PyBLENDFUNCTION Object

Tuple of four small ints used to fill a BLENDFUNCTION struct Each int must fit in a byte (0-255).

Win32 API References

Search for BLENDFUNCTION at msdn, google or google groups.

Items

[0] int : BlendOp: Only defined value is AC_SRC_OVER (0)

[1] int : BlendFlags: None currently defined, must be 0

[2] int : SourceConstantAlpha: Transparency to be applied to entire source. (255 is opaque)

[3] int : AlphaFormat: Only defined flag is AC_SRC_ALPHA, used when src bitmap contains per-pixel alpha