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); }

Functions

systemConfig

Opens the system config program.

requestExit

Exits the launcher.

requestReboot

Despite the name, the launcher doesn't come back from quitting. Maybe used on console?

link

Opens an external URL in your default web browser.

eulaOk

Sets the EulaAgreement in your FFXIV_BOOT.cfg to 1.

requestDP

{"id": 1}

requestConfig

{"lang":"en","region":2,"eula":0,"startup":0,"issteam":0,"query":"none","ver":"2025.03.10.0000.0001(11500960)","skip_confirm_expansion_install_dialog":"0","installedExVersions":"","dx11available":"1","dx11enabled":"1","maxex":"-1","characreation":"0","is64bit":"1","product":"-1","browser":"2","ie11available":"1","theme":"0","dataCenter":"0","productization":"-1","product_ex":"0"}

requestDisplaySettings

{"bg":"{\"v\":700,\"d\":[1,0,0,0,0,0]}"}

requestResumeInfo

{"state":0,"ID":9}

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"