spiegel-keyman/web/docs/engine/reference/util/rgba.md at b32c236103d91bbbcb35f00a5cca89590bc390d9

mirror of https://github.com/keymanapp/keyman.git synced 2026-08-05 16:35:33 +00:00

Marc Durdin 6c145cb775 refactor(web): move web engine help to app repo

Note: build.sh updated to make sure that test:help build action:target
doesn't also call test.sh by adding `:_all` meta-target.

Note: CI will need a new help-keyman-com.sh build step to deploy web
engine help.

Fixes: #12347

2024-10-31 11:00:06 +07:00

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title
rgba

Summary

Browser-independent alpha-channel management.

Syntax

keyman.util.rgba(s, r, g, b, a);

Parameters

s: Type: Element; Element style object
r: Type: number; Value for red (0-255)
g: Type: number; Value for green (0-255)
b: Type: number; Value for blue (0-255)
a: Type: number; Value for alpha/opacity (0-1.0)

Return Value

string: Background color CSS value.

Description

This function returns the required string value for setting background transparency, and applies an appropriate a filter to the element for IE versions before IE9.

655 B Raw Blame History