Region As Loop Control

Hello,

Does anyone know an easy way to test if a GDI region is non-empty?

Maybe:

Code:

---

RECT rc;

while (GetRgnBox(hRgn, &rc) != NULLREGION)
{
    ...
}

---

Well later on I tried using:-

Code:

---

if (CombineRgn(hRgn, hRgn, NULL, RGN_COPY) != NULLREGION)
{
    ...
}

---

I dunno what it's like for efficiency but it doesn't need a RECT. Thanks anyway. ;)