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1 /* Parameters and display hooks for terminal devices.
3 Copyright (C) 1985-1986, 1993-1994, 2001-2012 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 /* Miscellanea. */
23 #include "systime.h" /* for Time */
25 INLINE_HEADER_BEGIN
26 #ifndef TERMHOOKS_INLINE
27 # define TERMHOOKS_INLINE INLINE
28 #endif
30 struct glyph;
31 struct frame;
34 enum scroll_bar_part {
35 scroll_bar_above_handle,
36 scroll_bar_handle,
37 scroll_bar_below_handle,
38 scroll_bar_up_arrow,
39 scroll_bar_down_arrow,
40 scroll_bar_to_top,
41 scroll_bar_to_bottom,
42 scroll_bar_end_scroll,
43 scroll_bar_move_ratio
46 /* If the value of the frame parameter changed, whis hook is called.
47 For example, if going from fullscreen to not fullscreen this hook
48 may do something OS dependent, like extended window manager hints on X11. */
49 extern void (*fullscreen_hook) (struct frame *f);
52 /* Input queue declarations and hooks. */
54 enum event_kind
56 NO_EVENT, /* nothing happened. This should never
57 actually appear in the event queue. */
59 ASCII_KEYSTROKE_EVENT, /* The ASCII code is in .code, perhaps
60 with modifiers applied.
61 .modifiers holds the state of the
62 modifier keys.
63 .frame_or_window is the frame in
64 which the key was typed.
65 .timestamp gives a timestamp (in
66 milliseconds) for the keystroke. */
67 MULTIBYTE_CHAR_KEYSTROKE_EVENT, /* The multibyte char code is in .code,
68 perhaps with modifiers applied.
69 The others are the same as
70 ASCII_KEYSTROKE_EVENT. */
71 NON_ASCII_KEYSTROKE_EVENT, /* .code is a number identifying the
72 function key. A code N represents
73 a key whose name is
74 function_key_names[N]; function_key_names
75 is a table in keyboard.c to which you
76 should feel free to add missing keys.
77 .modifiers holds the state of the
78 modifier keys.
79 .frame_or_window is the frame in
80 which the key was typed.
81 .timestamp gives a timestamp (in
82 milliseconds) for the keystroke. */
83 TIMER_EVENT, /* A timer fired. */
84 MOUSE_CLICK_EVENT, /* The button number is in .code; it must
85 be >= 0 and < NUM_MOUSE_BUTTONS, defined
86 below.
87 .modifiers holds the state of the
88 modifier keys.
89 .x and .y give the mouse position,
90 in characters, within the window.
91 .frame_or_window gives the frame
92 the mouse click occurred in.
93 .timestamp gives a timestamp (in
94 milliseconds) for the click. */
95 WHEEL_EVENT, /* A wheel event is generated by a
96 wheel on a mouse (e.g., MS
97 Intellimouse).
98 .modifiers holds the rotate
99 direction (up or down), and the
100 state of the modifier keys.
101 .x and .y give the mouse position,
102 in characters, within the window.
103 .frame_or_window gives the frame
104 the wheel event occurred in.
105 .timestamp gives a timestamp (in
106 milliseconds) for the event. */
107 HORIZ_WHEEL_EVENT, /* A wheel event generated by a second
108 horizontal wheel that is present on some
109 mice. See WHEEL_EVENT. */
110 #ifdef HAVE_NTGUI
111 LANGUAGE_CHANGE_EVENT, /* A LANGUAGE_CHANGE_EVENT is
112 generated when HAVE_NTGUI or on Mac OS
113 when the keyboard layout or input
114 language is changed by the
115 user. */
116 #endif
117 SCROLL_BAR_CLICK_EVENT, /* .code gives the number of the mouse button
118 that was clicked.
119 .modifiers holds the state of the modifier
120 keys.
121 .part is a lisp symbol indicating which
122 part of the scroll bar got clicked.
123 .x gives the distance from the start of the
124 scroll bar of the click; .y gives the total
125 length of the scroll bar.
126 .frame_or_window gives the window
127 whose scroll bar was clicked in.
