1 |
matthewc |
38 |
/* |
2 |
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rdesktop: A Remote Desktop Protocol client. |
3 |
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User interface services - X keyboard mapping |
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Copyright (C) Matthew Chapman 1999-2001 |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <X11/Xlib.h> |
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#include <X11/keysym.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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astrand |
66 |
#include <ctype.h> |
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matthewc |
39 |
#include <limits.h> |
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matthewc |
38 |
#include "rdesktop.h" |
29 |
astrand |
66 |
#include "scancodes.h" |
30 |
matthewc |
38 |
|
31 |
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#define KEYMAP_SIZE 4096 |
32 |
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#define KEYMAP_MASK (KEYMAP_SIZE - 1) |
33 |
astrand |
66 |
#define KEYMAP_MAX_LINE_LENGTH 80 |
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matthewc |
38 |
|
35 |
matthewc |
50 |
extern Display *display; |
36 |
matthewc |
38 |
extern char keymapname[16]; |
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extern int keylayout; |
38 |
astrand |
70 |
extern BOOL enable_compose; |
39 |
matthewc |
38 |
|
40 |
astrand |
66 |
static key_translation keymap[KEYMAP_SIZE]; |
41 |
matthewc |
38 |
static unsigned int min_keycode; |
42 |
astrand |
66 |
static uint16 remote_modifier_state = 0; |
43 |
matthewc |
38 |
|
44 |
astrand |
66 |
static void |
45 |
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add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
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{ |
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KeySym keysym; |
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|
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keysym = XStringToKeysym(keyname); |
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if (keysym == NoSymbol) |
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{ |
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error("Bad keysym %s in keymap %s\n", keyname, mapname); |
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return; |
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} |
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DEBUG_KBD("Adding translation, keysym=0x%x, scancode=0x%x, " |
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"modifiers=0x%x\n", (unsigned int) keysym, scancode, |
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modifiers); |
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keymap[keysym & KEYMAP_MASK].scancode = scancode; |
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keymap[keysym & KEYMAP_MASK].modifiers = modifiers; |
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return; |
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} |
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66 |
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|
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astrand |
64 |
static BOOL |
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xkeymap_read(char *mapname) |
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matthewc |
38 |
{ |
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FILE *fp; |
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astrand |
66 |
char line[KEYMAP_MAX_LINE_LENGTH], path[PATH_MAX]; |
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unsigned int line_num = 0; |
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unsigned int line_length = 0; |
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matthewc |
38 |
char *keyname, *p; |
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astrand |
66 |
char *line_rest; |
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uint8 scancode; |
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uint16 modifiers; |
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matthewc |
38 |
|
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astrand |
66 |
|
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matthewc |
38 |
strcpy(path, KEYMAP_PATH); |
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strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH)); |
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fp = fopen(path, "r"); |
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if (fp == NULL) |
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{ |
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error("Failed to open keymap %s\n", path); |
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return False; |
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} |
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|
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astrand |
66 |
/* FIXME: More tolerant on white space */ |
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matthewc |
38 |
while (fgets(line, sizeof(line), fp) != NULL) |
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{ |
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astrand |
66 |
line_num++; |
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|
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/* Replace the \n with \0 */ |
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matthewc |
38 |
p = strchr(line, '\n'); |
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if (p != NULL) |
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*p = 0; |
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|
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astrand |
66 |
line_length = strlen(line); |
