mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-09-25 08:14:18 +00:00
cf9f0b7741
Sat Oct 13 07:09:30 2001 Tim Janik <timj@gtk.org>
* gtk/gtkbindings.c (gtk_binding_set_add_path): to compare pattern
specs, use g_pattern_spec_equal() instead of direct field accesses.
upon compressing two equal paths of the same type, the resulting
priority has to be the maximum.
* gtk/gtkenums.h (enum): take GTK_PATH_PRIO_MASK out of the
GtkPathPriorityType enum and make it a macro.
575 lines
19 KiB
Plaintext
575 lines
19 KiB
Plaintext
<!-- ##### SECTION ./tmpl/from-drawables.sgml:Long_Description ##### -->
|
|
<para>
|
|
The functions in this section allow you to take the image data
|
|
from a GDK drawable and dump it into a #GdkPixbuf. This can be
|
|
used for screenshots and other special effects. Note that these
|
|
operations can be expensive, since the image data has to be
|
|
transferred from the X server to the client program and converted.
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/from-drawables.sgml:See_Also ##### -->
|
|
<para>
|
|
gdk_image_get().
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/from-drawables.sgml:Short_Description ##### -->
|
|
Getting parts of a drawable's image data into a pixbuf.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/from-drawables.sgml:Title ##### -->
|
|
Drawables to Pixbufs
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/gnome-canvas-pixbuf.sgml:Long_Description ##### -->
|
|
<para>
|
|
This canvas item displays #GdkPixbuf images. It handles full
|
|
affine transformations in both GDK and antialiased modes, and also
|
|
supports the <ulink url="http://www.w3.org">W3C</ulink>'s <ulink
|
|
url="http://www.w3.org/Graphics/SVG/">SVG</ulink>-like scaling and
|
|
translation semantics for absolute pixel values.
|
|
</para>
|
|
|
|
<para>
|
|
#GdkPixbuf structures may be shared among different pixbuf canvas
|
|
items; the pixbuf item uses #GdkPixbuf's reference counting
|
|
functions for this.
|
|
</para>
|
|
|
|
<refsect2>
|
|
<title>Custom Scaling and Translation</title>
|
|
|
|
<para>
|
|
In addition to the normal affine transformations supported by
|
|
canvas items, the #GnomeCanvasPixbuf item supports independent
|
|
object arguments for scaling and translation. This is useful
|
|
for explicitly setting a size to which the pixbuf's image will
|
|
be scaled, and for specifying translation offsets that take
|
|
place in the item's local coordinate system.
|
|
</para>
|
|
|
|
<para>
|
|
By default, the pixbuf canvas item will attain the size in units
|
|
of the #GdkPixbuf it contains. If a #GnomeCanvasPixbuf is
|
|
configured to use a #GdkPixbuf that has a size of 300 by 200
|
|
pixels, then the pixbuf item will automatically obtain a size of
|
|
300 by 200 units in the item's local coordinate system. If the
|
|
item is transformed with a scaling transformation of (0.5, 2.0),
|
|
then the final image size will be of 150 by 400 pixels.
|
|
</para>
|
|
|
|
<para>
|
|
To set custom width and height values, you must set the <link
|
|
linkend="GnomeCanvasPixbuf--width-set">width_set</link> or <link
|
|
linkend="GnomeCanvasPixbuf--height-set">height_set</link>
|
|
arguments to %TRUE, and then set the <link
|
|
linkend="GnomeCanvasPixbuf--width">width</link> or <link
|
|
linkend="GnomeCanvasPixbuf--height">height</link> arguments to
|
|
the desired values. The former two arguments control whether
|
|
the latter two are used when computing the final image's size;
|
|
they are both %FALSE by default so that the pixbuf item will
|
|
attain a size in units equal to the size in pixels of the
|
|
#GdkPixbuf that the item contains.
|
|
</para>
|
|
|
|
<para>
|
|
The custom translation offsets are controlled by the <link
|
|
linkend="GnomeCanvasPixbuf--x">x</link> and <link
|
|
linkend="GnomeCanvasPixbuf--y">y</link> arguments. The logical
|
|
upper-left vertex of the image will be translated by the
|
|
specified distance, aligned with the item's local coordinate
|
|
system.