128 .timestamp gives a timestamp (in
129 milliseconds) for the click. */
130 SELECTION_REQUEST_EVENT, /* Another X client wants a selection from us.
131 See `struct selection_input_event'. */
132 SELECTION_CLEAR_EVENT, /* Another X client cleared our selection. */
133 BUFFER_SWITCH_EVENT, /* A process filter has switched buffers. */
134 DELETE_WINDOW_EVENT, /* An X client said "delete this window". */
135 MENU_BAR_EVENT, /* An event generated by the menu bar.
136 The frame_or_window field's cdr holds the
137 Lisp-level event value.
138 (Only the toolkit version uses these.) */
139 ICONIFY_EVENT, /* An X client iconified this window. */
140 DEICONIFY_EVENT, /* An X client deiconified this window. */
141 MENU_BAR_ACTIVATE_EVENT, /* A button press in the menu bar
142 (toolkit version only). */
143 DRAG_N_DROP_EVENT, /* A drag-n-drop event is generated when
144 files selected outside of Emacs are dropped
145 onto an Emacs window.
146 .modifiers holds the state of the
147 modifier keys.
148 .x and .y give the mouse position,
149 in characters, within the window.
150 .frame_or_window is the frame in
151 which the drop was made.
152 .arg is a platform-dependent
153 representation of the dropped items.
154 .timestamp gives a timestamp (in
155 milliseconds) for the click. */
156 USER_SIGNAL_EVENT, /* A user signal.
157 code is a number identifying it,
158 index into lispy_user_signals. */
160 /* Help events. Member `frame_or_window' of the input_event is the
161 frame on which the event occurred, and member `arg' contains
162 the help to show. */
163 HELP_EVENT,
165 /* An event from a tool-bar. Member `arg' of the input event
166 contains the tool-bar item selected. If `frame_or_window'
167 and `arg' are equal, this is a prefix event. */
168 TOOL_BAR_EVENT,
170 /* Queued from XTread_socket on FocusIn events. Translated into
171 `switch-frame' events in kbd_buffer_get_event, if necessary. */
172 FOCUS_IN_EVENT,
174 /* Generated when mouse moves over window not currently selected. */
175 SELECT_WINDOW_EVENT,
177 /* Queued from XTread_socket when session manager sends
178 save yourself before shutdown. */
179 SAVE_SESSION_EVENT
181 #ifdef HAVE_GPM
182 , GPM_CLICK_EVENT
183 #endif
185 #ifdef HAVE_DBUS
186 , DBUS_EVENT
187 #endif
189 , CONFIG_CHANGED_EVENT
191 #ifdef HAVE_NTGUI
192 /* Generated when an APPCOMMAND event is received, in response to
193 Multimedia or Internet buttons on some keyboards.
194 Such keys are available as normal function keys on X through the
195 Xkeyboard extension.
196 On Windows, some of them get mapped to normal function key events,
197 but others need to be handled by APPCOMMAND. Handling them all as
198 APPCOMMAND events means they can be disabled
199 (w32-pass-multimedia-buttons-to-system), important on Windows since
200 the system never sees these keys if Emacs claims to handle them.
201 On X, the window manager seems to grab the keys it wants
202 first, so this is not a problem there. */
203 , MULTIMEDIA_KEY_EVENT
204 #endif
206 #ifdef HAVE_NS
207 /* Generated when native multi-keystroke input method is used to modify
208 tentative or indicative text display. */
209 , NS_TEXT_EVENT
210 /* Non-key system events (e.g. application menu events) */
211 , NS_NONKEY_EVENT
212 #endif
216 /* If a struct input_event has a kind which is SELECTION_REQUEST_EVENT
217 or SELECTION_CLEAR_EVENT, then its contents are really described
218 by `struct selection_input_event'; see xterm.h. */
220 /* The keyboard input buffer is an array of these structures. Each one
221 represents some sort of input event - a keystroke, a mouse click, or
222 a window system event. These get turned into their lispy forms when
223 they are removed from the event queue. */
225 struct input_event
227 /* What kind of event was this? */
228 enum event_kind kind;
230 /* For an ASCII_KEYSTROKE_EVENT and MULTIBYTE_CHAR_KEYSTROKE_EVENT,
231 this is the character.
