diff options
Diffstat (limited to 'src/Fl_Window.cxx')
| -rw-r--r-- | src/Fl_Window.cxx | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/Fl_Window.cxx b/src/Fl_Window.cxx index 20bb520fd..b6e5985bc 100644 --- a/src/Fl_Window.cxx +++ b/src/Fl_Window.cxx @@ -278,6 +278,21 @@ void Fl_Window::icon(const void * ic) { icon_ = ic; } +/** + Finds the x/y offset of the current window relative to the top-level window. + \param[out] xoff,yoff Returns the x/y offset + \returns the top-level window +*/ +Fl_Window* Fl_Window::window_offset(int& xoff, int& yoff) const { + xoff = yoff = 0; + const Fl_Window *win = (const Fl_Window*)this; + while (win && win->window()) { + xoff += win->x(); // accumulate offsets + yoff += win->y(); + win = win->window(); // walk up window hierarchy + } + return (Fl_Window*)win; +} // // End of "$Id$". |