/* create buffer to reduce flicker */
buffer = XCreatePixmap(dpy, window, sizex, sizey, xgwa.depth);
buffer_gc = XCreateGC(dpy, buffer, gcflags, &gcv);
/* create buffer to reduce flicker */
buffer = XCreatePixmap(dpy, window, sizex, sizey, xgwa.depth);
buffer_gc = XCreateGC(dpy, buffer, gcflags, &gcv);