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/* Completely empty line */ |
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if (strspn(line, " \t\n\r\f\v") == line_length) |
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matthewc |
38 |
{ |
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astrand |
66 |
continue; |
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} |
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matthewc |
38 |
|
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astrand |
66 |
/* Include */ |
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if (strncmp(line, "include ", 8) == 0) |
110 |
matthewc |
38 |
{ |
111 |
astrand |
64 |
if (!xkeymap_read(line + 8)) |
112 |
matthewc |
38 |
return False; |
113 |
astrand |
66 |
continue; |
114 |
matthewc |
38 |
} |
115 |
astrand |
66 |
|
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/* map */ |
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if (strncmp(line, "map ", 4) == 0) |
118 |
matthewc |
38 |
{ |
119 |
astrand |
64 |
keylayout = strtol(line + 4, NULL, 16); |
120 |
astrand |
66 |
DEBUG_KBD("Keylayout 0x%x\n", keylayout); |
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continue; |
122 |
matthewc |
38 |
} |
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astrand |
66 |
|
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astrand |
70 |
/* compose */ |
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if (strncmp(line, "enable_compose", 15) == 0) |
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{ |
127 |
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DEBUG_KBD("Enabling compose handling\n"); |
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enable_compose = True; |
129 |
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continue; |
130 |
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} |
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|
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astrand |
66 |
/* Comment */ |
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if (line[0] == '#') |
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matthewc |
38 |
{ |
135 |
astrand |
66 |
continue; |
136 |
matthewc |
38 |
} |
137 |
astrand |
66 |
|
138 |
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/* Normal line */ |
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keyname = line; |
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p = strchr(line, ' '); |
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if (p == NULL) |
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{ |
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error("Bad line %d in keymap %s\n", line_num, |
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mapname); |
145 |
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continue; |
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} |
147 |
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else |
148 |
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{ |
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*p = 0; |
150 |
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} |
151 |
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152 |
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/* scancode */ |
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p++; |
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scancode = strtol(p, &line_rest, 16); |
155 |
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|
156 |
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/* flags */ |
157 |
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/* FIXME: Should allow case-insensitive flag names. |
158 |
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Fix by using lex+yacc... */ |
159 |
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modifiers = 0; |
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if (strstr(line_rest, "altgr")) |
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{ |
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MASK_ADD_BITS(modifiers, MapAltGrMask); |
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} |
164 |
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if (strstr(line_rest, "shift")) |
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{ |
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MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
168 |
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} |
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if (strstr(line_rest, "numlock")) |
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{ |
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MASK_ADD_BITS(modifiers, MapNumLockMask); |
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} |
174 |
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|
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astrand |
69 |
if (strstr(line_rest, "localstate")) |
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{ |
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MASK_ADD_BITS(modifiers, MapLocalStateMask); |
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} |
179 |
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|
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astrand |
66 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
181 |
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|
182 |
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if (strstr(line_rest, "addupper")) |
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{ |
184 |
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/* Automatically add uppercase key, with same modifiers |
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plus shift */ |
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for (p = keyname; *p; p++) |
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*p = toupper(*p); |
