AtkImage

AtkImage — The ATK Interface implemented by components which expose image or pixmap content on-screen.

Synopsis

                    AtkImage;
void                atk_image_get_image_position        (AtkImage *image,
                                                         gint *x,
                                                         gint *y,
                                                         AtkCoordType coord_type);
const gchar *       atk_image_get_image_description     (AtkImage *image);
gboolean            atk_image_set_image_description     (AtkImage *image,
                                                         const gchar *description);
void                atk_image_get_image_size            (AtkImage *image,
                                                         gint *width,
                                                         gint *height);
const gchar *       atk_image_get_image_locale          (AtkImage *image);

Object Hierarchy

  GInterface
   +----AtkImage

Known Implementations

AtkImage is implemented by AtkNoOpObject.

Description

AtkImage should be implemented by AtkObject subtypes on behalf of components which display image/pixmap information onscreen, and which provide information (other than just widget borders, etc.) via that image content. For instance, icons, buttons with icons, toolbar elements, and image viewing panes typically should implement AtkImage.

AtkImage primarily provides two types of information: coordinate information (useful for screen review mode of screenreaders, and for use by onscreen magnifiers), and descriptive information. The descriptive information is provided for alternative, text-only presentation of the most significant information present in the image.

Details

AtkImage

typedef struct _AtkImage AtkImage;

The AtkImage structure does not contain any fields.

atk_image_get_image_position ()

void                atk_image_get_image_position        (AtkImage *image,
                                                         gint *x,
                                                         gint *y,
                                                         AtkCoordType coord_type);

Gets the position of the image in the form of a point specifying the images top-left corner.

image :

 a GObject instance that implements AtkImageIface

x :

 address of gint to put x coordinate position; otherwise, -1 if value cannot be obtained.

y :

 address of gint to put y coordinate position; otherwise, -1 if value cannot be obtained.

coord_type :

 specifies whether the coordinates are relative to the screen or to the components top level window

atk_image_get_image_description ()

const gchar *       atk_image_get_image_description     (AtkImage *image);

Get a textual description of this image.

image :

 a GObject instance that implements AtkImageIface

Returns :

 a string representing the image description

atk_image_set_image_description ()

gboolean            atk_image_set_image_description     (AtkImage *image,
                                                         const gchar *description);

Sets the textual description for this image.

image :

 a GObject instance that implements AtkImageIface

description :

 a string description to set for image

Returns :

 boolean TRUE, or FALSE if operation could not be completed.

atk_image_get_image_size ()

void                atk_image_get_image_size            (AtkImage *image,
                                                         gint *width,
                                                         gint *height);

Get the width and height in pixels for the specified image. The values of width and height are returned as -1 if the values cannot be obtained (for instance, if the object is not onscreen).

image :

 a GObject instance that implements AtkImageIface

width :

 filled with the image width, or -1 if the value cannot be obtained.

height :

 filled with the image height, or -1 if the value cannot be obtained.

atk_image_get_image_locale ()

const gchar *       atk_image_get_image_locale          (AtkImage *image);

Since ATK 1.12

image :

 An AtkImage

Returns :

 a string corresponding to the POSIX LC_MESSAGES locale used by the image description, or NULL if the image does not specify a locale.
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