X Version 11 (1 September 1988) XTranslateCoordinates(XS)
NAME
XTranslateCoordinates - translate window coordinates
SYNTAX
Bool XTranslateCoordinates(display, src_w, dest_w, src_x,
src_y, dest_x_return,
dest_y_return, child_return)
Display *display;
Window src_w, dest_w;
int src_x, src_y;
int *dest_x_return, *dest_y_return;
Window *child_return;
ARGUMENTS
child_return
Returns the child if the coordinates are contained
in a mapped child of the destination window.
dest_w Specifies the destination window.
dest_x_return
dest_y_return
Return the x and y coordinates within the
destination window.
display Specifies the connection to the X server.
src_w Specifies the source window.
src_x
src_y Specify the x and y coordinates within the source
window.
DESCRIPTION
The XTranslateCoordinates function takes the src_x and src_y
coordinates relative to the source window's origin and
returns these coordinates to dest_x_return and dest_y_return
relative to the destination window's origin. If
XTranslateCoordinates returns zero, src_w and dest_w are on
different screens, and dest_x_return and dest_y_return are
zero. If the coordinates are contained in a mapped child of
dest_w, that child is returned to child_return. Otherwise,
child_return is set to None.
XTranslateCoordinates can generate a BadWindow error.
DIAGNOSTICS
BadWindow A value for a Window argument does not name a
defined Window.
SEE ALSO
Xlib - C Language X Interface
(printed 2/12/90) (1 September 1988)TranslateCoordinates(XS)