+ if(rband.width | rband.height) {
+ glPushAttrib(GL_ENABLE_BIT);
+ glDisable(GL_DEPTH_TEST);
+ glDisable(GL_LIGHTING);
+
+ glEnable(GL_COLOR_LOGIC_OP);
+ glLogicOp(GL_XOR);
+
+ glBegin(GL_LINE_LOOP);
+ glColor3f(1, 1, 1);
+ glVertex2f(rband.x, rband.y);
+ glVertex2f(rband.x + rband.width, rband.y);
+ glVertex2f(rband.x + rband.width, rband.y + rband.height);
+ glVertex2f(rband.x, rband.y + rband.height);
+ glEnd();
+
+ glPopAttrib();
+ }
+