XGCValues gcv;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
XGCValues gcv;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);