'll have to remove this
18 include line. Then edit the definition of glui32 to make sure it's
19 really a 32-bit unsigned integer type, and glsi32 to make sure
20 it's really a 32-bit signed integer type. If they're not, horrible
21 things will happen. */
23 typedef uint32_t glui32;
24 typedef int32_t glsi32;
26 /* These are the compile-time conditionals that reveal various Glk optional
27 modules. Note that if GLK_MODULE_SOUND2 is defined, GLK_MODULE_SOUND
29 #define GLK_MODULE_LINE_ECHO
30 #define GLK_MODULE_LINE_TERMINATORS
31 #define GLK_MODULE_UNICODE
32 #define GLK_MODULE_UNICODE_NORM
33 #define GLK_MODULE_IMAGE
34 #define GLK_MODULE_SOUND
35 #define GLK_MODULE_SOUND2
36 #define GLK_MODULE_HYPERLINKS
37 #define GLK_MODULE_DATETIME
39 /* These types are opaque object identifiers. They're pointers to opaque
40 C structures, which are defined differently by each library. */
41 typedef struct glk_window_struct *winid_t;
42 typedef struct glk_stream_struct *strid_t;
43 typedef struct glk_fileref_struct *frefid_t;
44 typedef struct glk_schannel_struct *schanid_t;
46 #define gestalt_Version (0)
47 #define gestalt_CharInput (1)
48 #define gestalt_LineInput (2)
49 #define gestalt_CharOutput (3)
50 #define gestalt_CharOutput_CannotPrint (0)
51 #define gestalt_CharOutput_ApproxPrint (1)
52 #define gestalt_CharOutput_ExactPrint (2)
53 #define gestalt_MouseInput (4)
54 #define gestalt_Timer (5)
55 #define gestalt_Graphics (6)
56 #define gestalt_DrawImage (7)
57 #define gestalt_Sound (8)
58 #define gestalt_SoundVolume (9)
59 #define gestalt_SoundNotify (10)
60 #define gestalt_Hyperlinks (11)
61 #define gestalt_HyperlinkInput (12)
62 #define gestalt_SoundMusic (13)
63 #define gestalt_GraphicsTransparency (14)
64 #define gestalt_Unicode (15)
65 #define gestalt_UnicodeNorm (16)
66 #define gestalt_LineInputEcho (17)
67 #define gestalt_LineTerminators (18)
68 #define gestalt_LineTerminatorKey (19)
69 #define gestalt_DateTime (20)
70 #define gestalt_Sound2 (21)
72 #define evtype_None (0)
73 #define evtype_Timer (1)
74 #define evtype_CharInput (2)
75 #define evtype_LineInput (3)
76 #define evtype_MouseInput (4)
77 #define evtype_Arrange (5)
78 #define evtype_Redraw (6)
79 #define evtype_SoundNotify (7)
80 #define evtype_Hyperlink (8)
81 #define evtype_VolumeNotify (9)
83 typedef struct event_struct {
89 #define keycode_Unknown (0xffffffff)
90 #define keycode_Left (0xfffffffe)
91 #define keycode_Right (0xfffffffd)
92 #define keycode_Up (0xfffffffc)
93 #define keycode_Down (0xfffffffb)
94 #define keycode_Return (0xfffffffa)
95 #define keycode_Delete (0xfffffff9)
96 #define keycode_Escape (0xfffffff8)
97 #define keycode_Tab (0xfffffff7)
98 #define keycode_PageUp (0xfffffff6)
99 #define keycode_PageDown (0xfffffff5)
100 #define keycode_Home (0xfffffff4)
101 #define keycode_End (0xfffffff3)
102 #define keycode_Func1 (0xffffffef)
103 #define keycode_Func2 (0xffffffee)
104 #define keycode_Func3 (0xffffffed)
105 #define keycode_Func4 (0xffffffec)
106 #define keycode_Func5 (0xffffffeb)
107 #define keycode_Func6 (0xffffffea)
108 #define keycode_Func7 (0xffffffe9)
109 #define keycode_Func8 (0xffffffe8)
110 #define keycode_Func9 (0xffffffe7)
111 #define keycode_Func10 (0xffffffe6)
112 #define keycode_Func11 (0xffffffe5)
113 #define keycode_Func12 (0xffffffe4)
114 /* The last keycode is always (0x100000000 - keycode_MAXVAL) */
115 #define keycode_MAXVAL (28)
117 #define style_Normal (0)
118 #define style_Emphasized (1)
119 #define style_Preformatted (2)
120 #define style_Header (3)
121 #define style_Subheader (4)
122 #define style_Alert (5)
123 #define style_Note (6)
124 #define style_BlockQuote (7)
125 #define style_Input (8)
126 #define style_User1 (9)
127 #define style_User2 (10)
128 #define style_NUMSTYLES (11)
130 typedef struct stream_result_struct {
