2.1.1.5 CompositingMode Enumeration

The CompositingMode enumeration defines modes for combining source colors with background colors. The compositing mode represents the enable state of alpha blending.

 typedef  enum 
 {
   CompositingModeSourceOver = 0x00,
   CompositingModeSourceCopy = 0x01
 } CompositingMode;

CompositingModeSourceOver:  Enables alpha blending, which specifies that when a color is rendered, it is blended with the background color. The extent of blending is determined by the value of the alpha component of the color being rendered.

CompositingModeSourceCopy:  Disables alpha blending, which means that when a source color is rendered, it overwrites the background color.

Graphics colors are specified by EmfPlusARGB objects.

See section 2.1.1 for the specification of additional enumerations.