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Progress Bar in Taskbar (Windows, macOS, Unity)
On Windows a taskbar button can be used to display a progress bar. This enables a window to provide progress information to the user without the user having to switch to the window itself.
On macOS the progress bar will be displayed as a part of the dock icon.
The Unity DE also has a similar feature that allows you to specify the progress bar in the launcher.
Progress bar in taskbar button:
All three cases are covered by the same API - the setProgressBar() method
available on instances of BrowserWindows. Call it with a number between 0
and 1 to indicate your progress. If you have a long-running task that's
currently at 63% towards completion, you'd call it with setProgressBar(0.63).
Generally speaking, setting the parameter to a value below zero (like -1)
will remove the progress bar while setting it to a value higher than one
(like 2) will switch the progress bar to intermediate mode.
See the API documentation for more options and modes.
const { BrowserWindow } = require('electron')
const win = new BrowserWindow()
win.setProgressBar(0.5)