xcb_get_geometry(3) XCB Requests xcb_get_geometry(3)
NAME
xcb_get_geometry - Get current window geometry
SYNOPSIS
#include <xcb/xproto.h> Request function
xcb_get_geometry_cookie_t
xcb_get_geometry(xcb_connection_t *
conn,
xcb_drawable_t
drawable);
Reply datastructure
typedef struct xcb_get_geometry_reply_t {
uint8_t
response_type;
uint8_t
depth;
uint16_t
sequence;
uint32_t
length;
xcb_window_t
root;
int16_t
x;
int16_t
y;
uint16_t
width;
uint16_t
height;
uint16_t
border_width;
uint8_t
pad0[2];
}
xcb_get_geometry_reply_t;
Reply function
xcb_get_geometry_reply_t
*
xcb_get_geometry_reply(xcb_connection_t *
conn,
xcb_get_geometry_cookie_t
cookie, xcb_generic_error_t **
e);
REQUEST ARGUMENTS
conn The XCB connection to X11.
drawable The drawable (
Window or
Pixmap) of which the geometry will
be received.
REPLY FIELDS
response_type The type of this reply, in this case
XCB_GET_GEOMETRY. 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).
depth The depth of the drawable (bits per pixel for the object).
root Root window of the screen containing
drawable.
x The X coordinate of
drawable. If
drawable is a window, the
coordinate specifies the upper-left outer corner relative
to its parent's origin. If
drawable is a pixmap, the X
coordinate is always 0.
y The Y coordinate of
drawable. If
drawable is a window, the
coordinate specifies the upper-left outer corner relative
to its parent's origin. If
drawable is a pixmap, the Y
coordinate is always 0.
width The width of
drawable.
height The height of
drawable.
border_width The border width (in pixels).
DESCRIPTION
Gets the current geometry of the specified drawable (either
Window or
Pixmap).
RETURN VALUE
Returns an
xcb_get_geometry_cookie_t. Errors have to be handled when
calling the reply function
xcb_get_geometry_reply.
If you want to handle errors in the event loop instead, use
xcb_get_geometry_unchecked. See
xcb-requests(3) for details.
ERRORS
xcb_drawable_error_t TODO: reasons?
xcb_window_error_t TODO: reasons?
EXAMPLE
/*
* Displays the x and y position of the given window.
*
*/
void my_example(xcb_connection_t *c, xcb_window_t window) {
xcb_get_geometry_cookie_t cookie;
xcb_get_geometry_reply_t *reply;
cookie = xcb_get_geometry(c, window);
/* ... do other work here if possible ... */
if ((reply = xcb_get_geometry_reply(c, cookie, NULL))) {
printf("This window is at %d, %d\n", reply->x, reply->y);
}
free(reply);
}
SEE ALSO
xcb-requests(3),
xcb-examples(3),
xwininfo(1)AUTHOR
Generated from xproto.xml. Contact xcb@lists.freedesktop.org for
corrections and improvements.
X Version 11 libxcb 1.16.1 xcb_get_geometry(3)
