alphaInfoMask
The alpha information mask. Use this to extract alpha information that specifies whether a bitmap contains an alpha channel and how the alpha channel is generated.
Declaration
static var alphaInfoMask: CGBitmapInfo { get }The alpha information mask. Use this to extract alpha information that specifies whether a bitmap contains an alpha channel and how the alpha channel is generated.
static var alphaInfoMask: CGBitmapInfo { get }