| 1 | /* Copyright Massachusetts Institute of Technology 1985 */ |
| 2 | |
| 3 | #include "copyright.h" |
| 4 | |
| 5 | /* |
| 6 | Copyright (C) 2001-2013 Free Software Foundation, Inc. |
| 7 | |
| 8 | This program is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | /* |
| 22 | * XMenu: MIT Project Athena, X Window system menu package |
| 23 | * |
| 24 | * XMenuActivate - Maps a given menu to the display and activates |
| 25 | * the menu for user selection. The user is allowed to |
| 26 | * specify which pane and selection will be current, |
| 27 | * the X and Y location of the menu (relative to the |
| 28 | * parent window) and the mouse button event mask that |
| 29 | * will be used to identify a selection request. |
| 30 | * |
| 31 | * A menu selection is shown to be current by placing |
| 32 | * a highlight box around the selection as the mouse |
| 33 | * cursor enters its active region. Inactive selections |
| 34 | * will not be highlighted. As the mouse cursor moved |
| 35 | * from one menu pane to another menu pane the pane being |
| 36 | * entered is raised and made current and the pane being |
| 37 | * left is lowered. |
| 38 | * |
| 39 | * Anytime XMenuActivate returns, the p_num and |
| 40 | * s_num are left at their last known values (i.e., |
| 41 | * the last known current pane and selection indices). |
| 42 | * The following are the defined return states: |
| 43 | * |
| 44 | * 1) If at any time an error occurs the data |
| 45 | * pointer is left untouched and XM_FAILURE |
| 46 | * is returned. |
| 47 | * |
| 48 | * 2) When a selection request is received (i.e., |
| 49 | * when the specified mouse event occurs) the |
| 50 | * data pointer will be set to the data |
| 51 | * associated with the particular selection |
| 52 | * current at the time of the selection request |
| 53 | * and XM_SUCCESS is returned. |
| 54 | * |
| 55 | * 3) If no selection was current at the time a |
| 56 | * selection request is made the data pointer |
| 57 | * will be left untouched and XM_NO_SELECT will |
| 58 | * be returned. |
| 59 | * |
| 60 | * 4) If the selection that was current at the time |
| 61 | * a selection request is made is not an active |
| 62 | * selection the data pointer will be left |
| 63 | * untouched and XM_IA_SELECT will be returned. |
| 64 | * |
| 65 | * Since X processes events in an asynchronous manner |
| 66 | * it is likely that XMenuActivate will encounter |
| 67 | * a "foreign event" while it is executing. Foreign |
| 68 | * events are handled in one of three ways: |
| 69 | * |
| 70 | * 1) The event is discarded. This is the default |
| 71 | * mode and requires no action on the part of the |
| 72 | * application. |
| 73 | * |
| 74 | * 2) The application has identified an asynchronous |
| 75 | * event handler that will be called and the |
| 76 | * foreign event handed off to it. Note: |
| 77 | * AEQ mode disables this mode temporarily. |
| 78 | * |
| 79 | * 3) The application has enabled asynchronous event |
| 80 | * queuing mode. In this mode all foreign events |
| 81 | * will be queued up until XMenuActivate |
| 82 | * terminates; at which time they will be |
| 83 | * returned to the X event queue. As long as |
| 84 | * AEQ mode is enabled any asynchronous event |
| 85 | * handler as temporarily disabled. |
| 86 | * |
| 87 | * Any events encountered while taking down the menu |
