| 1 | /* Input event support for Windows NT port of GNU Emacs. |
| 2 | Copyright (C) 1992, 1993, 1995 Free Software Foundation, Inc. |
| 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 |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 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, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. |
| 20 | |
| 21 | Drew Bliss 01-Oct-93 |
| 22 | Adapted from ntkbd.c by Tim Fleehart |
| 23 | */ |
| 24 | |
| 25 | |
| 26 | #include "config.h" |
| 27 | |
| 28 | #include <stdlib.h> |
| 29 | #include <stdio.h> |
| 30 | #include <windows.h> |
| 31 | |
| 32 | #include "lisp.h" |
| 33 | #include "frame.h" |
| 34 | #include "blockinput.h" |
| 35 | #include "termhooks.h" |
| 36 | |
| 37 | /* stdin, from ntterm */ |
| 38 | extern HANDLE keyboard_handle; |
| 39 | |
| 40 | /* Info for last mouse motion */ |
| 41 | static COORD movement_pos; |
| 42 | static DWORD movement_time; |
| 43 | |
| 44 | /* from keyboard.c */ |
| 45 | extern void reinvoke_input_signal (void); |
| 46 | |
| 47 | /* from dispnew.c */ |
| 48 | extern int change_frame_size (FRAME_PTR, int, int, int, int); |
| 49 | |
| 50 | /* Event queue */ |
| 51 | #define EVENT_QUEUE_SIZE 50 |
| 52 | static INPUT_RECORD event_queue[EVENT_QUEUE_SIZE]; |
| 53 | static INPUT_RECORD *queue_ptr = event_queue, *queue_end = event_queue; |
| 54 | |
| 55 | static int |
| 56 | fill_queue (BOOL block) |
| 57 | { |
| 58 | BOOL rc; |
| 59 | DWORD events_waiting; |
| 60 | |
| 61 | if (queue_ptr < queue_end) |
| 62 | return queue_end-queue_ptr; |
| 63 | |
| 64 | if (!block) |
| 65 | { |
| 66 | /* Check to see if there are some events to read before we try |
| 67 | because we can't block. */ |
| 68 | if (!GetNumberOfConsoleInputEvents (keyboard_handle, &events_waiting)) |
| 69 | return -1; |
| 70 | if (events_waiting == 0) |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | rc = ReadConsoleInput (keyboard_handle, event_queue, EVENT_QUEUE_SIZE, |
| 75 | &events_waiting); |
| 76 | if (!rc) |
| 77 | return -1; |
| 78 | queue_ptr = event_queue; |
| 79 | queue_end = event_queue + events_waiting; |
| 80 | return (int) events_waiting; |
| 81 | } |
| 82 | |
| 83 | /* In a generic, multi-frame world this should take a console handle |
| 84 | and return the frame for it |
| 85 | |
| 86 | Right now, there's only one frame so return it. */ |
| 87 | static FRAME_PTR |
| 88 | get_frame (void) |
| 89 | { |
| 90 | return selected_frame; |
| 91 | } |
| 92 | |
| 93 | /* Translate console modifiers to emacs modifiers. |
| 94 | German keyboard support (Kai Morgan Zeise 2/18/95). */ |
| 95 | static int |
| 96 | win32_kbd_mods_to_emacs (DWORD mods) |
| 97 | { |
| 98 | int retval = 0; |
| 99 | |
| 100 | /* If AltGr has been pressed, remove it. */ |
| 101 | if ((mods & (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED)) |
| 102 | == (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED)) |
| 103 | mods &= ~ (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED); |
