xcb_query_pointer - get pointer coordinates

       Generated from xproto.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.

X Version 11                                      libxcb 1.17.0                             xcb_query_pointer(3)

       Gets the root window the pointer is logically on and the pointer coordinates relative to  the  root  win‐
       dow's origin.

xcb_window_error_t
                 The specified window does not exist.

       xcb_query_pointer - get pointer coordinates

response_type
                 The type of this reply, in this case XCB_QUERY_POINTER. 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).

       same_screen
                 If  same_screen  is  False,  then the pointer is not on the same screen as the argument window,
                 child is None, and win_x and win_y are zero. If same_screen is True, then win_x and  win_y  are
                 the  pointer  coordinates relative to the argument window's origin, and child is the child con‐
                 taining the pointer, if any.

       root      The root window the pointer is logically on.

       child     The child window containing the pointer, if any, if same_screen  is  true.  If  same_screen  is
                 false, XCB_NONE is returned.

       root_x    The pointer X position, relative to root.

       root_y    The pointer Y position, relative to root.

       win_x     The pointer X coordinate, relative to child, if same_screen is true. Zero otherwise.

       win_y     The pointer Y coordinate, relative to child, if same_screen is true. Zero otherwise.

       mask      The  current logical state of the modifier keys and the buttons. Note that the logical state of
                 a device (as seen by means of the protocol) may lag the physical state if device event process‐
                 ing is frozen.

conn      The XCB connection to X11.

       window    A  window to check if the pointer is on the same screen as window (see the same_screen field in
                 the reply).

       Returns  an  xcb_query_pointer_cookie_t.  Errors  have  to  be  handled  when  calling the reply function
       xcb_query_pointer_reply.

       If you want to handle errors in the event loop  instead,  use  xcb_query_pointer_unchecked.  See  xcb-re‐quests(3) for details.

xcb-requests(3)

#include<xcb/xproto.h>Requestfunction

       xcb_query_pointer_cookie_t xcb_query_pointer(xcb_connection_t *conn, xcb_window_t window);

   Replydatastructure
       typedef struct xcb_query_pointer_reply_t {
           uint8_t      response_type;
           uint8_t      same_screen;
           uint16_t     sequence;
           uint32_t     length;
           xcb_window_t root;
           xcb_window_t child;
           int16_t      root_x;
           int16_t      root_y;
           int16_t      win_x;
           int16_t      win_y;
           uint16_t     mask;
           uint8_t      pad0[2];
       } xcb_query_pointer_reply_t;

   Replyfunction

       xcb_query_pointer_reply_t *xcb_query_pointer_reply(xcb_connection_t *conn,
              xcb_query_pointer_cookie_t cookie, xcb_generic_error_t **e);