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 par-
ent'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 par-
ent'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 *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
", 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.
XCB
2014-06-10 xcb_get_geometry(3)