Package: cairo
Function cairo:set-source-rgba
Lambda Listcairo:set-source-rgba (cr red green blue alpha) ArgumentsDetails
Sets the source pattern within the Cairo 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 0.0 to 1.0. If the values passed in are outside that
range, they will be clamped. The default source pattern is opaque black, that is, it is equivalent to (cairo:set-source-rgba cr 0.0 0.0 0.0 1.0) Notes | See also |
2025-1-2