| 88 | * (i.e., exposure events from occluded windows) will |
| 89 | * automatically be returned to the X event queue after |
| 90 | * XMenuActivate has cleaned the queue of any of its own |
| 91 | * events that are no longer needed. |
| 92 | * |
| 93 | * Author: Tony Della Fera, DEC |
| 94 | * March 12, 1986 |
| 95 | * |
| 96 | */ |
| 97 | |
| 98 | #include <config.h> |
| 99 | #include "XMenuInt.h" |
| 100 | #include <X11/keysym.h> |
| 101 | |
| 102 | /* For debug, set this to 0 to not grab the keyboard on menu popup */ |
| 103 | int x_menu_grab_keyboard = 1; |
| 104 | |
| 105 | static Wait_func wait_func; |
| 106 | static void* wait_data; |
| 107 | |
| 108 | void |
| 109 | XMenuActivateSetWaitFunction (Wait_func func, void *data) |
| 110 | { |
| 111 | wait_func = func; |
| 112 | wait_data = data; |
| 113 | } |
| 114 | |
| 115 | int |
| 116 | XMenuActivate( |
| 117 | register Display *display, /* Display to put menu on. */ |
| 118 | register XMenu *menu, /* Menu to activate. */ |
| 119 | int *p_num, /* Pane number selected. */ |
| 120 | int *s_num, /* Selection number selected. */ |
| 121 | int x_pos, /* X coordinate of menu position. */ |
| 122 | int y_pos, /* Y coordinate of menu position. */ |
| 123 | unsigned int event_mask, /* Mouse button event mask. */ |
| 124 | char **data, /* Pointer to return data value. */ |
| 125 | void (*help_callback) (char const *, int, int)) /* Help callback. */ |
| 126 | { |
| 127 | int status; /* X routine call status. */ |
| 128 | int orig_x; /* Upper left menu origin X coord. */ |
| 129 | int orig_y; /* Upper left menu origin Y coord. */ |
| 130 | int ret_val; /* Return value. */ |
| 131 | |
| 132 | register XMPane *p_ptr; /* Current XMPane. */ |
| 133 | register XMPane *event_xmp; /* Event XMPane pointer. */ |
| 134 | register XMPane *cur_p; /* Current pane. */ |
| 135 | register XMSelect *cur_s; /* Current selection. */ |
| 136 | XMWindow *event_xmw; /* Event XMWindow pointer. */ |
| 137 | XEvent event; /* X input event. */ |
| 138 | XEvent peek_event; /* X input peek ahead event. */ |
| 139 | |
| 140 | Bool selection = False; /* Selection has been made. */ |
| 141 | Bool forward = True; /* Moving forward in the pane list. */ |
| 142 | |
| 143 | Window root, child; |
| 144 | int root_x, root_y, win_x, win_y; |
| 145 | unsigned int mask; |
| 146 | KeySym keysym; |
| 147 | |
| 148 | /* |
| 149 | * Define and allocate a foreign event queue to hold events |
| 150 | * that don't belong to XMenu. These events are later restored |
| 151 | * to the X event queue. |
| 152 | */ |
| 153 | typedef struct _xmeventque { |
| 154 | XEvent event; |
| 155 | struct _xmeventque *next; |
| 156 | } XMEventQue; |
| 157 | |
| 158 | XMEventQue *feq = NULL; /* Foreign event queue. */ |
| 159 | XMEventQue *feq_tmp; /* Foreign event queue temporary. */ |
| 160 | |
| 161 | /* |
| 162 | * If there are no panes in the menu then return failure |
| 163 | * because the menu is not initialized. |
| 164 | */ |
| 165 | if (menu->p_count == 0) { |
| 166 | _XMErrorCode = XME_NOT_INIT; |
| 167 | return(XM_FAILURE); |
| 168 | } |
| 169 | |
| 170 | /* |
| 171 | * Find the desired current pane. |
| 172 | */ |
| 173 | cur_p = _XMGetPanePtr(menu, *p_num); |
| 174 | if (cur_p == NULL) { |
| 175 | return(XM_FAILURE); |
| 176 | } |
| 177 | cur_p->activated = cur_p->active; |
