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NAME

       XQueryPointer - get pointer coordinates

SYNTAX

       Bool XQueryPointer(Display *display, Window w, Window *root_return,
              Window *child_return, int *root_x_return, int *root_y_return,
              int *win_x_return, int *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 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(3), XQueryTree(3)
       Xlib - C Language X Interface