check_overlay_capability
if (check_overlay_capability(B_##x) == B_OK) return (void *)x; else return (void *)0
status_t check_overlay_capability(uint32 feature);
if (check_overlay_capability(B_##x) == B_OK) return (void *)x; else return (void *)0
status_t check_overlay_capability(uint32 feature);
if (check_overlay_capability(B_##x) == B_OK) return (void *)x; else return (void *)0
status_t check_overlay_capability(uint32 feature);
if (check_overlay_capability(B_##x) == B_OK) return (void *)x; else return (void *)0
status_t check_overlay_capability(uint32 feature);
if (check_overlay_capability(B_##x) == B_OK) return (void *)x; else return (void *)0
status_t check_overlay_capability(uint32 feature);