| 178 | |
| 179 | /* |
| 180 | * Find the desired current selection. |
| 181 | * If the current selection index is out of range a null current selection |
| 182 | * will be assumed and the cursor will be placed in the current pane |
| 183 | * header. |
| 184 | */ |
| 185 | cur_s = _XMGetSelectionPtr(cur_p, *s_num); |
| 186 | |
| 187 | /* |
| 188 | * Compute origin of menu so that cursor is in |
| 189 | * Correct pane and selection. |
| 190 | */ |
| 191 | _XMTransToOrigin(display, |
| 192 | menu, |
| 193 | cur_p, cur_s, |
| 194 | x_pos, y_pos, |
| 195 | &orig_x, &orig_y); |
| 196 | menu->x_pos = orig_x; /* Store X and Y coords of menu. */ |
| 197 | menu->y_pos = orig_y; |
| 198 | |
| 199 | if (XMenuRecompute(display, menu) == XM_FAILURE) { |
| 200 | return(XM_FAILURE); |
| 201 | } |
| 202 | |
| 203 | /* |
| 204 | * Flush the window creation queue. |
| 205 | * This batches all window creates since lazy evaluation |
| 206 | * is more efficient than individual evaluation. |
| 207 | * This routine also does an XFlush(). |
| 208 | */ |
| 209 | if (_XMWinQueFlush(display, menu, cur_p, cur_s) == _FAILURE) { |
| 210 | return(XM_FAILURE); |
| 211 | } |
| 212 | |
| 213 | /* |
| 214 | * Make sure windows are in correct order (in case we were passed |
| 215 | * an already created menu in incorrect order.) |
| 216 | */ |
| 217 | for(p_ptr = menu->p_list->next; p_ptr != cur_p; p_ptr = p_ptr->next) |
| 218 | XRaiseWindow(display, p_ptr->window); |
| 219 | for(p_ptr = menu->p_list->prev; p_ptr != cur_p->prev; p_ptr = p_ptr->prev) |
| 220 | XRaiseWindow(display, p_ptr->window); |
| 221 | |
| 222 | /* |
| 223 | * Make sure all selection windows are mapped. |
| 224 | */ |
| 225 | for ( |
| 226 | p_ptr = menu->p_list->next; |
| 227 | p_ptr != menu->p_list; |
| 228 | p_ptr = p_ptr->next |
| 229 | ){ |
| 230 | XMapSubwindows(display, p_ptr->window); |
| 231 | } |
| 232 | |
| 233 | /* |
| 234 | * Synchronize the X buffers and the event queue. |
| 235 | * From here on, all events in the queue that don't belong to |
| 236 | * XMenu are sent back to the application via an application |
| 237 | * provided event handler or discarded if the application has |
| 238 | * not provided an event handler. |
| 239 | */ |
| 240 | XSync(display, 0); |
| 241 | |
| 242 | /* |
| 243 | * Grab the mouse for menu input. |
| 244 | */ |
| 245 | |
| 246 | status = XGrabPointer( |
| 247 | display, |
| 248 | menu->parent, |
| 249 | True, |
| 250 | event_mask, |
| 251 | GrabModeAsync, |
| 252 | GrabModeAsync, |
| 253 | None, |
| 254 | menu->mouse_cursor, |
| 255 | CurrentTime |
| 256 | ); |
| 257 | if (status == Success && x_menu_grab_keyboard) |
| 258 | { |
| 259 | status = XGrabKeyboard (display, |
| 260 | menu->parent, |
| 261 | False, |
| 262 | GrabModeAsync, |
| 263 | GrabModeAsync, |
| 264 | CurrentTime); |
| 265 | if (status != Success) |
| 266 | XUngrabPointer(display, CurrentTime); |
| 267 | } |
| 268 | |
| 269 | if (status == _X_FAILURE) { |
| 270 | _XMErrorCode = XME_GRAB_MOUSE; |
| 271 | return(XM_FAILURE); |
| 272 | } |
| 273 | |
| 274 | /* |
| 275 | * Map the menu panes. |
| 276 | */ |
| 277 | XMapWindow(display, cur_p->window); |
| 278 | for (p_ptr = menu->p_list->next; |
| 279 | p_ptr != cur_p; |
| 280 | p_ptr = p_ptr->next) |
| 281 | XMapWindow(display, p_ptr->window); |
| 282 | for (p_ptr = cur_p->next; |