232 For a NON_ASCII_KEYSTROKE_EVENT, this is the keysym code.
233 For a mouse event, this is the button number.
234 For a HELP_EVENT, this is the position within the object
235 (stored in ARG below) where the help was found. */
236 /* In WindowsNT, for a mouse wheel event, this is the delta. */
237 ptrdiff_t code;
238 enum scroll_bar_part part;
240 int modifiers; /* See enum below for interpretation. */
242 Lisp_Object x, y;
243 Time timestamp;
245 /* This is padding just to put the frame_or_window field
246 past the size of struct selection_input_event. */
247 int *padding[2];
249 /* This field is copied into a vector while the event is in the queue,
250 so that garbage collections won't kill it. */
251 /* In a menu_bar_event, this is a cons cell whose car is the frame
252 and whose cdr is the Lisp object that is the event's value. */
253 /* This field is last so that struct selection_input_event
254 does not overlap with it. */
255 Lisp_Object frame_or_window;
257 /* Additional event argument. This is used for TOOL_BAR_EVENTs and
258 HELP_EVENTs and avoids calling Fcons during signal handling. */
259 Lisp_Object arg;
262 #define EVENT_INIT(event) memset (&(event), 0, sizeof (struct input_event))
264 /* Bits in the modifiers member of the input_event structure.
265 Note that reorder_modifiers assumes that the bits are in canonical
266 order.
268 The modifiers applied to mouse clicks are rather ornate. The
269 window-system-specific code should store mouse clicks with
270 up_modifier or down_modifier set. Having an explicit down modifier
271 simplifies some of window-system-independent code; without it, the
272 code would have to recognize down events by checking if the event
273 is a mouse click lacking the click and drag modifiers.
275 The window-system independent code turns all up_modifier events
276 bits into drag_modifier, click_modifier, double_modifier, or
277 triple_modifier events. The click_modifier has no written
278 representation in the names of the symbols used as event heads,
279 but it does appear in the Qevent_symbol_components property of the
280 event heads. */
281 enum {
282 up_modifier = 1, /* Only used on mouse buttons - always
283 turned into a click or a drag modifier
284 before lisp code sees the event. */
285 down_modifier = 2, /* Only used on mouse buttons. */
286 drag_modifier = 4, /* This is never used in the event
287 queue; it's only used internally by
288 the window-system-independent code. */
289 click_modifier= 8, /* See drag_modifier. */
290 double_modifier= 16, /* See drag_modifier. */
291 triple_modifier= 32, /* See drag_modifier. */
293 /* The next four modifier bits are used also in keyboard events at
294 the Lisp level.
296 It's probably not the greatest idea to use the 2^28 bit for any
297 modifier. It may or may not be the sign bit, depending on
298 FIXNUM_BITS, so using it to represent a modifier key means that
299 characters thus modified have different integer equivalents
300 depending on the architecture they're running on. Oh, and
301 applying XINT to a character whose 2^28 bit is set might sign-extend
302 it, so you get a bunch of bits in the mask you didn't want.
304 The CHAR_ macros are defined in lisp.h. */
305 alt_modifier = CHAR_ALT, /* Under X, the XK_Alt_[LR] keysyms. */
306 super_modifier= CHAR_SUPER, /* Under X, the XK_Super_[LR] keysyms. */
307 hyper_modifier= CHAR_HYPER, /* Under X, the XK_Hyper_[LR] keysyms. */
308 shift_modifier= CHAR_SHIFT,
309 ctrl_modifier = CHAR_CTL,
310 meta_modifier = CHAR_META /* Under X, the XK_Meta_[LR] keysyms. */
313 #ifdef HAVE_GPM
314 #include <gpm.h>
315 extern int handle_one_term_event (struct tty_display_info *, Gpm_Event *, struct input_event *);
316 #ifndef HAVE_WINDOW_SYSTEM
317 extern void term_mouse_moveto (int, int);
318 #endif
320 /* The device for which we have enabled gpm support. */
321 extern struct tty_display_info *gpm_tty;
322 #endif
325 struct ns_display_info;
326 struct x_display_info;
327 struct w32_display_info;
329 /* Terminal-local parameters. */
330 struct terminal
332 /* This is for Lisp; the terminal code does not refer to it. */
333 struct vectorlike_header header;
335 /* Parameter alist of this terminal. */
336 Lisp_Object param_alist;
338 /* List of charsets supported by the terminal. It is set by
339 Fset_terminal_coding_system_internal along with
340 the member terminal_coding. */
341 Lisp_Object charset_list;
343 /* This is an association list containing the X selections that
344 Emacs might own on this terminal. Each element has the form
345 (SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME)
346 SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom.
347 SELECTION-VALUE is the value that emacs owns for that selection.
348 It may be any kind of Lisp object.
349 SELECTION-TIMESTAMP is the time at which emacs began owning this
350 selection, as a cons of two 16-bit numbers (making a 32 bit
351 time.)