135 #define wintype_AllTypes (0)
136 #define wintype_Pair (1)
137 #define wintype_Blank (2)
138 #define wintype_TextBuffer (3)
139 #define wintype_TextGrid (4)
140 #define wintype_Graphics (5)
142 #define winmethod_Left (0x00)
143 #define winmethod_Right (0x01)
144 #define winmethod_Above (0x02)
145 #define winmethod_Below (0x03)
146 #define winmethod_DirMask (0x0f)
148 #define winmethod_Fixed (0x10)
149 #define winmethod_Proportional (0x20)
150 #define winmethod_DivisionMask (0xf0)
152 #define winmethod_Border (0x000)
153 #define winmethod_NoBorder (0x100)
154 #define winmethod_BorderMask (0x100)
156 #define fileusage_Data (0x00)
157 #define fileusage_SavedGame (0x01)
158 #define fileusage_Transcript (0x02)
159 #define fileusage_InputRecord (0x03)
160 #define fileusage_TypeMask (0x0f)
162 #define fileusage_TextMode (0x100)
163 #define fileusage_BinaryMode (0x000)
165 #define filemode_Write (0x01)
166 #define filemode_Read (0x02)
167 #define filemode_ReadWrite (0x03)
168 #define filemode_WriteAppend (0x05)
170 #define seekmode_Start (0)
171 #define seekmode_Current (1)
172 #define seekmode_End (2)
174 #define stylehint_Indentation (0)
175 #define stylehint_ParaIndentation (1)
176 #define stylehint_Justification (2)
177 #define stylehint_Size (3)
178 #define stylehint_Weight (4)
179 #define stylehint_Oblique (5)
180 #define stylehint_Proportional (6)
181 #define stylehint_TextColor (7)
182 #define stylehint_BackColor (8)
183 #define stylehint_ReverseColor (9)
184 #define stylehint_NUMHINTS (10)
186 #define stylehint_just_LeftFlush (0)
187 #define stylehint_just_LeftRight (1)
188 #define stylehint_just_Centered (2)
189 #define stylehint_just_RightFlush (3)
191 /* glk_main() is the top-level function which you define. The Glk library
193 extern void glk_main(void);
195 extern void glk_exit(void);
196 extern void glk_set_interrupt_handler(void (*func)(void));
197 extern void glk_tick(void);
199 extern glui32 glk_gestalt(glui32 sel, glui32 val);
200 extern glui32 glk_gestalt_ext(glui32 sel, glui32 val, glui32 *arr,
203 extern unsigned char glk_char_to_lower(unsigned char ch);
204 extern unsigned char glk_char_to_upper(unsigned char ch);
206 extern winid_t glk_window_get_root(void);
207 extern winid_t glk_window_open(winid_t split, glui32 method, glui32 size,
208 glui32 wintype, glui32 rock);
209 extern void glk_window_close(winid_t win, stream_result_t *result);
210 extern void glk_window_get_size(winid_t win, glui32 *widthptr,
212 extern void glk_window_set_arrangement(winid_t win, glui32 method,
213 glui32 size, winid_t keywin);
214 extern void glk_window_get_arrangement(winid_t win, glui32 *methodptr,
215 glui32 *sizeptr, winid_t *keywinptr);
216 extern winid_t glk_window_iterate(winid_t win, glui32 *rockptr);
217 extern glui32 glk_window_get_rock(winid_t win);
218 extern glui32 glk_window_get_type(winid_t win);
219 extern winid_t glk_window_get_parent(winid_t win);
220 extern winid_t glk_window_get_sibling(winid_t win);
221 extern void glk_window_clear(winid_t win);
222 extern void glk_window_move_cursor(winid_t win, glui32 xpos, glui32 ypos);
224 extern strid_t glk_window_get_stream(winid_t win);
225 extern void glk_window_set_echo_stream(winid_t win, strid_t str);
226 extern strid_t glk_window_get_echo_stream(winid_t win);
227 extern void glk_set_window(winid_t win);
229 extern strid_t glk_stream_open_file(frefid_t fileref, glui32 fmode,
231 extern strid_t glk_stream_open_memory(char *buf, glui32 buflen, glui32 fmode,
233 extern void glk_stream_close(strid_t str, stream_result_t *result);
234 extern strid_t glk_stream_iterate(strid_t str, glui32 *rockptr);
235 extern glui32 glk_stream_get_rock(strid_t str);
236 extern void glk_stream_set_position(strid_t str, glsi32 pos, glui32 seekmode);
237 extern glui32 glk_stream_get_position(strid_t str);
