i++;	/* If you go too fast, other windows may not get a change to release	 * any grab that they have. */	_XmMicroSleep(1000);    }    /* If we fall out of the loop without grabbing the pointer, its       time to give up */    XSync(dpy, 0);    if (val != GrabSuccess)	return False;    return True;}/***************************************************************************** * * UnGrab the pointer and keyboard * ****************************************************************************/extern voidMISC_Ungrab(ScreenInfo *scr){    Window w;    XSync(dpy, 0);    XUngrabPointer(dpy, CurrentTime);    if (scr->mwm_last_focus != NULL)    {	w = scr->mwm_last_focus->w;	/* if the window still exists, focus on it */	if (w)	{	    WIN_SetFocusInTree(scr->mwm_last_focus);	    WIN_SetFocus(scr, w, scr->mwm_last_focus);	}	scr->mwm_last_focus = NULL;    }    XSync(dpy, 0);}/* * Wait for all mouse buttons to be released  * This can ease some confusion on the part of the user sometimes  *  * Discard superflous button events during this wait period. */extern voidMISC_WaitForButtonsUp(ScreenInfo *scr){    Bool AllUp = False;    XEvent JunkEvent;    unsigned int mask;    while (!AllUp)    {	XAllowEvents(dpy, ReplayPointer, CurrentTime);	XQueryPointer(dpy, scr->root_win, &JunkRoot, &JunkChild,		      &JunkX, &JunkY, &JunkX, &JunkY, &mask);	if ((mask & (Button1Mask | Button2Mask | Button3Mask |		     Button4Mask | Button5Mask)) == 0)	    AllUp = True;    }    XSync(dpy, 0);    while (XCheckMaskEvent(dpy,			ButtonPressMask | ButtonReleaseMask | ButtonMotionMask,			   &JunkEvent))    {	MISC_StashEventTime(&JunkEvent);	XAllowEvents(dpy, ReplayPointer, CurrentTime);    }}/* * For menus, move, and resize operations, we can effect keyboard  * shortcuts by warping the pointer. */extern voidMISC_KeyboardShortcut(ScreenInfo *scr, XEvent *event, int ReturnEvent){    int x, y, x_root, y_root;    int move_size, x_move, y_move;    KeySym keysym;    /* Pick the size of the cursor movement */    move_size = scr->components[MWM_MENU].f_height + HEIGHT_EXTRA;    if (event->xkey.state & ControlMask)	move_size = 1;    if (event->xkey.state & ShiftMask)	move_size = 100;    keysym = XLookupKeysym(&event->xkey, 0);    x_move = 0;    y_move = 0;    switch (keysym)    {    case XK_Up:    case XK_k:    case XK_p:	y_move = -move_size;	break;    case XK_Down:    case XK_n:    case XK_j:	y_move = move_size;	break;    case XK_Left:    case XK_b:    case XK_h:	x_move = -move_size;	break;    case XK_Right:    case XK_f:    case XK_l:	x_move = move_size;	break;    case XK_Return:    case XK_space:	/* beat up the event */	event->type = ReturnEvent;	break;    default:	break;    }    XQueryPointer(dpy, scr->root_win, &JunkRoot, &event->xany.window,		  &x_root, &y_root, &x, &y, &JunkMask);    if ((x_move != 0) || (y_move != 0))    {	/* beat up the event */	XWarpPointer(dpy, None, scr->root_win, 0, 0, 0, 0, x_root + x_move,		     y_root + y_move);	/* beat up the event */	event->type = MotionNotify;	event->xkey.x += x_move;	event->xkey.y += y_move;	event->xkey.x_root += x_move;	event->xkey.y_root += y_move;    }}/* * find the root of a window tree */extern MwmWindow *MISC_RootOfTree(MwmWindow *win){    MwmWindow *anc;    if (win == NULL)	return NULL;    anc = win;    while (anc->ancestor != NULL)	anc = anc->ancestor;    return anc;}/* * print the window tree */extern voidMISC_PrintTree(ScreenInfo *scr){    print_window_tree(scr->mwm_root.next, 0);}/* * add a window to the window tree */extern voidMISC_AddToTree(ScreenInfo *scr, MwmWindow *win){    MwmWindow *tmp;    if ((win->flags & TRANSIENT) && win->transientfor != None)    {	tmp = find_by_window(&scr->mwm_root, win->transientfor);	if (tmp)	{	    add_child(tmp, win);	    return;	}    }    if (win->wmhints && (win->wmhints->flags & WindowGroupHint))    {	tmp = find_by_group(&scr->mwm_root, win->wmhints->window_group);	if (tmp && tmp->ancestor != NULL)	{	    add_child(tmp->ancestor, win);	    return;	}    }    win->next = scr->mwm_root.next;    if (scr->mwm_root.next != NULL)	scr->mwm_root.next->prev = win;    win->prev = &scr->mwm_root;    scr->mwm_root.next = win;}/* * remove a window from the window tree */extern voidMISC_RemoveFromTree(ScreenInfo *scr, MwmWindow *win){    if (win->ancestor != NULL)    {	remove_child(win->ancestor, win);    }    else    {	if (win->prev != NULL)	    win->prev->next = win->next;	if (win->next != NULL)	    win->next->prev = win->prev;    }}/* * after starting, fix up the transients whose parent windows weren't * captured yet */extern voidMISC_FixupTransients(ScreenInfo *scr){    MwmWindow *tmp, *ptr;    for (tmp = scr->mwm_root.next; tmp != NULL;)    {	ptr = tmp->next;	if (tmp->flags & TRANSIENT)	{	    tmp->ancestor = NULL;	    MISC_RemoveFromTree(scr, tmp);	    tmp->prev = tmp->next = NULL;	    MISC_AddToTree(scr, tmp);	}	tmp = ptr;    }    /* under the assumption that their parent may not be found, clear the     * transient flag */    for (tmp = scr->mwm_root.next; tmp != NULL; tmp = tmp->next)    {	if (tmp->flags & TRANSIENT)	{	    tmp->flags &= ~TRANSIENT;	    tmp->ancestor = NULL;	}    }}extern voidMISC_DestroyChildren(ScreenInfo *scr, MwmWindow *win){    MwmWindow *child, *tmp;    for (child = win->child; child != NULL; child = tmp)    {	tmp = child->next;	WIN_DestroyWindow(scr, child);    }}/* Debugging purposes only */extern const char *_MwmPrintF(int x){	switch(x) {	case F_NOP:	return "F_NOP";	case F_BEEP:	return "F_BEEP";	case F_CHANGE_WINDOWS_DESK:	return "F_CHANGE_WINDOWS_DESK";	case F_CIRCULATE_DOWN:	return "F_CIRCULATE_DOWN";	case F_CIRCULATE_UP:	return "F_CIRCULATE_UP";	case F_CLOSE:	return "F_CLOSE";	case F_DESK:	return "F_DESK";	case F_EXEC:	return "F_EXEC";	case F_FOCUS:	return "F_FOCUS";	case F_FOCUS_COLOR:	return "F_FOCUS_COLOR";	case F_FOCUS_KEY:	return "F_FOCUS_KEY";	case F_GOTO_PAGE:	return "F_GOTO_PAGE";	case F_ICONIFY:	return "F_ICONIFY";	case F_LOWER:	return "F_LOWER";	case F_MAXIMIZE:	return "F_MAXIMIZE";	case F_MOVE:	return "F_MOVE";	case F_MOVECURSOR:	return "F_MOVECURSOR";	case F_NEXT_CMAP:	return "F_NEXT_CMAP";	case F_NEXT_KEY:	return "F_NEXT_KEY";	case F_NORMALIZE:	return "F_NORMALIZE";	case F_NORM_AND_RAISE:	return "F_NORM_AND_RAISE";	case F_PACK_ICONS:	return "F_PACK_ICONS";	case F_PASS_KEYS:	return "F_PASS_KEYS";	case F_POPUP:	return "F_POPUP";	case F_PREV_CMAP:	return "F_PREV_CMAP";	case F_PREV_KEY:	return "F_PREV_KEY";	case F_QUIT:	return "F_QUIT";	case F_RAISE:	return "F_RAISE";	case F_RAISE_IT:	return "F_RAISE_IT";	case F_RAISELOWER:	return "F_RAISELOWER";	case F_RESIZE:	return "F_RESIZE";	case F_RESTART:	return "F_RESTART";	case F_REFRESH:	return "F_REFRESH";	case F_REFRESH_WIN:	return "F_REFRESH_WIN";	case F_RESTORE_AND_RAISE:	return "F_RESTORE_AND_RAISE";	case F_SCREEN:	return "F_SCREEN";	case F_SCROLL:	return "F_SCROLL";	case F_SEND_MSG:	return "F_SEND_MSG";	case F_SET_BEHAVIOR:	return "F_SET_BEHAVIOR";	case F_STICK:	return "F_STICK";	case F_TITLE:	return "F_TITLE";	case F_TOGGLE_PAGE:	return "F_TOGGLE_PAGE";	case F_WARP:	return "F_WARP";	case F_WINDOWLIST:	return "F_WINDOWLIST";	case F_W_POPUP:	return "F_W_POPUP";	default:	return "??";	}}extern const char *_MwmPrintC(int x){	static char res[256];	res[0] = 0;	if (x == C_NO_CONTEXT)		return "C_NO_CONTEXT";	if (x & C_WINDOW)		strcat(res, " | C_WINDOW");	if (x & C_TITLE)		strcat(res, " | C_TITLE");	if (x & C_ICON)		strcat(res, " | C_ICON");	if (x & C_ROOT)		strcat(res, " | C_ROOT");	if (x & C_FRAME)		strcat(res, " | C_FRAME");	if (x & C_MENUB)		strcat(res, " | C_MENUB");	if (x & C_MINIMIZEB)		strcat(res, " | C_MINIMIZEB");	if (x & C_MAXIMIZEB)		strcat(res, " | C_MAXIMIZEB");	return &res[2];}