352 FRAME is the frame for which we made the selection. If there is
353 an entry in this alist, then it can be assumed that Emacs owns
354 that selection.
355 The only (eq) parts of this list that are visible from Lisp are
356 the selection-values. */
357 Lisp_Object Vselection_alist;
359 /* All fields before `next_terminal' should be Lisp_Object and are traced
360 by the GC. All fields afterwards are ignored by the GC. */
362 /* Chain of all terminal devices. */
363 struct terminal *next_terminal;
365 /* Unique id for this terminal device. */
366 int id;
368 /* The number of frames that are on this terminal. */
369 int reference_count;
371 /* The type of the terminal device. */
372 enum output_method type;
374 /* The name of the terminal device. Do not use this to uniquely
375 identify a terminal; the same device may be opened multiple
376 times. */
377 char *name;
379 /* The terminal's keyboard object. */
380 struct kboard *kboard;
382 #ifdef HAVE_WINDOW_SYSTEM
383 /* Cache of images. */
384 struct image_cache *image_cache;
385 #endif /* HAVE_WINDOW_SYSTEM */
387 /* Device-type dependent data shared amongst all frames on this terminal. */
388 union display_info
390 struct tty_display_info *tty; /* termchar.h */
391 struct x_display_info *x; /* xterm.h */
392 struct w32_display_info *w32; /* w32term.h */
393 struct ns_display_info *ns; /* nsterm.h */
394 } display_info;
397 /* Coding-system to be used for encoding terminal output. This
398 structure contains information of a coding-system specified by
399 the function `set-terminal-coding-system'. Also see
400 `safe_terminal_coding' in coding.h. */
401 struct coding_system *terminal_coding;
403 /* Coding-system of what is sent from terminal keyboard. This
404 structure contains information of a coding-system specified by
405 the function `set-keyboard-coding-system'. */
406 struct coding_system *keyboard_coding;
408 /* Terminal characteristics. */
409 /* XXX Are these really used on non-termcap displays? */
411 int must_write_spaces; /* Nonzero means spaces in the text must
412 actually be output; can't just skip over
413 some columns to leave them blank. */
414 int fast_clear_end_of_line; /* Nonzero means terminal has a `ce' string */
416 int line_ins_del_ok; /* Terminal can insert and delete lines */
417 int char_ins_del_ok; /* Terminal can insert and delete chars */
418 int scroll_region_ok; /* Terminal supports setting the scroll
419 window */
420 int scroll_region_cost; /* Cost of setting the scroll window,
421 measured in characters. */
422 int memory_below_frame; /* Terminal remembers lines scrolled
423 off bottom */
425 #if 0 /* These are not used anywhere. */
426 /* EMACS_INT baud_rate; */ /* Output speed in baud */
427 int min_padding_speed; /* Speed below which no padding necessary. */
428 int dont_calculate_costs; /* Nonzero means don't bother computing
429 various cost tables; we won't use them. */
430 #endif
433 /* Window-based redisplay interface for this device (0 for tty
434 devices). */
435 struct redisplay_interface *rif;
437 /* Frame-based redisplay interface. */
439 /* Text display hooks. */
441 void (*cursor_to_hook) (struct frame *f, int vpos, int hpos);
442 void (*raw_cursor_to_hook) (struct frame *, int, int);
444 void (*clear_to_end_hook) (struct frame *);
445 void (*clear_frame_hook) (struct frame *);
446 void (*clear_end_of_line_hook) (struct frame *, int);
448 void (*ins_del_lines_hook) (struct frame *f, int, int);
450 void (*insert_glyphs_hook) (struct frame *f, struct glyph *s, int n);
451 void (*write_glyphs_hook) (struct frame *f, struct glyph *s, int n);
452 void (*delete_glyphs_hook) (struct frame *, int);
454 void (*ring_bell_hook) (struct frame *f);
455 void (*toggle_invisible_pointer_hook) (struct frame *f, int invisible);
457 void (*reset_terminal_modes_hook) (struct terminal *);
458 void (*set_terminal_modes_hook) (struct terminal *);
460 void (*update_begin_hook) (struct frame *);
461 void (*update_end_hook) (struct frame *);
462 void (*set_terminal_window_hook) (struct frame *, int);
464 /* Multi-frame and mouse support hooks. */
466 /* Return the current position of the mouse.
468 Set *f to the frame the mouse is in, or zero if the mouse is in no
469 Emacs frame. If it is set to zero, all the other arguments are
470 garbage.
