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Man Pages


Manual Reference Pages  -  XCB_GET_GEOMETRY (3)

NAME

xcb_get_geometry - Get current window geometry

CONTENTS

Synopsis
     Request function
     Reply datastructure
     Reply function
Request Arguments
Reply Fields
Description
Return Value
Errors
Example
See Also
Author

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 *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.
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X Version 11 XCB_GET_GEOMETRY (3) libxcb 1.11.1

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