/* Generic frame functions.
- Copyright (C) 1993, 1994, 1995, 1997 Free Software Foundation.
+ Copyright (C) 1993, 1994, 1995, 1997, 1999 Free Software Foundation.
This file is part of GNU Emacs.
#include <config.h>
#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
#include "lisp.h"
#include "charset.h"
#ifdef HAVE_X_WINDOWS
#include "dosfns.h"
#endif
+#ifdef macintosh
+extern struct mac_output *NewMacWindow ();
+extern void DisposeMacWindow (struct mac_output *);
+#endif
+
/* Evaluate this expression to rebuild the section of syms_of_frame
that initializes and staticpros the symbols declared below. Note
that Emacs 18 has a bug that keeps C-x C-e from being able to
Lisp_Object Qonly;
Lisp_Object Qunsplittable;
Lisp_Object Qmenu_bar_lines;
-Lisp_Object Qtoolbar_lines;
+Lisp_Object Qtool_bar_lines;
Lisp_Object Qwidth;
Lisp_Object Qx;
Lisp_Object Qw32;
Lisp_Object Qpc;
+Lisp_Object Qmac;
Lisp_Object Qvisible;
Lisp_Object Qbuffer_predicate;
Lisp_Object Qbuffer_list;
staticpro (&Qunsplittable);
Qmenu_bar_lines = intern ("menu-bar-lines");
staticpro (&Qmenu_bar_lines);
- Qtoolbar_lines = intern ("toolbar-lines");
- staticpro (&Qtoolbar_lines);
+ Qtool_bar_lines = intern ("tool-bar-lines");
+ staticpro (&Qtool_bar_lines);
Qwidth = intern ("width");
staticpro (&Qwidth);
Qx = intern ("x");
staticpro (&Qw32);
Qpc = intern ("pc");
staticpro (&Qpc);
+ Qmac = intern ("mac");
+ staticpro (&Qmac);
Qvisible = intern ("visible");
staticpro (&Qvisible);
Qbuffer_predicate = intern ("buffer-predicate");
return Qw32;
case output_msdos_raw:
return Qpc;
+ case output_mac:
+ return Qmac;
default:
abort ();
}
f->namebuf = 0;
f->title = Qnil;
f->menu_bar_window = Qnil;
- f->toolbar_window = Qnil;
- f->desired_toolbar_items = f->current_toolbar_items = Qnil;
- f->desired_toolbar_string = f->current_toolbar_string = Qnil;
- f->n_desired_toolbar_items = f->n_current_toolbar_items = 0;
+ f->tool_bar_window = Qnil;
+ f->desired_tool_bar_items = f->current_tool_bar_items = Qnil;
+ f->desired_tool_bar_string = f->current_tool_bar_string = Qnil;
+ f->n_desired_tool_bar_items = f->n_current_tool_bar_items = 0;
root_window = make_window ();
if (mini_p)
#ifdef MSDOS
f->output_data.x = &the_only_x_display;
f->output_method = output_msdos_raw;
-#else /* not MSDOS */
+#endif /* MSDOS */
+
+#ifdef macintosh
+ f->output_data.mac = NewMacWindow(f);
+ f->output_data.mac->background_pixel = 0xffffff;
+ f->output_data.mac->foreground_pixel = 0;
+ f->output_data.mac->n_param_faces = 0;
+ f->output_data.mac->n_computed_faces = 0;
+ f->output_data.mac->size_computed_faces = 0;
+ f->output_method = output_mac;
+ f->auto_raise = 1;
+ f->auto_lower = 1;
+ init_frame_faces (f);
+#endif /* macintosh */
+
+#ifndef MSDOS
+#ifndef macintosh
f->output_data.nothing = 1; /* Nonzero means frame isn't deleted. */
#endif
+#endif
+
if (!noninteractive)
init_frame_faces (f);
return f;
Lisp_Object parms;
{
struct frame *f;
- Lisp_Object frame;
- Lisp_Object tem;
+ Lisp_Object frame, tem;
+ struct frame *sf = SELECTED_FRAME ();
#ifdef MSDOS
- if (selected_frame->output_method != output_msdos_raw)
+ if (sf->output_method != output_msdos_raw)
abort ();
+#else /* not MSDOS */
+
+#ifdef macintosh
+ if (sf->output_method != output_mac)
+ error ("Not running on a Macintosh screen; cannot make a new Macintosh frame");
#else
- if (selected_frame->output_method != output_termcap)
+ if (sf->output_method != output_termcap)
error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
#endif
+#endif /* not MSDOS */
f = make_terminal_frame ();
- change_frame_size (f, FRAME_HEIGHT (selected_frame),
- FRAME_WIDTH (selected_frame), 0, 0);
+
+ change_frame_size (f, FRAME_HEIGHT (sf),
+ FRAME_WIDTH (sf), 0, 0, 0);