472 If the motion started in a scroll bar, set *bar_window to the
473 scroll bar's window, *part to the part the mouse is currently over,
474 *x to the position of the mouse along the scroll bar, and *y to the
475 overall length of the scroll bar.
477 Otherwise, set *bar_window to Qnil, and *x and *y to the column and
478 row of the character cell the mouse is over.
480 Set *time to the time the mouse was at the returned position.
482 This should clear mouse_moved until the next motion
483 event arrives. */
484 void (*mouse_position_hook) (struct frame **f, int,
485 Lisp_Object *bar_window,
486 enum scroll_bar_part *part,
487 Lisp_Object *x,
488 Lisp_Object *y,
489 Time *);
491 /* The window system handling code should set this if the mouse has
492 moved since the last call to the mouse_position_hook. Calling that
493 hook should clear this. */
494 int mouse_moved;
496 /* When a frame's focus redirection is changed, this hook tells the
497 window system code to re-decide where to put the highlight. Under
498 X, this means that Emacs lies about where the focus is. */
499 void (*frame_rehighlight_hook) (struct frame *);
501 /* If we're displaying frames using a window system that can stack
502 frames on top of each other, this hook allows you to bring a frame
503 to the front, or bury it behind all the other windows. If this
504 hook is zero, that means the terminal we're displaying on doesn't
505 support overlapping frames, so there's no need to raise or lower
506 anything.
508 If RAISE_FLAG is non-zero, F is brought to the front, before all other
509 windows. If RAISE_FLAG is zero, F is sent to the back, behind all other
510 windows. */
511 void (*frame_raise_lower_hook) (struct frame *f, int raise_flag);
513 /* If the value of the frame parameter changed, whis hook is called.
514 For example, if going from fullscreen to not fullscreen this hook
515 may do something OS dependent, like extended window manager hints on X11. */
516 void (*fullscreen_hook) (struct frame *f);
519 /* Scroll bar hooks. */
521 /* The representation of scroll bars is determined by the code which
522 implements them, except for one thing: they must be represented by
523 lisp objects. This allows us to place references to them in
524 Lisp_Windows without worrying about those references becoming
525 dangling references when the scroll bar is destroyed.
527 The window-system-independent portion of Emacs just refers to
528 scroll bars via their windows, and never looks inside the scroll bar
529 representation; it always uses hook functions to do all the
530 scroll bar manipulation it needs.
532 The `vertical_scroll_bar' field of a Lisp_Window refers to that
533 window's scroll bar, or is nil if the window doesn't have a
534 scroll bar.
536 The `scroll_bars' and `condemned_scroll_bars' fields of a Lisp_Frame
537 are free for use by the scroll bar implementation in any way it sees
538 fit. They are marked by the garbage collector. */
541 /* Set the vertical scroll bar for WINDOW to have its upper left corner
542 at (TOP, LEFT), and be LENGTH rows high. Set its handle to
543 indicate that we are displaying PORTION characters out of a total
544 of WHOLE characters, starting at POSITION. If WINDOW doesn't yet
545 have a scroll bar, create one for it. */
546 void (*set_vertical_scroll_bar_hook) (struct window *window,
547 int portion, int whole,
548 int position);
551 /* The following three hooks are used when we're doing a thorough
552 redisplay of the frame. We don't explicitly know which scroll bars
553 are going to be deleted, because keeping track of when windows go
554 away is a real pain - can you say set-window-configuration?
555 Instead, we just assert at the beginning of redisplay that *all*
556 scroll bars are to be removed, and then save scroll bars from the
557 fiery pit when we actually redisplay their window. */
559 /* Arrange for all scroll bars on FRAME to be removed at the next call
560 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
561 `*redeem_scroll_bar_hook' is applied to its window before the judgment.
563 This should be applied to each frame each time its window tree is
564 redisplayed, even if it is not displaying scroll bars at the moment;
565 if the HAS_SCROLL_BARS flag has just been turned off, only calling
566 this and the judge_scroll_bars_hook will get rid of them.
568 If non-zero, this hook should be safe to apply to any frame,
569 whether or not it can support scroll bars, and whether or not it is
570 currently displaying them. */
571 void (*condemn_scroll_bars_hook) (struct frame *frame);
573 /* Unmark WINDOW's scroll bar for deletion in this judgment cycle.
