XQueryPointer(3X11)     COMMAND REFERENCE     XQueryPointer(3X11)



NAME
     XQueryPointer - get pointer coordinates

SYNOPSIS
     Bool XQueryPointer(display, w, root_return, child_return,
     root_x_return, root_y_return,
                          win_x_return, win_y_return,
     mask_return)
           Display *display;
           Window w;
           Window *root_return, *child_return;
           int *root_x_return, *root_y_return;
           int *win_x_return, *win_y_return;
           unsigned int *mask_return;

ARGUMENTS
     child_return
               Returns the child window that the pointer is
               located in, if any.

     display   Specifies the connection to the X server.

     mask_return
               Returns the current state of the modifier keys and
               pointer buttons.

     root_return
               Returns the root window that the pointer is in.

     root_x_return
     root_y_return
               Return the pointer coordinates relative to the
               root window's origin.

     w         Specifies the window.

     win_x_return
     win_y_return
               Return the pointer coordinates relative to the
               specified window.

DESCRIPTION
     The XQueryPointer function returns the root window the
     pointer is logically on and the pointer coordinates relative
     to the root window's origin.  If XQueryPointer returns
     False, the pointer is not on the same screen as the
     specified window, and XQueryPointer returns None to
     child_return and zero to win_x_return and win_y_return.  If
     XQueryPointer returns True, the pointer coordinates returned
     to win_x_return and win_y_return are relative to the origin
     of the specified window.  In this case, XQueryPointer
     returns the child that contains the pointer, if any, or else



X Version 11            1 September 1988                        1

XQueryPointer(3X11)     COMMAND REFERENCE     XQueryPointer(3X11)



     None to child_return.

     XQueryPointer returns the current logical state of the
     keyboard buttons and the modifier keys in mask_return.  It
     sets mask_return to the bitwise inclusive OR of one or more
     of the button or modifier key bitmasks to match the current
     state of the mouse buttons and the modifier keys.

     XQueryPointer can generate a BadWindow error.

DIAGNOSTICS
     BadWindow A value for a Window argument does not name a
               defined Window.

SEE ALSO
     XGetWindowAttributes(3x11), XQueryTree(3x11)
     Xlib - C Language X Interface






































X Version 11            1 September 1988                        2

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