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

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"