| 283 | p_ptr != menu->p_list; |
| 284 | p_ptr = p_ptr->next) |
| 285 | XMapWindow(display, p_ptr->window); |
| 286 | |
| 287 | XRaiseWindow(display, cur_p->window); /* Make sure current */ |
| 288 | /* pane is on top. */ |
| 289 | |
| 290 | cur_s = NULL; /* Clear current selection. */ |
| 291 | |
| 292 | /* |
| 293 | * Begin event processing loop. |
| 294 | */ |
| 295 | while (1) { |
| 296 | if (wait_func) (*wait_func) (wait_data); |
| 297 | XNextEvent(display, &event); /* Get next event. */ |
| 298 | switch (event.type) { /* Dispatch on the event type. */ |
| 299 | case Expose: |
| 300 | event_xmp = (XMPane *)XLookUpAssoc(display, |
| 301 | menu->assoc_tab, |
| 302 | event.xexpose.window); |
| 303 | if (event_xmp == NULL) { |
| 304 | /* |
| 305 | * If AEQ mode is enabled then queue the event. |
| 306 | */ |
| 307 | if (menu->aeq) { |
| 308 | feq_tmp = (XMEventQue *)malloc(sizeof(XMEventQue)); |
| 309 | if (feq_tmp == NULL) { |
| 310 | _XMErrorCode = XME_CALLOC; |
| 311 | return(XM_FAILURE); |
| 312 | } |
| 313 | feq_tmp->event = event; |
| 314 | feq_tmp->next = feq; |
| 315 | feq = feq_tmp; |
| 316 | } |
| 317 | else if (_XMEventHandler) (*_XMEventHandler)(&event); |
| 318 | break; |
| 319 | } |
| 320 | if (event_xmp->activated) { |
| 321 | XSetWindowBackground(display, |
| 322 | event_xmp->window, |
| 323 | menu->bkgnd_color); |
| 324 | } |
| 325 | else { |
| 326 | XSetWindowBackgroundPixmap(display, |
| 327 | event_xmp->window, |
| 328 | menu->inact_pixmap); |
| 329 | } |
| 330 | _XMRefreshPane(display, menu, event_xmp); |
| 331 | break; |
| 332 | case EnterNotify: |
| 333 | /* |
| 334 | * First wait a small period of time, and see |
| 335 | * if another EnterNotify event follows hard on the |
| 336 | * heels of this one. i.e., the user is simply |
| 337 | * "passing through". If so, ignore this one. |
| 338 | */ |
| 339 | |
| 340 | event_xmw = (XMWindow *)XLookUpAssoc(display, |
| 341 | menu->assoc_tab, |
| 342 | event.xcrossing.window); |
| 343 | if (event_xmw == NULL) break; |
| 344 | if (event_xmw->type == SELECTION) { |
| 345 | /* |
| 346 | * We have entered a selection. |
| 347 | */ |
| 348 | /* if (XPending(display) == 0) usleep(150000); */ |
| 349 | if (XPending(display) != 0) { |
| 350 | XPeekEvent(display, &peek_event); |
| 351 | if(peek_event.type == LeaveNotify) { |
| 352 | break; |
| 353 | } |
| 354 | } |
| 355 | cur_s = (XMSelect *)event_xmw; |
| 356 | help_callback (cur_s->help_string, |
| 357 | cur_p->serial, cur_s->serial); |
| 358 | |
| 359 | /* |
| 360 | * If the pane we are in is active and the |
| 361 | * selection entered is active then activate |
| 362 | * the selection. |
| 363 | */ |
| 364 | if (cur_p->active && cur_s->active > 0) { |
| 365 | cur_s->activated = 1; |
| 366 | _XMRefreshSelection(display, menu, cur_s); |
| 367 | } |
| 368 | } |
| 369 | else { |
| 370 | /* |
| 371 | * We have entered a pane. |
| 372 | */ |
| 373 | /* if (XPending(display) == 0) usleep(150000); */ |
| 374 | if (XPending(display) != 0) { |
| 375 | XPeekEvent(display, &peek_event); |
| 376 | if (peek_event.type == EnterNotify) break; |
| 377 | } |
| 378 | XQueryPointer(display, |
| 379 | menu->parent, |
| 380 | &root, &child, |
| 381 | &root_x, &root_y, |
| 382 | &win_x, &win_y, |
| 383 | &mask); |
| 384 | event_xmp = (XMPane *)XLookUpAssoc(display, |