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MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
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add_to_keymap(keyname, scancode, modifiers, mapname); |
190 |
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} |
191 |
matthewc |
38 |
} |
192 |
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193 |
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fclose(fp); |
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return True; |
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} |
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|
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astrand |
66 |
|
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/* Before connecting and creating UI */ |
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astrand |
64 |
void |
200 |
astrand |
66 |
xkeymap_init1(void) |
201 |
matthewc |
38 |
{ |
202 |
astrand |
66 |
int i; |
203 |
matthewc |
38 |
|
204 |
astrand |
66 |
/* Zeroing keymap */ |
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for (i = 0; i < KEYMAP_SIZE; i++) |
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{ |
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keymap[i].scancode = 0; |
208 |
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keymap[i].modifiers = 0; |
209 |
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} |
210 |
matthewc |
38 |
|
211 |
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if (strcmp(keymapname, "none")) |
212 |
astrand |
66 |
{ |
213 |
matthewc |
38 |
xkeymap_read(keymapname); |
214 |
astrand |
66 |
} |
215 |
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|
216 |
matthewc |
38 |
} |
217 |
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|
218 |
astrand |
66 |
/* After connecting and creating UI */ |
219 |
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void |
220 |
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xkeymap_init2(void) |
221 |
matthewc |
38 |
{ |
222 |
astrand |
66 |
unsigned int max_keycode; |
223 |
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XDisplayKeycodes(display, &min_keycode, &max_keycode); |
224 |
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} |
225 |
matthewc |
38 |
|
226 |
astrand |
66 |
|
227 |
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key_translation |
228 |
astrand |
69 |
xkeymap_translate_key(KeySym keysym, unsigned int keycode, unsigned int state) |
229 |
astrand |
66 |
{ |
230 |
|
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key_translation tr = { 0, 0 }; |
231 |
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232 |
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tr = keymap[keysym & KEYMAP_MASK]; |
233 |
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|
234 |
astrand |
69 |
if (tr.modifiers & MapLocalStateMask) |
235 |
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{ |
236 |
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/* The modifiers to send for this key should be obtained |
237 |
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from the local state. Currently, only shift is implemented. */ |
238 |
|
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if (state & ShiftMask) |
239 |
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{ |
240 |
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tr.modifiers = MapLeftShiftMask; |
241 |
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} |
242 |
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} |
243 |
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|
244 |
astrand |
66 |
if (tr.scancode != 0) |
245 |
matthewc |
50 |
{ |
246 |
astrand |
66 |
DEBUG_KBD |
247 |
|
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("Found key translation, scancode=0x%x, modifiers=0x%x\n", |
248 |
|
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tr.scancode, tr.modifiers); |
249 |
|
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return tr; |
250 |
matthewc |
50 |
} |
251 |
|
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|
252 |
astrand |
66 |
printf("No translation for (keysym 0x%lx, %s)\n", keysym, |
253 |
|
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get_ksname(keysym)); |
254 |
|
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|
255 |
matthewc |
38 |
/* not in keymap, try to interpret the raw scancode */ |
256 |
|
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if ((keycode >= min_keycode) && (keycode <= 0x60)) |
257 |
|
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{ |
258 |
astrand |
66 |
tr.scancode = keycode - min_keycode; |
259 |
|
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printf("Sending guessed scancode 0x%x\n", tr.scancode); |
260 |
matthewc |
38 |
} |
261 |
astrand |
66 |
else |
262 |
|
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{ |
263 |
|
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printf("No good guess for keycode 0x%x found\n", keycode); |
264 |
|
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} |
265 |
matthewc |
38 |
|
266 |
astrand |
66 |
return tr; |
267 |
matthewc |
38 |
} |
268 |
|
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|
269 |
astrand |
64 |
uint16 |
270 |
|
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xkeymap_translate_button(unsigned int button) |
271 |
matthewc |
38 |
{ |
272 |
|
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switch (button) |
273 |
|
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{ |
274 |
astrand |
64 |
case Button1: /* left */ |
275 |
matthewc |
38 |
return MOUSE_FLAG_BUTTON1; |
276 |
astrand |
64 |
case Button2: /* middle */ |
277 |
matthewc |
38 |
return MOUSE_FLAG_BUTTON3; |
278 |
astrand |
64 |
case Button3: /* right */ |
279 |
matthewc |
38 |
return MOUSE_FLAG_BUTTON2; |
