2000-01-19  Tor Lillqvist  <tml@iki.fi>

* gdk/win32/gdkwindow-win32.c (gdk_window_clear_area): The correct
semantics (to mimic the X11 backend, which just calls XClearArea)
is to check for zero width (and height), and in that case use the
window's width minus x (height minus y). This fixes for instance
some redraw problems with gtkclist, which were easily noticeable
in the gtk file selection widget.

(gdk_window_new): Don't set WS_EX_TOPMOST for dialog
windows.