| 385 | menu->assoc_tab, |
| 386 | child); |
| 387 | if (event_xmp == NULL) break; |
| 388 | if (event_xmp == cur_p) break; |
| 389 | if (event_xmp->serial > cur_p->serial) forward = True; |
| 390 | else forward = False; |
| 391 | p_ptr = cur_p; |
| 392 | while (p_ptr != event_xmp) { |
| 393 | if (forward) p_ptr = p_ptr->next; |
| 394 | else p_ptr = p_ptr->prev; |
| 395 | XRaiseWindow(display, p_ptr->window); |
| 396 | } |
| 397 | if (cur_p->activated) { |
| 398 | cur_p->activated = False; |
| 399 | XSetWindowBackgroundPixmap(display, |
| 400 | cur_p->window, |
| 401 | menu->inact_pixmap); |
| 402 | _XMRefreshPane(display, menu, cur_p); |
| 403 | } |
| 404 | if (event_xmp->active) event_xmp->activated = True; |
| 405 | #if 1 |
| 406 | /* |
| 407 | * i suspect the we don't get an EXPOSE event when backing |
| 408 | * store is enabled; the menu windows content is probably |
| 409 | * not drawn in when it should be in that case. |
| 410 | * in that case, this is probably an ugly fix! |
| 411 | * i hope someone more familiar with this code would |
| 412 | * take it from here. -- caveh@eng.sun.com. |
| 413 | */ |
| 414 | XSetWindowBackground(display, |
| 415 | event_xmp->window, |
| 416 | menu->bkgnd_color); |
| 417 | _XMRefreshPane(display, menu, event_xmp); |
| 418 | #endif |
| 419 | cur_p = event_xmp; |
| 420 | } |
| 421 | break; |
| 422 | case LeaveNotify: |
| 423 | event_xmw = (XMWindow *)XLookUpAssoc( |
| 424 | display, |
| 425 | menu->assoc_tab, |
| 426 | event.xcrossing.window |
| 427 | ); |
| 428 | if (event_xmw == NULL) break; |
| 429 | if(cur_s == NULL) break; |
| 430 | |
| 431 | /* |
| 432 | * If the current selection was activated then |
| 433 | * deactivate it. |
| 434 | */ |
| 435 | if (cur_s->activated) { |
| 436 | cur_s->activated = False; |
| 437 | _XMRefreshSelection(display, menu, cur_s); |
| 438 | } |
| 439 | cur_s = NULL; |
| 440 | break; |
| 441 | |
| 442 | case ButtonPress: |
| 443 | case ButtonRelease: |
| 444 | *p_num = cur_p->serial; |
| 445 | /* |
| 446 | * Check to see if there is a current selection. |
| 447 | */ |
| 448 | if (cur_s != NULL) { |
| 449 | /* |
| 450 | * Set the selection number to the current selection. |
| 451 | */ |
| 452 | *s_num = cur_s->serial; |
| 453 | /* |
| 454 | * If the current selection was activated then |
| 455 | * we have a valid selection otherwise we have |
| 456 | * an inactive selection. |
| 457 | */ |
| 458 | if (cur_s->activated) { |
| 459 | *data = cur_s->data; |
| 460 | ret_val = XM_SUCCESS; |
| 461 | } |
| 462 | else { |
| 463 | ret_val = XM_IA_SELECT; |
| 464 | } |
| 465 | } |
| 466 | else { |
| 467 | /* |
| 468 | * No selection was current. |
| 469 | */ |
| 470 | ret_val = XM_NO_SELECT; |
| 471 | } |
| 472 | selection = True; |
| 473 | break; |
| 474 | case KeyPress: |
| 475 | case KeyRelease: |
| 476 | keysym = XLookupKeysym (&event.xkey, 0); |
| 477 | |
| 478 | /* Pop down on C-g and Escape. */ |
| 479 | if ((keysym == XK_g && (event.xkey.state & ControlMask) != 0) |
| 480 | || keysym == XK_Escape) /* Any escape, ignore modifiers. */ |
| 481 | { |
| 482 | ret_val = XM_NO_SELECT; |
| 483 | selection = True; |
| 484 | } |
| 485 | break; |
| 486 | default: |
| 487 | /* |
| 488 | * If AEQ mode is enabled then queue the event. |
| 489 | */ |
| 490 | if (menu->aeq) { |
| 491 | feq_tmp = (XMEventQue *)malloc(sizeof(XMEventQue)); |