280 |
jsorg71 |
67 |
case Button4: /* wheel up */ |
281 |
|
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return MOUSE_FLAG_BUTTON4; |
282 |
|
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case Button5: /* wheel down */ |
283 |
|
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return MOUSE_FLAG_BUTTON5; |
284 |
matthewc |
38 |
} |
285 |
|
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|
286 |
|
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return 0; |
287 |
|
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} |
288 |
astrand |
66 |
|
289 |
|
|
char * |
290 |
|
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get_ksname(KeySym keysym) |
291 |
|
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{ |
292 |
|
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char *ksname = NULL; |
293 |
|
|
|
294 |
|
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if (keysym == NoSymbol) |
295 |
|
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ksname = "NoSymbol"; |
296 |
|
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else if (!(ksname = XKeysymToString(keysym))) |
297 |
|
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ksname = "(no name)"; |
298 |
|
|
|
299 |
|
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return ksname; |
300 |
|
|
} |
301 |
|
|
|
302 |
|
|
BOOL |
303 |
|
|
inhibit_key(KeySym keysym) |
304 |
|
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{ |
305 |
|
|
switch (keysym) |
306 |
|
|
{ |
307 |
|
|
case XK_Caps_Lock: |
308 |
|
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return True; |
309 |
|
|
break; |
310 |
|
|
case XK_Multi_key: |
311 |
|
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return True; |
312 |
|
|
break; |
313 |
|
|
default: |
314 |
|
|
break; |
315 |
|
|
} |
316 |
|
|
return False; |
317 |
|
|
} |
318 |
|
|
|
319 |
|
|
void |
320 |
|
|
ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
321 |
|
|
{ |
322 |
|
|
/* If this key is a modifier, do nothing */ |
323 |
|
|
switch (tr.scancode) |
324 |
|
|
{ |
325 |
|
|
case SCANCODE_CHAR_LSHIFT: |
326 |
|
|
case SCANCODE_CHAR_RSHIFT: |
327 |
|
|
case SCANCODE_CHAR_LCTRL: |
328 |
|
|
case SCANCODE_CHAR_RCTRL: |
329 |
|
|
case SCANCODE_CHAR_LALT: |
330 |
|
|
case SCANCODE_CHAR_RALT: |
331 |
|
|
case SCANCODE_CHAR_LWIN: |
332 |
|
|
case SCANCODE_CHAR_RWIN: |
333 |
|
|
case SCANCODE_CHAR_NUMLOCK: |
334 |
|
|
return; |
335 |
|
|
default: |
336 |
|
|
break; |
337 |
|
|
} |
338 |
|
|
|
339 |
|
|
/* Shift */ |
340 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
341 |
|
|
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
342 |
|
|
{ |
343 |
|
|
/* The remote modifier state is not correct */ |
344 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)) |
345 |
|
|
{ |
346 |
|
|
/* Needs this modifier. Send down. */ |
347 |
|
|
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
348 |
|
|
SCANCODE_CHAR_LSHIFT); |
349 |
|
|
} |
350 |
|
|
else |
351 |
|
|
{ |
352 |
|
|
/* Should not use this modifier. Send up. */ |
353 |
|
|
rdp_send_scancode(ev_time, RDP_KEYRELEASE, |
354 |
|
|
SCANCODE_CHAR_LSHIFT); |
355 |
|
|
} |
356 |
|
|
} |
357 |
|
|
|
358 |
|
|
/* AltGr */ |
359 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
360 |
|
|
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
361 |
|
|
{ |
362 |
|
|
/* The remote modifier state is not correct */ |
363 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
364 |
|
|
{ |
365 |
|
|
/* Needs this modifier. Send down. */ |
366 |
|
|
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
367 |
|
|
SCANCODE_CHAR_RALT); |
368 |
|
|
} |
369 |
|
|
else |
370 |
|
|
{ |
371 |
|
|
/* Should not use this modifier. Send up. */ |
372 |
|
|
rdp_send_scancode(ev_time, RDP_KEYRELEASE, |
373 |
|
|
SCANCODE_CHAR_RALT); |
374 |
|
|
} |
375 |
|
|
} |
376 |
|
|
|
377 |
|
|
/* NumLock */ |
378 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
379 |
|
|
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
380 |
|
|
{ |
381 |
|
|
/* The remote modifier state is not correct */ |
382 |
|
|
DEBUG_KBD("Remote NumLock state is incorrect. Toggling\n"); |
383 |
|
|
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
384 |
|
|
{ |
385 |
|
|
/* Needs this modifier. Toggle */ |
386 |
|
|
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
387 |
|
|
SCANCODE_CHAR_NUMLOCK); |
388 |
|
|
rdp_send_scancode(ev_time, RDP_KEYRELEASE, |
389 |
|
|
SCANCODE_CHAR_NUMLOCK); |
390 |
|
|
} |
391 |
|
|
else |
392 |
|
|
{ |
393 |
|
|
/* Should not use this modifier. Toggle */ |
394 |
|
|
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
395 |
|
|
SCANCODE_CHAR_NUMLOCK); |
396 |
|
|
rdp_send_scancode(ev_time, RDP_KEYRELEASE, |
397 |
|
|
SCANCODE_CHAR_NUMLOCK); |
398 |
|
|
} |
399 |
|
|
} |
400 |
|
|
|
401 |
|
|
} |
402 |
|
|
|
403 |
|
|
|
404 |
|
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static void |
405 |
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update_modifier_state(uint16 modifiers, BOOL pressed) |
406 |
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{ |
407 |
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|
408 |
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DEBUG_KBD("Before updating modifier_state:0x%x, pressed=0x%x\n", |
409 |
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remote_modifier_state, pressed); |
410 |
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switch (modifiers) |
411 |
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{ |
412 |
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case SCANCODE_CHAR_LSHIFT: |
413 |
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MASK_CHANGE_BIT(remote_modifier_state, |
414 |
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MapLeftShiftMask, pressed); |
415 |
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break; |