adjust_glyphs (f);
calculate_costs (f);
XSETFRAME (frame, f);
/* Make the frame face alist be frame-specific, so that each
frame could change its face definitions independently. */
- f->face_alist = Fcopy_alist (selected_frame->face_alist);
+ f->face_alist = Fcopy_alist (sf->face_alist);
/* Simple Fcopy_alist isn't enough, because we need the contents of
the vectors which are the CDRs of associations in face_alist to
be copied as well. */
Lisp_Object frame, no_enter;
int track;
{
+ struct frame *sf = SELECTED_FRAME ();
+
/* If FRAME is a switch-frame event, extract the frame we should
switch to. */
if (CONSP (frame)
- && EQ (XCONS (frame)->car, Qswitch_frame)
- && CONSP (XCONS (frame)->cdr))
- frame = XCONS (XCONS (frame)->cdr)->car;
+ && EQ (XCAR (frame), Qswitch_frame)
+ && CONSP (XCDR (frame)))
+ frame = XCAR (XCDR (frame));
/* This used to say CHECK_LIVE_FRAME, but apparently it's possible for
a switch-frame event to arrive after a frame is no longer live,
if (! FRAME_LIVE_P (XFRAME (frame)))
return Qnil;
- if (selected_frame == XFRAME (frame))
+ if (sf == XFRAME (frame))
return frame;
/* This is too greedy; it causes inappropriate focus redirection
{
Lisp_Object tail;
- for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
+ for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object focus;
- if (!FRAMEP (XCONS (tail)->car))
+ if (!FRAMEP (XCAR (tail)))
abort ();
- focus = FRAME_FOCUS_FRAME (XFRAME (XCONS (tail)->car));
+ focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
- if (FRAMEP (focus) && XFRAME (focus) == selected_frame)
- Fredirect_frame_focus (XCONS (tail)->car, frame);
+ if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
+ Fredirect_frame_focus (XCAR (tail), frame);
}
}
#else /* ! 0 */
if (FRAMEP (xfocus))
{
focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
- if (FRAMEP (focus) && XFRAME (focus) == selected_frame)
+ if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
Fredirect_frame_focus (xfocus, frame);
}
}
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
- selected_frame = XFRAME (frame);
- if (! FRAME_MINIBUF_ONLY_P (selected_frame))
- last_nonminibuf_frame = selected_frame;
+ selected_frame = frame;
+ if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
+ last_nonminibuf_frame = XFRAME (selected_frame);
Fselect_window (XFRAME (frame)->selected_window);
"Return the frame that is now selected.")
()
{
- Lisp_Object tem;
- XSETFRAME (tem, selected_frame);
- return tem;
+ return selected_frame;
}
\f
DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 1, 1, 0,
Lisp_Object w;
if (NILP (frame))
- w = selected_frame->root_window;
+ w = SELECTED_FRAME ()->root_window;
else
{
CHECK_LIVE_FRAME (frame, 0);
(frame)
Lisp_Object frame;
{
+ Lisp_Object window;
+
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ window = SELECTED_FRAME ()->root_window;
else
- CHECK_LIVE_FRAME (frame, 0);
-
- return XFRAME (frame)->root_window;
+ {
+ CHECK_LIVE_FRAME (frame, 0);
+ window = XFRAME (frame)->root_window;
+ }
+
+ return window;
}
DEFUN ("frame-selected-window", Fframe_selected_window,
(frame)
Lisp_Object frame;
{
+ Lisp_Object window;
+
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ window = SELECTED_FRAME ()->selected_window;
else
- CHECK_LIVE_FRAME (frame, 0);
+ {
+ CHECK_LIVE_FRAME (frame, 0);
+ window = XFRAME (frame)->selected_window;
+ }
- return XFRAME (frame)->selected_window;
+ return window;
}
DEFUN ("set-frame-selected-window", Fset_frame_selected_window,
Lisp_Object frame, window;
{
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
- else
- CHECK_LIVE_FRAME (frame, 0);
-
+ frame = selected_frame;
+
+ CHECK_LIVE_FRAME (frame, 0);
CHECK_LIVE_WINDOW (window, 1);
