WPF_CTRL_HFLIP
flip |= BIT(WPF_CTRL_HFLIP);
flip ^= BIT(WPF_CTRL_VFLIP) | BIT(WPF_CTRL_HFLIP);
| BIT(WPF_CTRL_HFLIP);
if (wpf->flip.active & BIT(WPF_CTRL_HFLIP))
if (flip & BIT(WPF_CTRL_HFLIP) && !wpf->flip.rotate)
if (wpf->flip.rotate && !(flip & BIT(WPF_CTRL_HFLIP))) {