glVertex2i(r, b);
glVertex2i(l, b);
}
+{
glVertex2f(l + 0.5, t + 0.5);
glVertex2f(r - 0.5, t + 0.5);
glVertex2f(r - 0.5, b - 0.5);
glVertex2f(l + 0.5, b - 0.5);
+}
+ glVertex2f(l + 0, t + 0);
+ glVertex2f(r + 0.75, t + 0);
+ glVertex2f(r + 0.75, b + 0.75);
+ glVertex2f(l + 0, b + 0.75);
glEnd;
end;