416 |
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case SCANCODE_CHAR_RSHIFT: |
417 |
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MASK_CHANGE_BIT(remote_modifier_state, |
418 |
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MapRightShiftMask, pressed); |
419 |
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break; |
420 |
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case SCANCODE_CHAR_LCTRL: |
421 |
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MASK_CHANGE_BIT(remote_modifier_state, |
422 |
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MapLeftCtrlMask, pressed); |
423 |
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break; |
424 |
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case SCANCODE_CHAR_RCTRL: |
425 |
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MASK_CHANGE_BIT(remote_modifier_state, |
426 |
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MapRightCtrlMask, pressed); |
427 |
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break; |
428 |
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case SCANCODE_CHAR_LALT: |
429 |
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MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, |
430 |
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pressed); |
431 |
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break; |
432 |
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case SCANCODE_CHAR_RALT: |
433 |
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MASK_CHANGE_BIT(remote_modifier_state, |
434 |
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MapRightAltMask, pressed); |
435 |
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break; |
436 |
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case SCANCODE_CHAR_LWIN: |
437 |
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MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, |
438 |
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pressed); |
439 |
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break; |
440 |
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case SCANCODE_CHAR_RWIN: |
441 |
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MASK_CHANGE_BIT(remote_modifier_state, |
442 |
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MapRightWinMask, pressed); |
443 |
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break; |
444 |
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case SCANCODE_CHAR_NUMLOCK: |
445 |
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/* KeyReleases for NumLocks are sent immediately. Toggle the |
446 |
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modifier state only on Keypress */ |
447 |
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if (pressed) |
448 |
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{ |
449 |
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BOOL newNumLockState; |
450 |
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newNumLockState = |
451 |
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(MASK_HAS_BITS |
452 |
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(remote_modifier_state, |
453 |
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MapNumLockMask) == False); |
454 |
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MASK_CHANGE_BIT(remote_modifier_state, |
455 |
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MapNumLockMask, |
456 |
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newNumLockState); |
457 |
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} |
458 |
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break; |
459 |
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} |
460 |
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DEBUG_KBD("After updating modifier_state:0x%x\n", |
461 |
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remote_modifier_state); |
462 |
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|
463 |
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} |
464 |
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|
465 |
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/* Send keyboard input */ |
466 |
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void |
467 |
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rdp_send_scancode(uint32 time, uint16 flags, uint16 scancode) |
468 |
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{ |
469 |
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update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
470 |
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|
471 |
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if (scancode & SCANCODE_EXTENDED) |
472 |
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{ |
473 |
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DEBUG_KBD("Sending extended scancode=0x%x, flags=0x%x\n", |
474 |
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scancode & ~SCANCODE_EXTENDED, flags); |
475 |
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rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
476 |
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scancode & ~SCANCODE_EXTENDED, 0); |
477 |
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} |
478 |
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else |
479 |
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{ |
480 |
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DEBUG_KBD("Sending scancode=0x%x, flags=0x%x\n", scancode, |
481 |
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flags); |
482 |
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rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
483 |
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} |
484 |
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} |