238 extern void glk_stream_set_current(strid_t str);
239 extern strid_t glk_stream_get_current(void);
241 extern void glk_put_char(unsigned char ch);
242 extern void glk_put_char_stream(strid_t str, unsigned char ch);
243 extern void glk_put_string(char *s);
244 extern void glk_put_string_stream(strid_t str, char *s);
245 extern void glk_put_buffer(char *buf, glui32 len);
246 extern void glk_put_buffer_stream(strid_t str, char *buf, glui32 len);
247 extern void glk_set_style(glui32 styl);
248 extern void glk_set_style_stream(strid_t str, glui32 styl);
250 extern glsi32 glk_get_char_stream(strid_t str);
251 extern glui32 glk_get_line_stream(strid_t str, char *buf, glui32 len);
252 extern glui32 glk_get_buffer_stream(strid_t str, char *buf, glui32 len);
254 extern void glk_stylehint_set(glui32 wintype, glui32 styl, glui32 hint,
256 extern void glk_stylehint_clear(glui32 wintype, glui32 styl, glui32 hint);
257 extern glui32 glk_style_distinguish(winid_t win, glui32 styl1, glui32 styl2);
258 extern glui32 glk_style_measure(winid_t win, glui32 styl, glui32 hint,
261 extern frefid_t glk_fileref_create_temp(glui32 usage, glui32 rock);
262 extern frefid_t glk_fileref_create_by_name(glui32 usage, char *name,
264 extern frefid_t glk_fileref_create_by_prompt(glui32 usage, glui32 fmode,
266 extern frefid_t glk_fileref_create_from_fileref(glui32 usage, frefid_t fref,
268 extern void glk_fileref_destroy(frefid_t fref);
269 extern frefid_t glk_fileref_iterate(frefid_t fref, glui32 *rockptr);
270 extern glui32 glk_fileref_get_rock(frefid_t fref);
271 extern void glk_fileref_delete_file(frefid_t fref);
272 extern glui32 glk_fileref_does_file_exist(frefid_t fref);
274 extern void glk_select(event_t *event);
275 extern void glk_select_poll(event_t *event);
277 extern void glk_request_timer_events(glui32 millisecs);
279 extern void glk_request_line_event(winid_t win, char *buf, glui32 maxlen,
281 extern void glk_request_char_event(winid_t win);
282 extern void glk_request_mouse_event(winid_t win);
284 extern void glk_cancel_line_event(winid_t win, event_t *event);
285 extern void glk_cancel_char_event(winid_t win);
286 extern void glk_cancel_mouse_event(winid_t win);
288 #ifdef GLK_MODULE_LINE_ECHO
289 extern void glk_set_echo_line_event(winid_t win, glui32 val);
290 #endif /* GLK_MODULE_LINE_ECHO */
292 #ifdef GLK_MODULE_LINE_TERMINATORS
293 extern void glk_set_terminators_line_event(winid_t win, glui32 *keycodes,
295 #endif /* GLK_MODULE_LINE_TERMINATORS */
297 #ifdef GLK_MODULE_UNICODE
299 extern glui32 glk_buffer_to_lower_case_uni(glui32 *buf, glui32 len,
301 extern glui32 glk_buffer_to_upper_case_uni(glui32 *buf, glui32 len,
303 extern glui32 glk_buffer_to_title_case_uni(glui32 *buf, glui32 len,
304 glui32 numchars, glui32 lowerrest);
306 extern void glk_put_char_uni(glui32 ch);
307 extern void glk_put_string_uni(glui32 *s);
308 extern void glk_put_buffer_uni(glui32 *buf, glui32 len);
309 extern void glk_put_char_stream_uni(strid_t str, glui32 ch);
310 extern void glk_put_string_stream_uni(strid_t str, glui32 *s);
311 extern void glk_put_buffer_stream_uni(strid_t str, glui32 *buf, glui32 len);
313 extern glsi32 glk_get_char_stream_uni(strid_t str);
314 extern glui32 glk_get_buffer_stream_uni(strid_t str, glui32 *buf, glui32 len);
315 extern glui32 glk_get_line_stream_uni(strid_t str, glui32 *buf, glui32 len);
317 extern strid_t glk_stream_open_file_uni(frefid_t fileref, glui32 fmode,
319 extern strid_t glk_stream_open_memory_uni(glui32 *buf, glui32 buflen,
320 glui32 fmode, glui32 rock);
322 extern void glk_request_char_event_uni(winid_t win);
323 extern void glk_request_line_event_uni(winid_t win, glui32 *buf,
324 glui32 maxlen, glui32 initlen);
326 #endif /* GLK_MODULE_UNICODE */
328 #ifdef GLK_MODULE_UNICODE_NORM
330 extern glui32 glk_buffer_canon_decompose_uni(glui32 *buf, glui32 len,
