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@themightypenguin/electron-overlay-window

v2.0.4

Published

[![](https://img.shields.io/npm/v/@themightypenguin/electron-overlay-window/latest?color=CC3534&label=electron-overlay-window&logo=npm&labelColor=212121)](https://www.npmjs.com/package/@themightypenguin/electron-overlay-window)

Downloads

3

Readme

electron-overlay-window

Library for creating overlay windows, intended to complement Electron.

Responsible for:

  • Finding target window by title
  • Making overlay window a child of target
  • Keeping position and size of overlay window with target in sync
  • Emits lifecycle events

yarn demo:electron

Important notes:

  • You can initialize library only once (overlay window must never die, and title by which target window is searched cannot be changed)
  • You can have only one overlay window
  • Found target window remains "valid" even if its title has changed
  • Correct behavior is guaranteed only for top-level windows (A top-level window is a window that is not a child window, or has no parent window (which is the same as having the "desktop window" as a parent))
  • Windows: target window must have the same or lower privilege level than overlay window
  • X11: library relies on EWHM, more specifically _NET_ACTIVE_WINDOW, _NET_WM_STATE_FULLSCREEN, _NET_WM_NAME

Supported backends:

  • Windows (7 - 10)
  • Linux (X11)

Recommended dev utils

  • Windows: AccEvent (accevent.exe) and Inspect Object (inspect.exe) from Windows SDK
  • X11: xwininfo, xprop, xev

Publishing

Run yarn build then yarn prebuild, then npm publish