BitmapBounds
BBitmap testBmp(helper.BitmapBounds(), B_RGB32);
BBitmap testBmp8(helper.BitmapBounds(), B_CMAP8); // Create an 8-bit bitmap the same size
: bmp1(BitmapBounds(which), B_CMAP8),
bmp2(BitmapBounds(which), B_CMAP8),
bmpTemp(BitmapBounds(which), B_CMAP8),
return BitmapBounds(size);