332 extern glui32 glk_buffer_canon_normalize_uni(glui32 *buf, glui32 len,
335 #endif /* GLK_MODULE_UNICODE_NORM */
337 #ifdef GLK_MODULE_IMAGE
339 #define imagealign_InlineUp (0x01)
340 #define imagealign_InlineDown (0x02)
341 #define imagealign_InlineCenter (0x03)
342 #define imagealign_MarginLeft (0x04)
343 #define imagealign_MarginRight (0x05)
345 extern glui32 glk_image_draw(winid_t win, glui32 image, glsi32 val1, glsi32 val2);
346 extern glui32 glk_image_draw_scaled(winid_t win, glui32 image,
347 glsi32 val1, glsi32 val2, glui32 width, glui32 height);
348 extern glui32 glk_image_get_info(glui32 image, glui32 *width, glui32 *height);
350 extern void glk_window_flow_break(winid_t win);
352 extern void glk_window_erase_rect(winid_t win,
353 glsi32 left, glsi32 top, glui32 width, glui32 height);
354 extern void glk_window_fill_rect(winid_t win, glui32 color,
355 glsi32 left, glsi32 top, glui32 width, glui32 height);
356 extern void glk_window_set_background_color(winid_t win, glui32 color);
358 #endif /* GLK_MODULE_IMAGE */
360 #ifdef GLK_MODULE_SOUND
362 extern schanid_t glk_schannel_create(glui32 rock);
363 extern void glk_schannel_destroy(schanid_t chan);
364 extern schanid_t glk_schannel_iterate(schanid_t chan, glui32 *rockptr);
365 extern glui32 glk_schannel_get_rock(schanid_t chan);
367 extern glui32 glk_schannel_play(schanid_t chan, glui32 snd);
368 extern glui32 glk_schannel_play_ext(schanid_t chan, glui32 snd, glui32 repeats,
370 extern void glk_schannel_stop(schanid_t chan);
371 extern void glk_schannel_set_volume(schanid_t chan, glui32 vol);
373 extern void glk_sound_load_hint(glui32 snd, glui32 flag);
375 #ifdef GLK_MODULE_SOUND2
376 /* Note that this section is nested inside the #ifdef GLK_MODULE_SOUND.
377 GLK_MODULE_SOUND must be defined if GLK_MODULE_SOUND2 is. */
379 extern schanid_t glk_schannel_create_ext(glui32 rock, glui32 volume);
380 extern glui32 glk_schannel_play_multi(schanid_t *chanarray, glui32 chancount,
381 glui32 *sndarray, glui32 soundcount, glui32 notify);
382 extern void glk_schannel_pause(schanid_t chan);
383 extern void glk_schannel_unpause(schanid_t chan);
384 extern void glk_schannel_set_volume_ext(schanid_t chan, glui32 vol,
385 glui32 duration, glui32 notify);
387 #endif /* GLK_MODULE_SOUND2 */
388 #endif /* GLK_MODULE_SOUND */
390 #ifdef GLK_MODULE_HYPERLINKS
392 extern void glk_set_hyperlink(glui32 linkval);
393 extern void glk_set_hyperlink_stream(strid_t str, glui32 linkval);
394 extern void glk_request_hyperlink_event(winid_t win);
395 extern void glk_cancel_hyperlink_event(winid_t win);
397 #endif /* GLK_MODULE_HYPERLINKS */
399 #ifdef GLK_MODULE_DATETIME
401 typedef struct glktimeval_struct {
407 typedef struct glkdate_struct {
408 glsi32 year; /* full (four-digit) year */
409 glsi32 month; /* 1-12, 1 is January */
410 glsi32 day; /* 1-31 */
411 glsi32 weekday; /* 0-6, 0 is Sunday */
412 glsi32 hour; /* 0-23 */
413 glsi32 minute; /* 0-59 */
414 glsi32 second; /* 0-59, maybe 60 during a leap second */
415 glsi32 microsec; /* 0-999999 */
418 extern void glk_current_time(glktimeval_t *time);
419 extern glsi32 glk_current_simple_time(glui32 factor);
420 extern void glk_time_to_date_utc(glktimeval_t *time, glkdate_t *date);
421 extern void glk_time_to_date_local(glktimeval_t *time, glkdate_t *date);
422 extern void glk_simple_time_to_date_utc(glsi32 time, glui32 factor,
424 extern void glk_simple_time_to_date_local(glsi32 time, glui32 factor,
426 extern void glk_date_to_time_utc(glkdate_t *date, glktimeval_t *time);
427 extern void glk_date_to_time_local(glkdate_t *date, glktimeval_t *time);
428 extern glsi32 glk_date_to_simple_time_utc(glkdate_t *date, glui32 factor);
429 extern glsi32 glk_date_to_simple_time_local(glkdate_t *date, glui32 factor);
431 #endif /* GLK_MODULE_DATETIME */