| 104 | |
| 105 | if (mods & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED)) |
| 106 | retval = meta_modifier; |
| 107 | |
| 108 | if (mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 109 | { |
| 110 | retval |= ctrl_modifier; |
| 111 | if ((mods & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 112 | == (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) |
| 113 | retval |= meta_modifier; |
| 114 | } |
| 115 | |
| 116 | if (((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) == SHIFT_PRESSED) |
| 117 | || ((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) == CAPSLOCK_ON)) |
| 118 | retval |= shift_modifier; |
| 119 | |
| 120 | return retval; |
| 121 | } |
| 122 | |
| 123 | /* Patch up NT keyboard events when info is missing that should be there, |
| 124 | assuming that map_virt_key says that the key is a valid ASCII char. */ |
| 125 | static char win32_number_shift_map[] = { |
| 126 | ')', '!', '@', '#', '$', '%', '^', '&', '*', '(' |
| 127 | }; |
| 128 | |
| 129 | #define WIN32_KEY_SHIFTED(mods, no, yes) \ |
| 130 | ((mods & (SHIFT_PRESSED | CAPSLOCK_ON)) ? yes : no) |
| 131 | |
| 132 | static void |
| 133 | win32_kbd_patch_key (KEY_EVENT_RECORD *event) |
| 134 | { |
| 135 | unsigned int key_code = event->wVirtualKeyCode; |
| 136 | unsigned int mods = event->dwControlKeyState; |
| 137 | int mapped_punct = 0; |
| 138 | |
| 139 | /* map_virt_key says its a valid key, but the uChar.AsciiChar field |
| 140 | is empty. patch up the uChar.AsciiChar field using wVirtualKeyCode. */ |
| 141 | if (event->uChar.AsciiChar == 0 |
| 142 | && ((key_code >= '0' && key_code <= '9') |
| 143 | || (key_code >= 'A' && key_code <= 'Z') |
| 144 | || (key_code >= 0xBA && key_code <= 0xC0) |
| 145 | || (key_code >= 0xDB && key_code <= 0xDE) |
| 146 | )) { |
| 147 | if (key_code >= '0' && key_code <= '9') { |
| 148 | event->uChar.AsciiChar = |
| 149 | WIN32_KEY_SHIFTED (mods, key_code, |
| 150 | win32_number_shift_map[key_code - '0']); |
| 151 | return; |
| 152 | } |
| 153 | switch (key_code) { |
| 154 | case 0xBA: mapped_punct = WIN32_KEY_SHIFTED (mods, ';', ':'); break; |
| 155 | case 0xBB: mapped_punct = WIN32_KEY_SHIFTED (mods, '=', '+'); break; |
| 156 | case 0xBC: mapped_punct = WIN32_KEY_SHIFTED (mods, ',', '<'); break; |
| 157 | case 0xBD: mapped_punct = WIN32_KEY_SHIFTED (mods, '-', '_'); break; |
| 158 | case 0xBE: mapped_punct = WIN32_KEY_SHIFTED (mods, '.', '>'); break; |
| 159 | case 0xBF: mapped_punct = WIN32_KEY_SHIFTED (mods, '/', '?'); break; |
| 160 | case 0xC0: mapped_punct = WIN32_KEY_SHIFTED (mods, '`', '~'); break; |
| 161 | case 0xDB: mapped_punct = WIN32_KEY_SHIFTED (mods, '[', '{'); break; |
| 162 | case 0xDC: mapped_punct = WIN32_KEY_SHIFTED (mods, '\\', '|'); break; |
| 163 | case 0xDD: mapped_punct = WIN32_KEY_SHIFTED (mods, ']', '}'); break; |
| 164 | case 0xDE: mapped_punct = WIN32_KEY_SHIFTED (mods, '\'', '"'); break; |
| 165 | default: |
| 166 | mapped_punct = 0; |
