Blend mode used for drawing operations. More...

Public Types
enum	Mode { SourceCopy = 0, SourceOver = 1 }
	Supported composition operators. More...

Public Member Functions
	CompositionMode (Mode m=SourceCopy)
	Constructs a composition mode.

CompositionMode &	operator= (Mode m)
	Assigns a new composition operator.

	operator Pt::uint32_t () const
	Converts the mode to its integral representation.

Detailed Description

CompositionMode selects how new drawing results are combined with the existing pixels of a target.

Member Enumeration Documentation

enum Mode

Enumerator
SourceCopy	Copies source pixels without blending.
SourceOver	Blends source pixels over the destination using source alpha.