|
|
</para>
|
|
</refsect2>
|
|
|
|
<refsect2>
|
|
<title>Absolute Pixel Scaling and Translation</title>
|
|
|
|
<para>
|
|
The <ulink url="http://www.w3.org/Graphics/SVG/">Scalable Vector
|
|
Graphics</ulink> specification (SVG) of the <ulink
|
|
url="http://www.w3.org">World Wide Web Consortium</ulink> also
|
|
allows images to be translated and scaled by absolute pixel
|
|
values that are independent of an item's normal affine
|
|
transformation.
|
|
</para>
|
|
|
|
<para>
|
|
Normally, the pixbuf item's translation and scaling arguments
|
|
are interpreted in units, so they will be modified by the item's
|
|
affine transformation. The <link
|
|
linkend="GnomeCanvasPixbuf--width-in-pixels">width_in_pixels</link>,
|
|
<link
|
|
linkend="GnomeCanvasPixbuf--height-in-pixels">height_in_pixels</link>,
|
|
<link
|
|
linkend="GnomeCanvasPixbuf--x-in-pixels">x_in_pixels</link>, and
|
|
<link
|
|
linkend="GnomeCanvasPixbuf--y-in-pixels">y_in_pixels</link>
|
|
object arguments can be used to modify this behavior. If one of
|
|
these arguments is %TRUE, then the corresponding scaling or
|
|
translation value will not be affected lengthwise by the pixbuf
|
|
item's affine transformation.
|
|
</para>
|
|
|
|
<para>
|
|
For example, consider a pixbuf item whose size is (300, 200).
|
|
If the item is modified with a scaling transformation of (0.5,
|
|
2.0) but the <link
|
|
linkend="GnomeCanvasPixbuf--width-in-pixels">width_in_pixels</link>
|
|
is set to %TRUE, then the item will appear to be (300, 400)
|
|
pixels in size. This means that in this case the item's affine
|
|
transformation only applies to the height value, while the width
|
|
value is kept in absolute pixels.
|
|
</para>
|
|
|
|
<para>
|
|
Likewise, consider a pixbuf item whose (<link
|
|
linkend="GnomeCanvasPixbuf--x">x</link>, <link
|
|
linkend="GnomeCanvasPixbuf--y">y</link>) arguments are set to
|
|
(30, 40). If the item is then modified by the same scaling
|
|
transformation of (0.5, 2.0) but the <link
|
|
linkend="GnomeCanvasPixbuf--y-in-pixels">y_in_pixels</link>
|
|
argument is set to %TRUE, then the image's upper-left corner
|
|
will appear to be at position (15, 40). In this case, the
|
|
affine transformation is applied only to the x offset, while the
|
|
y offset is kept in absolute pixels.
|
|
</para>
|
|
|
|
<para>
|
|
In short, these arguments control whether a particular dimension
|
|
of a pixbuf item is scaled or not in the normal way by the
|
|
item's affine transformation.
|
|
</para>
|
|
</refsect2>
|
|
|
|
<refsect2>
|
|
<title>Resource Management</title>
|
|
|
|
<para>
|
|
When you set the #GdkPixbuf structure that a #GnomeCanvasPixbuf
|
|
item will use by setting the <link
|
|
linkend="GnomeCanvasPixbuf--pixbuf">pixbuf</link> argument, a
|
|
reference count will be added to that #GdkPixbuf structure.
|
|
When the pixbuf item no longer needs the #GdkPixbuf structure,
|
|
such as when the item is destroyed or when a new pixbuf
|
|
structure is passed to it, then the old #GdkPixbuf structure
|
|
will be automatically unreferenced.