| 167 | break; |
| 168 | } |
| 169 | if (mapped_punct) { |
| 170 | event->uChar.AsciiChar = mapped_punct; |
| 171 | return; |
| 172 | } |
| 173 | /* otherwise, it's a letter. */ |
| 174 | event->uChar.AsciiChar = WIN32_KEY_SHIFTED (mods, key_code - 'A' + 'a', |
| 175 | key_code); |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | /* Map virtual key codes into: |
| 180 | -1 - Ignore this key |
| 181 | -2 - ASCII char |
| 182 | Other - Map non-ASCII keys into X keysyms so that they are looked up |
| 183 | correctly in keyboard.c |
| 184 | |
| 185 | Return, escape and tab are mapped to ASCII rather than coming back |
| 186 | as non-ASCII to be more compatible with old-style keyboard support. */ |
| 187 | |
| 188 | static int map_virt_key[256] = |
| 189 | { |
| 190 | -1, |
| 191 | -1, /* VK_LBUTTON */ |
| 192 | -1, /* VK_RBUTTON */ |
| 193 | 0x69, /* VK_CANCEL */ |
| 194 | -1, /* VK_MBUTTON */ |
| 195 | -1, -1, -1, |
| 196 | 8, /* VK_BACK */ |
| 197 | -2, /* VK_TAB */ |
| 198 | -1, -1, |
| 199 | 11, /* VK_CLEAR */ |
| 200 | -2, /* VK_RETURN */ |
| 201 | -1, -1, |
| 202 | -1, /* VK_SHIFT */ |
| 203 | -1, /* VK_CONTROL */ |
| 204 | -1, /* VK_MENU */ |
| 205 | 0x13, /* VK_PAUSE */ |
| 206 | -1, /* VK_CAPITAL */ |
| 207 | -1, -1, -1, -1, -1, -1, |
| 208 | -2, /* VK_ESCAPE */ |
| 209 | -1, -1, -1, -1, |
| 210 | -2, /* VK_SPACE */ |
| 211 | 0x55, /* VK_PRIOR */ |
| 212 | 0x56, /* VK_NEXT */ |
| 213 | 0x57, /* VK_END */ |
| 214 | 0x50, /* VK_HOME */ |
| 215 | 0x51, /* VK_LEFT */ |
| 216 | 0x52, /* VK_UP */ |
| 217 | 0x53, /* VK_RIGHT */ |
| 218 | 0x54, /* VK_DOWN */ |
| 219 | 0x60, /* VK_SELECT */ |
| 220 | 0x61, /* VK_PRINT */ |
| 221 | 0x62, /* VK_EXECUTE */ |
| 222 | -1, /* VK_SNAPSHOT */ |
| 223 | 0x63, /* VK_INSERT */ |
| 224 | 0xff, /* VK_DELETE */ |
| 225 | 0x6a, /* VK_HELP */ |
| 226 | -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, /* 0 - 9 */ |
| 227 | -1, -1, -1, -1, -1, -1, -1, |
| 228 | -2, -2, -2, -2, -2, -2, -2, -2, /* A - Z */ |
| 229 | -2, -2, -2, -2, -2, -2, -2, -2, |
| 230 | -2, -2, -2, -2, -2, -2, -2, -2, |
| 231 | -2, -2, |
| 232 | -1, -1, -1, -1, -1, |
| 233 | 0xb0, /* VK_NUMPAD0 */ |
| 234 | 0xb1, /* VK_NUMPAD1 */ |
| 235 | 0xb2, /* VK_NUMPAD2 */ |
| 236 | 0xb3, /* VK_NUMPAD3 */ |
| 237 | 0xb4, /* VK_NUMPAD4 */ |
| 238 | 0xb5, /* VK_NUMPAD5 */ |
| 239 | 0xb6, /* VK_NUMPAD6 */ |
| 240 | 0xb7, /* VK_NUMPAD7 */ |
| 241 | 0xb8, /* VK_NUMPAD8 */ |
| 242 | 0xb9, /* VK_NUMPAD9 */ |
| 243 | 0xaa, /* VK_MULTIPLY */ |
| 244 | 0xab, /* VK_ADD */ |
| 245 | 0xac, /* VK_SEPARATOR */ |
| 246 | 0xad, /* VK_SUBTRACT */ |
| 247 | 0xae, /* VK_DECIMAL */ |
| 248 | 0xaf, /* VK_DIVIDE */ |
| 249 | 0xbe, /* VK_F1 */ |
| 250 | 0xbf, /* VK_F2 */ |
| 251 | 0xc0, /* VK_F3 */ |
| 252 | 0xc1, /* VK_F4 */ |
| 253 | 0xc2, /* VK_F5 */ |
| 254 | 0xc3, /* VK_F6 */ |
| 255 | 0xc4, /* VK_F7 */ |
| 256 | 0xc5, /* VK_F8 */ |
| 257 | 0xc6, /* VK_F9 */ |
| 258 | 0xc7, /* VK_F10 */ |
| 259 | 0xc8, /* VK_F11 */ |
| 260 | 0xc9, /* VK_F12 */ |