if (! EQ (frame, WINDOW_FRAME (XWINDOW (window))))
error ("In `set-frame-selected-window', WINDOW is not on FRAME");
- if (XFRAME (frame) == selected_frame)
+ if (EQ (frame, selected_frame))
return Fselect_window (window);
return XFRAME (frame)->selected_window = window;
CHECK_LIVE_FRAME (frame, 0);
while (1)
- for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
+ for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object f;
- f = XCONS (tail)->car;
+ f = XCAR (tail);
if (passed
&& FRAME_KBOARD (XFRAME (f)) == FRAME_KBOARD (XFRAME (frame)))
abort ();
prev = Qnil;
- for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
+ for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object f;
- f = XCONS (tail)->car;
+ f = XCAR (tail);
if (!FRAMEP (f))
abort ();
(frame, miniframe)
Lisp_Object frame, miniframe;
{
- Lisp_Object tail;
-
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
- else
- CHECK_LIVE_FRAME (frame, 0);
-
+ frame = selected_frame;
+
+ CHECK_LIVE_FRAME (frame, 0);
return next_frame (frame, miniframe);
}
(frame, miniframe)
Lisp_Object frame, miniframe;
{
- Lisp_Object tail;
-
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
- else
- CHECK_LIVE_FRAME (frame, 0);
-
+ frame = selected_frame;
+ CHECK_LIVE_FRAME (frame, 0);
return prev_frame (frame, miniframe);
}
\f
{
/* We know the selected frame is visible,
so if F is some other frame, it can't be the sole visible one. */
- if (f == selected_frame)
+ if (f == SELECTED_FRAME ())
{
Lisp_Object frames;
int count = 0;
for (frames = Vframe_list;
CONSP (frames);
- frames = XCONS (frames)->cdr)
+ frames = XCDR (frames))
{
Lisp_Object this;
- this = XCONS (frames)->car;
+ this = XCAR (frames);
/* Verify that the frame's window still exists
and we can still talk to it. And note any recent change
in visibility. */
Lisp_Object frame, force;
{
struct frame *f;
+ struct frame *sf = SELECTED_FRAME ();
int minibuffer_selected;
if (EQ (frame, Qnil))
{
- f = selected_frame;
+ f = sf;
XSETFRAME (frame, f);
}
else
#if 0
/* This is a nice idea, but x_connection_closed needs to be able
to delete the last frame, if it is gone. */
- if (NILP (XCONS (Vframe_list)->cdr))
+ if (NILP (XCDR (Vframe_list)))
error ("Attempt to delete the only frame");
#endif
for (frames = Vframe_list;
CONSP (frames);
- frames = XCONS (frames)->cdr)
+ frames = XCDR (frames))
{
Lisp_Object this;
- this = XCONS (frames)->car;
+ this = XCAR (frames);
if (! EQ (this, frame)
&& EQ (frame,
minibuffer_selected = EQ (minibuf_window, selected_window);
/* Don't let the frame remain selected. */
- if (f == selected_frame)
+ if (f == sf)
{
Lisp_Object tail, frame1;
}
do_switch_frame (frame1, Qnil, 0);
+ sf = SELECTED_FRAME ();
}
/* Don't allow minibuf_window to remain on a deleted frame. */
if (EQ (f->minibuffer_window, minibuf_window))
{
- Fset_window_buffer (selected_frame->minibuffer_window,
+ Fset_window_buffer (sf->minibuffer_window,
XWINDOW (minibuf_window)->buffer);
- minibuf_window = selected_frame->minibuffer_window;
+ minibuf_window = sf->minibuffer_window;
/* If the dying minibuffer window was selected,
select the new one. */
Vframe_list = Fdelq (frame, Vframe_list);
FRAME_SET_VISIBLE (f, 0);
- if (echo_area_glyphs == FRAME_MESSAGE_BUF (f))
- {
- echo_area_glyphs = 0;
- previous_echo_glyphs = 0;
- }
-
if (f->namebuf)
xfree (f->namebuf);
if (FRAME_INSERT_COST (f))
x_destroy_window (f);
#endif
+/* Done by x_destroy_window above already */
+#if 0
+#ifdef macintosh
+ if (FRAME_MAC_P (f))
+ DisposeMacWindow (f->output_data.mac);
+#endif
+#endif
+
f->output_data.nothing = 0;
/* If we've deleted the last_nonminibuf_frame, then try to find
for (frames = Vframe_list;
CONSP (frames);
- frames = XCONS (frames)->cdr)