|
|
</para>
|
|
|
|
<para>
|
|
This means that if an application just needs to load a pixbuf
|
|
image and set it into a pixbuf canvas item, it can do the
|
|
following to ‘forget’ about the pixbuf structure:
|
|
|
|
<programlisting>
|
|
GdkPixbuf *pixbuf;
|
|
GnomeCanvasItem *item;
|
|
|
|
pixbuf = gdk_pixbuf_new_from_file ("foo.png");
|
|
g_assert (pixbuf != NULL);
|
|
|
|
item = gnome_canvas_item_new (gnome_canvas_root (my_canvas),
|
|
gnome_canvas_pixbuf_get_type (),
|
|
"pixbuf", pixbuf,
|
|
NULL);
|
|
gdk_pixbuf_unref (pixbuf);
|
|
</programlisting>
|
|
</para>
|
|
|
|
<para>
|
|
After this happens, the reference count of the pixbuf structure
|
|
will be 1: the gdk_pixbuf_new_from_file() function creates it
|
|
with a reference count of 1, then setting the <link
|
|
linkend="GnomeCanvasPixbuf--pixbuf">pixbuf</link> argument of
|
|
the #GnomeCanvasPixbuf item increases it to 2, and then it is
|
|
decremented to 1 by the call to gdk_pixbuf_unref(). When the
|
|
canvas item is destroyed, it will automatically unreference the
|
|
pixbuf structure again, causing its reference count to drop to
|
|
zero and thus be freed.
|
|
</para>
|
|
</refsect2>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/gnome-canvas-pixbuf.sgml:See_Also ##### -->
|
|
<para>
|
|
#GnomeCanvas, #GdkPixbuf
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/gnome-canvas-pixbuf.sgml:Short_Description ##### -->
|
|
Canvas item to display #GdkPixbuf images.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/gnome-canvas-pixbuf.sgml:Title ##### -->
|
|
GnomeCanvasPixbuf
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/rendering.sgml:Long_Description ##### -->
|
|
<para>
|
|
The &gdk-pixbuf; library provides several convenience functions to
|
|
render pixbufs to GDK drawables. It uses the GdkRGB to render the
|
|
image data.
|
|
</para>
|
|
|
|
<para>
|
|
At this point there is not a standard alpha channel extension for
|
|
the X Window System, so it is not possible to use full opacity
|
|
information when painting images to arbitrary drawables. The
|
|
&gdk-pixbuf; convenience functions will threshold the opacity
|
|
information to create a bi-level clipping mask (black and white),
|
|
and use that to draw the image onto a drawable.
|
|
</para>
|
|
|
|
<important>
|
|
<para>
|
|
Since these functions use GdkRGB for rendering, you must
|
|
initialize GdkRGB before using any of them. You can do this by
|
|
calling gdk_rgb_init() near the beginning of your program.
|
|
</para>
|
|
</important>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/rendering.sgml:See_Also ##### -->
|
|
<para>
|
|
GdkRGB
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/rendering.sgml:Short_Description ##### -->
|
|
Rendering a pixbuf to a GDK drawable.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/rendering.sgml:Title ##### -->
|
|
Rendering
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-from-drawables.sgml:Long_Description ##### -->
|
|
<para>
|
|
The functions in this section allow you to take the image data
|
|
from an X drawable and dump it into a #GdkPixbuf. This can be
|
|
used for screenshots and other special effects. Note that these
|
|
operations can be expensive, since the image data has to be
|
|
transferred from the X server to the client program and converted.
|
|
</para>
|
|
|
|
<para>
|
|
These functions are analogous to those for the Gdk version of
|
|
&gdk-pixbuf;.
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-from-drawables.sgml:See_Also ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-from-drawables.sgml:Short_Description ##### -->
|
|
Getting parts of an X drawable's image data into a pixbuf.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-from-drawables.sgml:Title ##### -->
|
|
X Drawables to Pixbufs
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-init.sgml:Long_Description ##### -->
|
|
<para>
|
|
In addition to the normal Gdk-specific functions, the &gdk-pixbuf;
|
|
package provides a small library that lets Xlib-only applications
|
|
use #GdkPixbuf structures and render them to X drawables. The
|
|
functions in this section are used to initialize the &gdk-pixbuf;
|
|
Xlib library. This library must be initialized near the beginning
|
|
or the program or before calling any of the other &gdk-pixbuf;
|
|
Xlib functions; it cannot be initialized automatically since
|
|
Xlib-only applications do not call gdk_rgb_init() like GNOME
|
|
applications do.
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-init.sgml:See_Also ##### -->
|
|
<para>
|
|
XlibRGB
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-init.sgml:Short_Description ##### -->
|
|
Initializing the &gdk-pixbuf; Xlib library.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-init.sgml:Title ##### -->
|
|
&gdk-pixbuf; Xlib initialization
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rendering.sgml:Long_Description ##### -->
|
|
<para>
|
|
The &gdk-pixbuf; Xlib library provides several convenience
|
|
functions to render pixbufs to X drawables. It uses XlibRGB to
|
|
render the image data.
|
|
</para>
|
|
|
|
<para>
|
|
These functions are analogous to those for the Gdk version of
|
|
&gdk-pixbuf;.