| 261 | 0xca, /* VK_F13 */ |
| 262 | 0xcb, /* VK_F14 */ |
| 263 | 0xcc, /* VK_F15 */ |
| 264 | 0xcd, /* VK_F16 */ |
| 265 | 0xce, /* VK_F17 */ |
| 266 | 0xcf, /* VK_F18 */ |
| 267 | 0xd0, /* VK_F19 */ |
| 268 | 0xd1, /* VK_F20 */ |
| 269 | 0xd2, /* VK_F21 */ |
| 270 | 0xd3, /* VK_F22 */ |
| 271 | 0xd4, /* VK_F23 */ |
| 272 | 0xd5, /* VK_F24 */ |
| 273 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 274 | 0x7f, /* VK_NUMLOCK */ |
| 275 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0x9f */ |
| 276 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xaf */ |
| 277 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xb9 */ |
| 278 | -2, /* ; */ |
| 279 | -2, /* = */ |
| 280 | -2, /* , */ |
| 281 | -2, /* \ */ |
| 282 | -2, /* . */ |
| 283 | -2, /* / */ |
| 284 | -2, /* ` */ |
| 285 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xcf */ |
| 286 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 0xda */ |
| 287 | -2, -2, -2, -2, -2, /* 0xdf */ |
| 288 | -2, -2, -2, -2, -2, |
| 289 | -1, /* 0xe5 */ |
| 290 | -2, /* oxe6 */ |
| 291 | -1, -1, /* 0xe8 */ |
| 292 | -2, -2, -2, -2, -2, -2, -2, /* 0xef */ |
| 293 | -2, -2, -2, -2, -2, -2, |
| 294 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 0xff */ |
| 295 | }; |
| 296 | |
| 297 | static int |
| 298 | key_event (KEY_EVENT_RECORD *event, struct input_event *emacs_ev) |
| 299 | { |
| 300 | int map; |
| 301 | static BOOL map_virt_key_init_done; |
| 302 | |
| 303 | /* Skip key-up events. */ |
| 304 | if (event->bKeyDown == FALSE) |
| 305 | return 0; |
| 306 | |
| 307 | if (event->wVirtualKeyCode > 0xff) |
| 308 | { |
| 309 | printf ("Unknown key code %d\n", event->wVirtualKeyCode); |
| 310 | return 0; |
| 311 | } |
| 312 | |
| 313 | /* Patch needed for German keyboard. Ulrich Leodolter (1/11/95). */ |
| 314 | if (! map_virt_key_init_done) |
| 315 | { |
| 316 | short vk; |
| 317 | |
| 318 | if ((vk = VkKeyScan (0x3c)) >= 0 && vk < 256) map_virt_key[vk] = -2; /* less */ |
| 319 | if ((vk = VkKeyScan (0x3e)) >= 0 && vk < 256) map_virt_key[vk] = -2; /* greater */ |
| 320 | |
| 321 | map_virt_key_init_done = TRUE; |
| 322 | } |
| 323 | |
| 324 | /* BUGBUG - Ignores the repeat count |
| 325 | It's questionable whether we want to obey the repeat count anyway |
| 326 | since keys usually aren't repeated unless key events back up in |
| 327 | the queue. If they're backing up then we don't generally want |
| 328 | to honor them later since that leads to significant slop in |
| 329 | cursor motion when the system is under heavy load. */ |
| 330 | |
| 331 | map = map_virt_key[event->wVirtualKeyCode]; |
| 332 | if (map == -1) |
| 333 | { |
| 334 | return 0; |
| 335 | } |
| 336 | else if (map == -2) |
| 337 | { |
| 338 | /* ASCII */ |
| 339 | emacs_ev->kind = ascii_keystroke; |
| 340 | win32_kbd_patch_key (event); |
| 341 | XSETINT (emacs_ev->code, event->uChar.AsciiChar); |
| 342 | } |
| 343 | else |
| 344 | { |
| 345 | /* non-ASCII */ |
| 346 | emacs_ev->kind = non_ascii_keystroke; |