574 Note that it's okay to redeem a scroll bar that is not condemned. */
575 void (*redeem_scroll_bar_hook) (struct window *window);
577 /* Remove all scroll bars on FRAME that haven't been saved since the
578 last call to `*condemn_scroll_bars_hook'.
580 This should be applied to each frame after each time its window
581 tree is redisplayed, even if it is not displaying scroll bars at the
582 moment; if the HAS_SCROLL_BARS flag has just been turned off, only
583 calling this and condemn_scroll_bars_hook will get rid of them.
585 If non-zero, this hook should be safe to apply to any frame,
586 whether or not it can support scroll bars, and whether or not it is
587 currently displaying them. */
588 void (*judge_scroll_bars_hook) (struct frame *FRAME);
591 /* Called to read input events.
593 TERMINAL indicates which terminal device to read from. Input
594 events should be read into HOLD_QUIT.
596 A positive return value indicates that that many input events
597 were read into BUF.
598 Zero means no events were immediately available.
599 A value of -1 means a transient read error, while -2 indicates
600 that the device was closed (hangup), and it should be deleted. */
601 int (*read_socket_hook) (struct terminal *terminal,
602 struct input_event *hold_quit);
604 /* Called when a frame's display becomes entirely up to date. */
605 void (*frame_up_to_date_hook) (struct frame *);
608 /* Called to delete the device-specific portions of a frame that is
609 on this terminal device. */
610 void (*delete_frame_hook) (struct frame *);
612 /* Called after the last frame on this terminal is deleted, or when
613 the display device was closed (hangup).
615 If this is NULL, then the generic delete_terminal is called
616 instead. Otherwise the hook must call delete_terminal itself.
618 The hook must check for and close any live frames that are still
619 on the terminal. delete_frame ensures that there are no live
620 frames on the terminal when it calls this hook, so infinite
621 recursion is prevented. */
622 void (*delete_terminal_hook) (struct terminal *);
625 /* Most code should use these functions to set Lisp fields in struct
626 terminal. */
627 TERMHOOKS_INLINE void
628 tset_charset_list (struct terminal *t, Lisp_Object val)
630 t->charset_list = val;
632 TERMHOOKS_INLINE void
633 tset_selection_alist (struct terminal *t, Lisp_Object val)
635 t->Vselection_alist = val;
638 /* Chain of all terminal devices currently in use. */
639 extern struct terminal *terminal_list;
641 #define FRAME_MUST_WRITE_SPACES(f) ((f)->terminal->must_write_spaces)
642 #define FRAME_FAST_CLEAR_END_OF_LINE(f) ((f)->terminal->fast_clear_end_of_line)
643 #define FRAME_LINE_INS_DEL_OK(f) ((f)->terminal->line_ins_del_ok)
644 #define FRAME_CHAR_INS_DEL_OK(f) ((f)->terminal->char_ins_del_ok)
645 #define FRAME_SCROLL_REGION_OK(f) ((f)->terminal->scroll_region_ok)
646 #define FRAME_SCROLL_REGION_COST(f) ((f)->terminal->scroll_region_cost)
647 #define FRAME_MEMORY_BELOW_FRAME(f) ((f)->terminal->memory_below_frame)
649 #define FRAME_TERMINAL_CODING(f) ((f)->terminal->terminal_coding)
650 #define FRAME_KEYBOARD_CODING(f) ((f)->terminal->keyboard_coding)
652 #define TERMINAL_TERMINAL_CODING(d) ((d)->terminal_coding)
653 #define TERMINAL_KEYBOARD_CODING(d) ((d)->keyboard_coding)
655 #define FRAME_RIF(f) ((f)->terminal->rif)
657 #define FRAME_TERMINAL(f) ((f)->terminal)
659 /* Return true if the terminal device is not suspended. */
660 #define TERMINAL_ACTIVE_P(d) (((d)->type != output_termcap && (d)->type !=output_msdos_raw) || (d)->display_info.tty->input)
662 extern struct terminal *get_terminal (Lisp_Object terminal, int);
663 extern struct terminal *create_terminal (void);
664 extern void delete_terminal (struct terminal *);
666 /* The initial terminal device, created by initial_term_init. */
667 extern struct terminal *initial_terminal;
669 extern unsigned char *encode_terminal_code (struct glyph *, int,
670 struct coding_system *);
672 #ifdef HAVE_GPM
673 extern void close_gpm (int gpm_fd);
674 #endif
676 INLINE_HEADER_END