+ frames = XCDR (frames))
{
- f = XFRAME (XCONS (frames)->car);
+ f = XFRAME (XCAR (frames));
if (!FRAME_MINIBUF_ONLY_P (f))
{
last_nonminibuf_frame = f;
for (frames = Vframe_list;
CONSP (frames);
- frames = XCONS (frames)->cdr)
+ frames = XCDR (frames))
{
Lisp_Object this;
struct frame *f1;
- this = XCONS (frames)->car;
+ this = XCAR (frames);
if (!FRAMEP (this))
abort ();
f1 = XFRAME (this);
int col, row;
unsigned long long_dummy;
- f = selected_frame;
+ f = SELECTED_FRAME ();
x = y = Qnil;
#ifdef HAVE_MOUSE
Lisp_Object lispy_dummy;
enum scroll_bar_part party_dummy;
Lisp_Object x, y;
- int col, row;
unsigned long long_dummy;
- f = selected_frame;
+ f = SELECTED_FRAME ();
x = y = Qnil;
#ifdef HAVE_MOUSE
Lisp_Object frame;
{
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ frame = selected_frame;
CHECK_LIVE_FRAME (frame, 0);
Lisp_Object frame, force;
{
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ frame = selected_frame;
CHECK_LIVE_FRAME (frame, 0);
#if 0 /* This isn't logically necessary, and it can do GC. */
/* Don't let the frame remain selected. */
- if (XFRAME (frame) == selected_frame)
+ if (EQ (frame, selected_frame))
do_switch_frame (next_frame (frame, Qt), Qnil, 0)
#endif
/* Don't allow minibuf_window to remain on a deleted frame. */
if (EQ (XFRAME (frame)->minibuffer_window, minibuf_window))
{
- Fset_window_buffer (selected_frame->minibuffer_window,
+ struct frame *sf = XFRAME (selected_frame);
+ Fset_window_buffer (sf->minibuffer_window,
XWINDOW (minibuf_window)->buffer);
- minibuf_window = selected_frame->minibuffer_window;
+ minibuf_window = sf->minibuffer_window;
}
/* I think this should be done with a hook. */
Lisp_Object frame;
{
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ frame = selected_frame;
CHECK_LIVE_FRAME (frame, 0);
#if 0 /* This isn't logically necessary, and it can do GC. */
/* Don't let the frame remain selected. */
- if (XFRAME (frame) == selected_frame)
+ if (EQ (frame, selected_frame))
Fhandle_switch_frame (next_frame (frame, Qt), Qnil);
#endif
/* Don't allow minibuf_window to remain on a deleted frame. */
if (EQ (XFRAME (frame)->minibuffer_window, minibuf_window))
{
- Fset_window_buffer (selected_frame->minibuffer_window,
+ struct frame *sf = XFRAME (selected_frame);
+ Fset_window_buffer (sf->minibuffer_window,
XWINDOW (minibuf_window)->buffer);
- minibuf_window = selected_frame->minibuffer_window;
+ minibuf_window = sf->minibuffer_window;
}
/* I think this should be done with a hook. */
Lisp_Object value;
value = Qnil;
- for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
+ for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
{
- frame = XCONS (tail)->car;
+ frame = XCAR (tail);
if (!FRAMEP (frame))
continue;
f = XFRAME (frame);
Lisp_Object frame;
{
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ frame = selected_frame;
CHECK_LIVE_FRAME (frame, 0);
Lisp_Object frame;
{
if (NILP (frame))
- XSETFRAME (frame, selected_frame);
+ frame = selected_frame;
CHECK_LIVE_FRAME (frame, 0);
if (len > 1 && str[0] == 'F')
{
char *end_ptr;
- long num = strtol (str + 1, &end_ptr, 10);
+
+ strtol (str + 1, &end_ptr, 10);
if (end_ptr == str + len)
return 1;
if (! MINI_WINDOW_P (XWINDOW (val)))
error ("Surrogate minibuffer windows must be minibuffer windows.");
- if (FRAME_HAS_MINIBUF_P (f) || FRAME_MINIBUF_ONLY_P (f)
+ if ((FRAME_HAS_MINIBUF_P (f) || FRAME_MINIBUF_ONLY_P (f))
&& !EQ (val, f->minibuffer_window))
error ("Can't change the surrogate minibuffer of a frame with its own minibuffer");
int height, width;
if (EQ (frame, Qnil))
- f = selected_frame;
- else
- {
- CHECK_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+
+ CHECK_FRAME (frame, 0);
+ f = XFRAME (frame);
if (!FRAME_LIVE_P (f))
