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284f4730 | 1 | /* Declarations useful when processing input. |
e5d77022 | 2 | Copyright (C) 1985, 1986, 1987, 1992 Free Software Foundation, Inc. |
284f4730 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
e5d77022 | 8 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* Total number of times read_char has returned. */ | |
21 | extern int num_input_chars; | |
22 | ||
23 | /* Nonzero means polling for input is temporarily suppresed. */ | |
24 | extern int poll_suppress_count; | |
25 | ||
26 | /* Keymap mapping ASCII function key sequences onto their preferred forms. | |
27 | Initialized by the terminal-specific lisp files. */ | |
28 | extern Lisp_Object Vfunction_key_map; | |
29 | ||
30 | \f | |
31 | /* Macros for dealing with lispy events. */ | |
32 | ||
33 | /* True iff EVENT has data fields describing it (i.e. a mouse click). */ | |
34 | #define EVENT_HAS_PARAMETERS(event) \ | |
35 | (XTYPE (event) == Lisp_Cons && Flength (event) == 5) | |
36 | ||
37 | /* Access the components of composite events. */ | |
38 | #define EVENT_HEAD(event) (Fnth (0, (event))) | |
39 | #define EVENT_WINDOW(event) (Fnth (1, (event))) | |
40 | #define EVENT_BUFFER_POSN(event) (Fnth (2, (event))) | |
41 | #define EVENT_SCROLLBAR_BUTTON EVENT_BUFFER_POSN | |
42 | #define EVENT_WINDOW_POSN(event) (Fnth (3, (event))) | |
43 | #define EVENT_TIMESTAMP(event) (Fnth (4, (event))) | |
44 | ||
45 | /* Some of the event heads. */ | |
46 | extern Lisp_Object Qvscrollbar_part, Qvslider_part; | |
47 | extern Lisp_Object Qvthumbup_part, Qvthumbdown_part; | |
48 | extern Lisp_Object Qhscrollbar_part, Qhslider_part; | |
49 | extern Lisp_Object Qhthumbleft_part, Qhthumbright_part; | |
50 | ||
51 | /* Properties on event heads. */ | |
52 | extern Lisp_Object Qevent_kind, Qevent_unmodified; | |
53 | ||
54 | /* Getting an unmodified version of an event head. */ | |
55 | #define EVENT_HEAD_UNMODIFIED(event_head) \ | |
56 | (Fget ((event_head), Qevent_unmodified)) | |
57 | ||
58 | /* The values of Qevent_kind properties. */ | |
59 | extern Lisp_Object Qfunction_key, Qmouse_click, Qmouse_movement; | |
60 | extern Lisp_Object Qscrollbar_click; | |
61 | ||
62 | /* Getting the kind of an event head. */ | |
63 | #define EVENT_HEAD_KIND(event_head) \ | |
64 | (Fget ((event_head), Qevent_kind)) | |
65 | ||
66 | /* Symbols to use for non-text mouse positions. */ | |
e5d77022 | 67 | extern Lisp_Object Qmode_line, Qvertical_line; |
284f4730 | 68 |