Launcher

The launcher basically display webpages.

Browser Engines

The launcher supports two browser engines:

• MSHTML (Internet Explorer 11) which is BrowserType 0, 1
• WebView2 (Chrome) which is BrowserType 2

Debugging

Run C:\Windows\System32\F12\IEChooser.exe while the launcher is running. Or if you're using the WebView2 backend, set WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS="auto-open-devtools-for-tabs"

Native Communication

To communicate with native code, it uses window.chrome.webview.postMessage. This is shortened to window.external.user with this function:

window.external.user = function (e) { window.chrome.webview.postMessage(e); }

User Agent

Example: SQEXAuthor/2.0.0(Windows 7; ja-jp; 5fd2faa332)

Windows: "sqex" macOS: "macsqex PS4: "playstation 4" PS5: "playstation 5" XBox: "xbox"

Build Paths

"c:\\ws\\ver_720_winbuild\\branches\\ver_720\\trunk\\prog\\patch\\Build\\LauncherWin"