Instance Method

beginTransparencyLayer(in:auxiliaryInfo:)

Begins a transparency layer whose contents are bounded by the specified rectangle.

Declaration

func beginTransparencyLayer(in rect: CGRect, auxiliaryInfo auxInfo: CFDictionary?)

Parameters

rect

The rectangle, specified in user space, that bounds the transparency layer.

auxiliaryInfo

A dictionary that specifies any additional information, or NULL.

Discussion

This function is identical to beginTransparencyLayer(auxiliaryInfo:) except that the content of the transparency layer is within the bounds of the provided rectangle.

See Also

Working with Transparency Layers