| 347 | /* |
| 348 | * make_lispy_event () now requires non-ascii codes to have |
| 349 | * the full X keysym values (2nd byte is 0xff). add it on. |
| 350 | */ |
| 351 | map |= 0xff00; |
| 352 | XSETINT (emacs_ev->code, map); |
| 353 | } |
| 354 | XSETFRAME (emacs_ev->frame_or_window, get_frame ()); |
| 355 | emacs_ev->modifiers = win32_kbd_mods_to_emacs (event->dwControlKeyState); |
| 356 | emacs_ev->timestamp = GetTickCount (); |
| 357 | return 1; |
| 358 | } |
| 359 | |
| 360 | /* Mouse position hook. */ |
| 361 | void |
| 362 | win32_mouse_position (FRAME_PTR *f, |
| 363 | int insist, |
| 364 | Lisp_Object *bar_window, |
| 365 | enum scroll_bar_part *part, |
| 366 | Lisp_Object *x, |
| 367 | Lisp_Object *y, |
| 368 | unsigned long *time) |
| 369 | { |
| 370 | BLOCK_INPUT; |
| 371 | |
| 372 | insist = insist; |
| 373 | |
| 374 | *f = get_frame (); |
| 375 | *bar_window = Qnil; |
| 376 | *part = 0; |
| 377 | selected_frame->mouse_moved = 0; |
| 378 | |
| 379 | *x = movement_pos.X; |
| 380 | *y = movement_pos.Y; |
| 381 | *time = movement_time; |
| 382 | |
| 383 | UNBLOCK_INPUT; |
| 384 | } |
| 385 | |
| 386 | /* Remember mouse motion and notify emacs. */ |
| 387 | static void |
| 388 | mouse_moved_to (int x, int y) |
| 389 | { |
| 390 | /* If we're in the same place, ignore it */ |
| 391 | if (x != movement_pos.X || y != movement_pos.Y) |
| 392 | { |
| 393 | selected_frame->mouse_moved = 1; |
| 394 | movement_pos.X = x; |
| 395 | movement_pos.Y = y; |
| 396 | movement_time = GetTickCount (); |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | /* Consoles return button bits in a strange order: |
| 401 | least significant - Leftmost button |
| 402 | next - Rightmost button |
| 403 | next - Leftmost+1 |
| 404 | next - Leftmost+2... |
| 405 | |
| 406 | Assume emacs likes three button mice, so |
| 407 | Left == 0 |
| 408 | Middle == 1 |
| 409 | Right == 2 |
| 410 | Others increase from there. */ |
| 411 | |
| 412 | static int emacs_button_translation[NUM_MOUSE_BUTTONS] = |
| 413 | { |
| 414 | 0, 2, 1, 3, 4, |
| 415 | }; |
| 416 | |
| 417 | static int |
| 418 | do_mouse_event (MOUSE_EVENT_RECORD *event, |
| 419 | struct input_event *emacs_ev) |
| 420 | { |
| 421 | static DWORD button_state = 0; |
| 422 | DWORD but_change, mask; |
| 423 | int i; |
| 424 | |
| 425 | if (event->dwEventFlags == MOUSE_MOVED) |
| 426 | { |
| 427 | /* For movement events we just note that the mouse has moved |
| 428 | so that emacs will generate drag events. */ |
| 429 | mouse_moved_to (event->dwMousePosition.X, event->dwMousePosition.Y); |
| 430 | return 0; |
| 431 | } |
| 432 | |
| 433 | /* It looks like the console code sends us a mouse event with |
| 434 | dwButtonState == 0 when a window is activated. Ignore this case. */ |
| 435 | if (event->dwButtonState == button_state) |
| 436 | return 0; |
| 437 | |
| 438 | emacs_ev->kind = mouse_click; |
| 439 | |
| 440 | /* Find out what button has changed state since the last button event. */ |