return Qnil;
: FRAME_MINIBUF_WINDOW (f)));
store_in_alist (&alist, Qunsplittable, (FRAME_NO_SPLIT_P (f) ? Qt : Qnil));
store_in_alist (&alist, Qbuffer_list,
- frame_buffer_list (Fselected_frame ()));
+ frame_buffer_list (selected_frame));
/* I think this should be done with a hook. */
#ifdef HAVE_WINDOW_SYSTEM
Lisp_Object frame, alist;
{
FRAME_PTR f;
- register Lisp_Object tail, elt, prop, val;
+ register Lisp_Object tail, prop, val;
if (EQ (frame, Qnil))
- f = selected_frame;
- else
- {
- CHECK_LIVE_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_LIVE_FRAME (frame, 0);
+ f = XFRAME (frame);
/* I think this should be done with a hook. */
#ifdef HAVE_WINDOW_SYSTEM
IT_set_frame_parameters (f, alist);
else
#endif
+#ifdef macintosh
+ if (FRAME_MAC_P (f))
+ mac_set_frame_parameters (f, alist);
+ else
+#endif
+
{
int length = XINT (Flength (alist));
int i;
i = 0;
for (tail = alist; CONSP (tail); tail = Fcdr (tail))
{
- Lisp_Object elt, prop, val;
+ Lisp_Object elt;
elt = Fcar (tail);
parms[i] = Fcar (elt);
struct frame *f;
if (NILP (frame))
- f = selected_frame;
- else
- {
- CHECK_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_FRAME (frame, 0);
+ f = XFRAME (frame);
#ifdef HAVE_WINDOW_SYSTEM
if (FRAME_WINDOW_P (f))
struct frame *f;
if (NILP (frame))
- f = selected_frame;
- else
- {
- CHECK_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_FRAME (frame, 0);
+ f = XFRAME (frame);
#ifdef HAVE_WINDOW_SYSTEM
if (FRAME_WINDOW_P (f))
struct frame *f;
if (NILP (frame))
- f = selected_frame;
- else
- {
- CHECK_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_FRAME (frame, 0);
+ f = XFRAME (frame);
#ifdef HAVE_WINDOW_SYSTEM
if (FRAME_WINDOW_P (f))
struct frame *f;
if (NILP (frame))
- f = selected_frame;
- else
- {
- CHECK_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_FRAME (frame, 0);
+ f = XFRAME (frame);
#ifdef HAVE_WINDOW_SYSTEM
if (FRAME_WINDOW_P (f))
CHECK_NUMBER (lines, 0);
if (NILP (frame))
- f = selected_frame;
- else
- {
- CHECK_LIVE_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_LIVE_FRAME (frame, 0);
+ f = XFRAME (frame);
/* I think this should be done with a hook. */
#ifdef HAVE_WINDOW_SYSTEM
{
if (XINT (lines) != f->height)
x_set_window_size (f, 1, f->width, XINT (lines));
- do_pending_window_change ();
+ do_pending_window_change (0);
}
else
#endif
- change_frame_size (f, XINT (lines), 0, !NILP (pretend), 0);
+ change_frame_size (f, XINT (lines), 0, !NILP (pretend), 0, 0);
return Qnil;
}
register struct frame *f;
CHECK_NUMBER (cols, 0);
if (NILP (frame))
- f = selected_frame;
- else
- {
- CHECK_LIVE_FRAME (frame, 0);
- f = XFRAME (frame);
- }
+ frame = selected_frame;
+ CHECK_LIVE_FRAME (frame, 0);
+ f = XFRAME (frame);
/* I think this should be done with a hook. */
#ifdef HAVE_WINDOW_SYSTEM
{
if (XINT (cols) != f->width)
x_set_window_size (f, 1, XINT (cols), f->height);
- do_pending_window_change ();
+ do_pending_window_change (0);
}
else
#endif
- change_frame_size (f, 0, XINT (cols), !NILP (pretend), 0);
+ change_frame_size (f, 0, XINT (cols), !NILP (pretend), 0, 0);
return Qnil;
}
Lisp_Object frame, cols, rows;
{
register struct frame *f;
- int mask;
CHECK_LIVE_FRAME (frame, 0);
CHECK_NUMBER (cols, 2);
if (XINT (rows) != f->height || XINT (cols) != f->width
|| FRAME_NEW_HEIGHT (f) || FRAME_NEW_WIDTH (f))
x_set_window_size (f, 1, XINT (cols), XINT (rows));
- do_pending_window_change ();
+ do_pending_window_change (0);
}
else
#endif
- change_frame_size (f, XINT (rows), XINT (cols), 0, 0);
+ change_frame_size (f, XINT (rows), XINT (cols), 0, 0, 0);
return Qnil;
}
Lisp_Object frame, xoffset, yoffset;
{
register struct frame *f;
- int mask;
CHECK_LIVE_FRAME (frame, 0);
CHECK_NUMBER (xoffset, 1);