Pointer_Skin1 = hit.skin1;

bmap_lock(Pointer_Skin1, 0);
pixel = pixel_for_bmap(Pointer_Skin1, Pointer_Skin1.x, Pointer_Skin1.y);
bmap_unlock(Pointer_Skin1); // unlock the locked bitmap

pixel_to_vec(temp, alpha, 8888, pixel);