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.. wxPython Phoenix documentation
This file was generated by Phoenix's sphinx generator and associated
tools, do not edit by hand.
Copyright: (c) 2011-2018 by Total Control Software
License: wxWindows License
.. include:: headings.inc
.. _wx.CompositionMode:
==========================================================================================================================================
|phoenix_title| **wx.CompositionMode**
==========================================================================================================================================
The `CompositionMode` enumeration provides the following values:
================================================================================ ================================================================================
**Description** **Value**
================================================================================ ================================================================================
``wx.COMPOSITION_INVALID`` Indicates invalid or unsupported composition mode.
``wx.COMPOSITION_CLEAR`` `R` = 0
``wx.COMPOSITION_SOURCE`` `R` = S
``wx.COMPOSITION_OVER`` `R` = `S` + `D*`(1 - `Sa`)
``wx.COMPOSITION_IN`` `R` = `S*` `Da` `
``wx.COMPOSITION_OUT`` `R` = `S*`(1 - `Da`)
``wx.COMPOSITION_ATOP`` `R` = `S*` `Da` `+` `D*`(1 - `Sa`)
``wx.COMPOSITION_DEST`` `R` = `D`, essentially a noop
``wx.COMPOSITION_DEST_OVER`` `R` = `S*`(1 - `Da`) + `D`
``wx.COMPOSITION_DEST_IN`` `R` = `D*` `Sa` `
``wx.COMPOSITION_DEST_OUT`` `R` = `D*`(1 - `Sa`)
``wx.COMPOSITION_DEST_ATOP`` `R` = `S*`(1 - `Da`) + `D*` `Sa` `
``wx.COMPOSITION_XOR`` `R` = `S*`(1 - `Da`) + `D*`(1 - `Sa`)
``wx.COMPOSITION_ADD`` `R` = `S` + `D`
================================================================================ ================================================================================
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