Name
ccontext:SetSourceRGBA -- set source RGBA
Synopsis
ccontext:SetSourceRGBA(red, green, blue, alpha)
Function
Sets the source pattern within the context to a translucent color. This color will then be used for any subsequent drawing operation until a new source pattern is set.

The color and alpha components are floating point numbers in the range 0 to 1. If the values passed in are outside that range, they will be clamped.

Note that the color and alpha values are not premultiplied.

The default source pattern is a solid pattern that is opaque black, that is, it is equivalent to ccontext:SetSourceRGB() with the arguments all set to 0.0.

Inputs
red
red component of color
green
green component of color
blue
blue component of color
alpha
alpha component of color
Show TOC