xcb_get_window_attributes (3) - Linux Manuals

xcb_get_window_attributes: Gets window attributes

NAME

xcb_get_window_attributes - Gets window attributes

SYNOPSIS

#include <xcb/xproto.h>

Request function

xcb_get_window_attributes_cookie_t xcb_get_window_attributes(xcb_connection_t *conn, xcb_window_t window);

Reply datastructure

typedef struct xcb_get_window_attributes_reply_t {
    uint8_t        response_type;
    uint8_t        backing_store;
    uint16_t       sequence;
    uint32_t       length;
    xcb_visualid_t visual;
    uint16_t       _class;
    uint8_t        bit_gravity;
    uint8_t        win_gravity;
    uint32_t       backing_planes;
    uint32_t       backing_pixel;
    uint8_t        save_under;
    uint8_t        map_is_installed;
    uint8_t        map_state;
    uint8_t        override_redirect;
    xcb_colormap_t colormap;
    uint32_t       all_event_masks;
    uint32_t       your_event_mask;
    uint16_t       do_not_propagate_mask;
    uint8_t        pad0[2];
} xcb_get_window_attributes_reply_t;

Reply function

xcb_get_window_attributes_reply_t *xcb_get_window_attributes_reply(xcb_connection_t *conn, xcb_get_window_attributes_cookie_t cookie, xcb_generic_error_t **e);

REQUEST ARGUMENTS

conn
The XCB connection to X11.
window
The window to get the attributes from.

REPLY FIELDS

response_type
The type of this reply, in this case XCB_GET_WINDOW_ATTRIBUTES. This field is also present in the xcb_generic_reply_t and can be used to tell replies apart from each other.
sequence
The sequence number of the last request processed by the X11 server.
length
The length of the reply, in words (a word is 4 bytes).
backing_store
One of the following values:
XCB_BACKING_STORE_NOT_USEFUL
TODO: NOT YET DOCUMENTED.
XCB_BACKING_STORE_WHEN_MAPPED
TODO: NOT YET DOCUMENTED.
XCB_BACKING_STORE_ALWAYS
TODO: NOT YET DOCUMENTED.

visual
The associated visual structure of window.
_class
One of the following values:
XCB_WINDOW_CLASS_COPY_FROM_PARENT
TODO: NOT YET DOCUMENTED.
XCB_WINDOW_CLASS_INPUT_OUTPUT
TODO: NOT YET DOCUMENTED.
XCB_WINDOW_CLASS_INPUT_ONLY
TODO: NOT YET DOCUMENTED.

bit_gravity
One of the following values:
XCB_GRAVITY_BIT_FORGET
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_WIN_UNMAP
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_NORTH_WEST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_NORTH
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_NORTH_EAST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_WEST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_CENTER
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_EAST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_SOUTH_WEST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_SOUTH
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_SOUTH_EAST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_STATIC
TODO: NOT YET DOCUMENTED.

win_gravity
One of the following values:
XCB_GRAVITY_BIT_FORGET
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_WIN_UNMAP
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_NORTH_WEST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_NORTH
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_NORTH_EAST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_WEST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_CENTER
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_EAST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_SOUTH_WEST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_SOUTH
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_SOUTH_EAST
TODO: NOT YET DOCUMENTED.
XCB_GRAVITY_STATIC
TODO: NOT YET DOCUMENTED.

backing_planes
Planes to be preserved if possible.
backing_pixel
Value to be used when restoring planes.
save_under
Boolean, should bits under be saved?
map_is_installed
TODO: NOT YET DOCUMENTED.
map_state
One of the following values:
XCB_MAP_STATE_UNMAPPED
TODO: NOT YET DOCUMENTED.
XCB_MAP_STATE_UNVIEWABLE
TODO: NOT YET DOCUMENTED.
XCB_MAP_STATE_VIEWABLE
TODO: NOT YET DOCUMENTED.

override_redirect
Window managers should ignore this window if override_redirect is 1.
colormap
Color map to be associated with window.
all_event_masks
Set of events all people have interest in.
your_event_mask
My event mask.
do_not_propagate_mask
Set of events that should not propagate.

DESCRIPTION

Gets the current attributes for the specified window.

RETURN VALUE

Returns an xcb_get_window_attributes_cookie_t. Errors have to be handled when calling the reply function xcb_get_window_attributes_reply.

If you want to handle errors in the event loop instead, use xcb_get_window_attributes_unchecked. See xcb-requests(3) for details.

ERRORS

xcb_drawable_error_t
TODO: reasons?
xcb_window_error_t
The specified window does not exist.

AUTHOR

Generated from xproto.xml. Contact xcb [at] lists.freedesktop.org for corrections and improvements.

SEE ALSO

xcb-requests(3)

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