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rendering.sgml:See_Also ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rendering.sgml:Short_Description ##### -->
|
|
Rendering a pixbuf to an X drawable.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rendering.sgml:Title ##### -->
|
|
Xlib Rendering
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rgb.sgml:Long_Description ##### -->
|
|
<para>
|
|
The XlibRGB set of functions is a port of the GdkRGB library to
|
|
use plain Xlib and X drawables. You can use these functions to
|
|
render RGB buffers into drawables very quickly with high-quality
|
|
dithering.
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rgb.sgml:See_Also ##### -->
|
|
<para>
|
|
GdkRGB
|
|
</para>
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rgb.sgml:Short_Description ##### -->
|
|
Functions for rendering RGB buffers to X drawables.
|
|
|
|
|
|
<!-- ##### SECTION ./tmpl/xlib-rgb.sgml:Title ##### -->
|
|
XlibRGB
|
|
|
|
|
|
<!-- ##### MACRO GDK_PIXBUF_LOADER ##### -->
|
|
<para>
|
|
Casts a #GtkObject to a #GdkPixbufLoader.
|
|
</para>
|
|
|
|
@obj: A GTK+ object.
|
|
|
|
<!-- ##### MACRO GNOME_CANVAS_PIXBUF ##### -->
|
|
<para>
|
|
Casts a #GtkOjbect to a #GnomeCanvasPixbuf.
|
|
</para>
|
|
|
|
@obj: A GTK+ object.
|
|
|
|
<!-- ##### ENUM GdkPixbufFrameAction ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@GDK_PIXBUF_FRAME_RETAIN:
|
|
@GDK_PIXBUF_FRAME_DISPOSE:
|
|
@GDK_PIXBUF_FRAME_REVERT:
|
|
|
|
<!-- ##### USER_FUNCTION GdkPixbufLastUnref ##### -->
|
|
<para>
|
|
A function of this type can be used to override the default
|
|
operation when a pixbuf loses its last reference, i.e. when
|
|
gdk_pixbuf_unref() is called on a #GdkPixbuf structure that has a
|
|
reference count of 1. This function should determine whether to
|
|
finalize the pixbuf by calling gdk_pixbuf_finalize(), or whether
|
|
to just resume normal execution. The last unref handler for a
|
|
#GdkPixbuf can be set using the
|
|
gdk_pixbuf_set_last_unref_handler() function. By default, pixbufs
|
|
will be finalized automatically if no last unref handler has been
|
|
defined.
|
|
</para>
|
|
|
|
@pixbuf: The pixbuf that is losing its last reference.
|
|
@data: User closure data.
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:height ##### -->
|
|
<para>
|
|
Indicates the height the pixbuf will be scaled to. This argument
|
|
will only be used if the <link
|
|
linkend="GnomeCanvasPixbuf--height-set">height_set</link> argument
|
|
is %TRUE. Works in the same way as the <link
|
|
linkend="GnomeCanvasPixbuf--width">width</link> argument.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:height-in-pixels ##### -->
|
|
<para>
|
|
Works in the same way as the <link
|
|
linkend="GnomeCanvasPixbuf--width-in-pixels">width_in_pixels</link>
|
|
argument. The default is %FALSE.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:height-pixels ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:height-set ##### -->
|
|
<para>
|
|
Determines whether the <link
|
|
linkend="GnomeCanvasPixbuf--height">height</link> argument is
|
|
taken into account when scaling the pixbuf item. Works in the
|
|
same way as the <link
|
|
linkend="GnomeCanvasPixbuf--width-set">width_set</link> argument.