| 492 | if (feq_tmp == NULL) { |
| 493 | _XMErrorCode = XME_CALLOC; |
| 494 | return(XM_FAILURE); |
| 495 | } |
| 496 | feq_tmp->event = event; |
| 497 | feq_tmp->next = feq; |
| 498 | feq = feq_tmp; |
| 499 | } |
| 500 | else if (_XMEventHandler) (*_XMEventHandler)(&event); |
| 501 | } |
| 502 | /* |
| 503 | * If a selection has been made, break out of the event loop. |
| 504 | */ |
| 505 | if (selection == True) break; |
| 506 | } |
| 507 | |
| 508 | /* |
| 509 | * Unmap the menu. |
| 510 | */ |
| 511 | for ( p_ptr = menu->p_list->next; |
| 512 | p_ptr != menu->p_list; |
| 513 | p_ptr = p_ptr->next) |
| 514 | { |
| 515 | XUnmapWindow(display, p_ptr->window); |
| 516 | } |
| 517 | |
| 518 | /* |
| 519 | * Ungrab the mouse. |
| 520 | */ |
| 521 | XUngrabPointer(display, CurrentTime); |
| 522 | XUngrabKeyboard(display, CurrentTime); |
| 523 | |
| 524 | /* |
| 525 | * Restore bits under where the menu was if we managed |
| 526 | * to save them and free the pixmap. |
| 527 | */ |
| 528 | |
| 529 | /* |
| 530 | * If there is a current selection deactivate it. |
| 531 | */ |
| 532 | if (cur_s != NULL) cur_s->activated = 0; |
| 533 | |
| 534 | /* |
| 535 | * Deactivate the current pane. |
| 536 | */ |
| 537 | cur_p->activated = 0; |
| 538 | XSetWindowBackgroundPixmap(display, cur_p->window, menu->inact_pixmap); |
| 539 | |
| 540 | /* |
| 541 | * Synchronize the X buffers and the X event queue. |
| 542 | */ |
| 543 | XSync(display, 0); |
| 544 | |
| 545 | /* |
| 546 | * Dispatch any events remaining on the queue. |
| 547 | */ |
| 548 | while (QLength(display)) { |
| 549 | /* |
| 550 | * Fetch the next event. |
| 551 | */ |
| 552 | XNextEvent(display, &event); |
| 553 | |
| 554 | /* |
| 555 | * Discard any events left on the queue that belong to XMenu. |
| 556 | * All others are held and then returned to the event queue. |
| 557 | */ |
| 558 | switch (event.type) { |
| 559 | case Expose: |
| 560 | case EnterNotify: |
| 561 | case LeaveNotify: |
| 562 | case ButtonPress: |
| 563 | case ButtonRelease: |
| 564 | /* |
| 565 | * Does this event belong to one of XMenu's windows? |
| 566 | * If so, discard it and process the next event. |
| 567 | * If not fall through and treat it as a foreign event. |
| 568 | */ |
| 569 | event_xmp = (XMPane *)XLookUpAssoc( |
| 570 | display, |
| 571 | menu->assoc_tab, |
| 572 | event.xbutton.window |
| 573 | ); |
| 574 | if (event_xmp != NULL) continue; |
| 575 | default: |
| 576 | /* |
| 577 | * This is a foreign event. |
| 578 | * Queue it for later return to the X event queue. |
| 579 | */ |
| 580 | feq_tmp = (XMEventQue *)malloc(sizeof(XMEventQue)); |
| 581 | if (feq_tmp == NULL) { |
| 582 | _XMErrorCode = XME_CALLOC; |
| 583 | return(XM_FAILURE); |
| 584 | } |
| 585 | feq_tmp->event = event; |
| 586 | feq_tmp->next = feq; |
| 587 | feq = feq_tmp; |
| 588 | } |
| 589 | } |
| 590 | /* |
| 591 | * Return any foreign events that were queued to the X event queue. |
| 592 | */ |
| 593 | while (feq != NULL) { |
| 594 | feq_tmp = feq; |
| 595 | XPutBackEvent(display, &feq_tmp->event); |
| 596 | feq = feq_tmp->next; |
| 597 | free((char *)feq_tmp); |
| 598 | } |
| 599 | |
| 600 | wait_func = 0; |
| 601 | |
| 602 | /* |
| 603 | * Return successfully. |
| 604 | */ |
| 605 | _XMErrorCode = XME_NO_ERROR; |
| 606 | return(ret_val); |
| 607 | |
| 608 | } |