| 441 | but_change = button_state ^ event->dwButtonState; |
| 442 | mask = 1; |
| 443 | for (i = 0; i < NUM_MOUSE_BUTTONS; i++, mask <<= 1) |
| 444 | if (but_change & mask) |
| 445 | { |
| 446 | XSETINT (emacs_ev->code, emacs_button_translation[i]); |
| 447 | break; |
| 448 | } |
| 449 | |
| 450 | /* If the changed button is out of emacs' range (highly unlikely) |
| 451 | ignore this event. */ |
| 452 | if (i == NUM_MOUSE_BUTTONS) |
| 453 | return 0; |
| 454 | |
| 455 | button_state = event->dwButtonState; |
| 456 | emacs_ev->timestamp = GetTickCount (); |
| 457 | emacs_ev->modifiers = win32_kbd_mods_to_emacs (event->dwControlKeyState) | |
| 458 | ((event->dwButtonState & mask) ? down_modifier : up_modifier); |
| 459 | |
| 460 | XSETFASTINT (emacs_ev->x, event->dwMousePosition.X); |
| 461 | XSETFASTINT (emacs_ev->y, event->dwMousePosition.Y); |
| 462 | XSETFRAME (emacs_ev->frame_or_window, get_frame ()); |
| 463 | |
| 464 | return 1; |
| 465 | } |
| 466 | |
| 467 | static void |
| 468 | resize_event (WINDOW_BUFFER_SIZE_RECORD *event) |
| 469 | { |
| 470 | FRAME_PTR f = get_frame (); |
| 471 | |
| 472 | change_frame_size (f, event->dwSize.Y, event->dwSize.X, 0, 1); |
| 473 | SET_FRAME_GARBAGED (f); |
| 474 | } |
| 475 | |
| 476 | int |
| 477 | win32_read_socket (int sd, struct input_event *bufp, int numchars, |
| 478 | int waitp, int expected) |
| 479 | { |
| 480 | BOOL no_events = TRUE; |
| 481 | int nev, ret = 0, add; |
| 482 | |
| 483 | if (interrupt_input_blocked) |
| 484 | { |
| 485 | interrupt_input_pending = 1; |
| 486 | return -1; |
| 487 | } |
| 488 | |
| 489 | interrupt_input_pending = 0; |
| 490 | BLOCK_INPUT; |
| 491 | |
| 492 | for (;;) |
| 493 | { |
| 494 | nev = fill_queue (waitp != 0); |
| 495 | if (nev <= 0) |
| 496 | { |
| 497 | /* If nev == -1, there was some kind of error |
| 498 | If nev == 0 then waitp must be zero and no events were available |
| 499 | so return. */ |
| 500 | UNBLOCK_INPUT; |
| 501 | return nev; |
| 502 | } |
| 503 | |
| 504 | while (nev > 0 && numchars > 0) |
| 505 | { |
| 506 | switch (queue_ptr->EventType) |
| 507 | { |
| 508 | case KEY_EVENT: |
| 509 | add = key_event (&queue_ptr->Event.KeyEvent, bufp); |
| 510 | bufp += add; |
| 511 | ret += add; |
| 512 | numchars -= add; |
| 513 | break; |
| 514 | |
| 515 | case MOUSE_EVENT: |
| 516 | add = do_mouse_event (&queue_ptr->Event.MouseEvent, bufp); |
| 517 | bufp += add; |
| 518 | ret += add; |
| 519 | numchars -= add; |
| 520 | break; |
| 521 | |
| 522 | case WINDOW_BUFFER_SIZE_EVENT: |
| 523 | resize_event (&queue_ptr->Event.WindowBufferSizeEvent); |
| 524 | break; |
| 525 | |
| 526 | case MENU_EVENT: |
| 527 | case FOCUS_EVENT: |
| 528 | /* Internal event types, ignored. */ |
| 529 | break; |
| 530 | } |
| 531 | |
| 532 | queue_ptr++; |
| 533 | nev--; |
| 534 | } |
| 535 | |
| 536 | if (ret > 0 || expected == 0) |
| 537 | break; |
| 538 | } |
| 539 | |
| 540 | UNBLOCK_INPUT; |
| 541 | return ret; |
| 542 | } |