|
|
The default is %FALSE.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:pixbuf ##### -->
|
|
<para>
|
|
Contains a pointer to a #GdkPixbuf structure that will be used by
|
|
the pixbuf canvas item as an image source. When a pixbuf is set
|
|
its reference count is incremented; if the pixbuf item kept a
|
|
pointer to another #GdkPixbuf structure, the reference count of
|
|
this structure will be decremented. Also, the GdkPixbuf's
|
|
reference count will automatically be decremented when the
|
|
#GnomeCanvasPixbuf item is destroyed. When a pixbuf is queried, a
|
|
reference count will not be added to the return value; you must do
|
|
this yourself if you intend to keep the pixbuf structure around.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:width ##### -->
|
|
<para>
|
|
Indicates the width the pixbuf will be scaled to. This argument
|
|
will only be used if the <link
|
|
linkend="GnomeCanvasPixbuf--width-set">width_set</link> argument
|
|
is %TRUE. If the <link
|
|
linkend="GnomeCanvasPixbuf--width-in-pixels">width_in_pixels</link>
|
|
argument is %FALSE, the width will be taken to be in canvas units,
|
|
and thus will be scaled along with the canvas item's affine
|
|
transformation. If width_in_pixels is %TRUE, the width will be
|
|
taken to be in pixels, and will visually remain a constant size
|
|
even if the item's affine transformation changes.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:width-in-pixels ##### -->
|
|
<para>
|
|
If this argument is %TRUE, then the width of the pixbuf will be
|
|
considered to be in pixels, that is, it will not be visually
|
|
scaled even if the item's affine transformation changes. If this
|
|
is %FALSE, then the width of the pixbuf will be considered to be
|
|
in canvas units, and so will be scaled normally by affine
|
|
transformations. The default is %FALSE.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:width-pixels ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:width-set ##### -->
|
|
<para>
|
|
Determines whether the <link
|
|
linkend="GnomeCanvasPixbuf--width">width</link> argument is taken
|
|
into account when scaling the pixbuf item. If this argument is
|
|
%FALSE, then the width value of the pixbuf will be used instead.
|
|
This argument is %FALSE by default.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:x ##### -->
|
|
<para>
|
|
Indicates the horizontal translation offset of the pixbuf item's
|
|
image. This offset may not actually appear horizontal, since it
|
|
will be affected by the item's affine transformation. The default
|
|
is 0.0.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:x-in-pixels ##### -->
|
|
<para>
|
|
If this argument is %TRUE, the pixbuf's translation with respect
|
|
to its logical origin in item-relative coordinates will be in
|
|
pixels, that is, the visible offset will not change even if the
|
|
item's affine transformation changes. If it is %FALSE, the
|
|
pixbuf's translation will be taken to be in canvas units, and thus
|
|
will change along with the item's affine transformation. The
|
|
default is %FALSE.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:x-pixels ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:x-set ##### -->
|
|
<para>
|
|
Determines whether the <link
|
|
linkend="GnomeCanvasPixbuf--x">x</link> argument is used to
|
|
translate the pixbuf from its logical origin in item-relative
|
|
coordinates.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:y ##### -->
|
|
<para>
|
|
Indicates the vertical translation offset of the pixbuf item's
|
|
image. Works in the same way as the <link
|
|
linkend="GnomeCanvasPixbuf--x">x</link> argument. The default is
|
|
0.0.
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:y-in-pixels ##### -->
|
|
<para>
|
|
Works in the same way as the <link
|
|
linkend="GnomeCanvasPixbuf--x-in-pixels">x_in_pixels</link>
|
|
argument, but controls whether the <link
|
|
linkend="GnomeCanvasPixbuf--y">y</link> translation offset is
|
|
scaled or not. The default is %FALSE.
|
|
</para>
|
|
|
|
<!--
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-parent-document: ("../gdk-pixbuf.sgml" "book" "refsect2" "")
|
|
End:
|
|
-->
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:y-pixels ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
|
|
<!-- ##### ARG GnomeCanvasPixbuf:y-set ##### -->
|
|
<para>
|
|
Determines whether the <link
|
|
linkend="GnomeCanvasPixbuf--y">y</link> argument is used to
|
|
translate the pixbuf from its logical origin in item-relative
|
|
coordinates. Works in the same way as the <link
|
|
linkend="GnomeCanvasPixbuf--x-set">x_set</link> argument. The
|
|
default is %FALSE.
|
|
</para>
|
|
|
|
|
|
<!-- ##### FUNCTION gdk_pixbuf_new_from_stream ##### -->
|
|
<para>
|
|
|
|
</para>
|
|
|
|
@stream_length:
|
|
@stream:
|
|
@copy_pixels:
|
|
@error:
|
|
@Returns:
|
|
|