Ref Create() comments say that one should "set your Config before creating App".

However, as AppWin::AppWin() constructor overrides with Platform::instance().set_config, it has no effect.

For example, if I load https://google.co.kr like below,

auto& platform = ultralight::Platform::instance();

Config config;
config.font_family_standard = "Malgun Gothic";
config.font_family_fixed = "Malgun Gothic";
config.font_family_serif = "Malgun Gothic";
config.font_family_sans_serif = "Malgun Gothic";
config.user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36";

platform.set_config(config);

app_ = App::Create();

The result is like this:

The CORRECT way to setup config is,

app_ = App::Create();

auto& platform = ultralight::Platform::instance();

Config config;
config.font_family_standard = "Malgun Gothic";
config.font_family_fixed = "Malgun Gothic";
config.font_family_serif = "Malgun Gothic";
config.font_family_sans_serif = "Malgun Gothic";
config.user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36";

platform.set_config(config);

app_->renderer() = Renderer::Create(); //this overides default config with 'my' config

which leads to Chrome-like correctly rendered scene.

You're stating that Ultralight is designed to integrate well into existing game engines. However, looking at the GPUContextD3D12, you can only create a new device by passing a hwnd. I would love to see a constructor that allows you to pass an existing device - thats mostly the case when integrating into a game and would make things way easier. Also for me it'd be a hurdle to get into ultralig.ht.

I've tested it on live of AntiX base x64.
Output doesn't show up, but logic works as expected.

In order to create a VST plugin, the host creates a window and passes the reference to the plugin to render on. I'd like to be able to use Ultralight for this, but it does not seem that it's possible to pass a previously created window like this.

Could this either a) be documented or b) be implemented?

Thanks much!

[GetFileMimeType] Bin/launcher-ui/js/app.js = text/plain
[GetFileMimeType] Bin/launcher-ui/css/main.css = text/css
[Ultralight] [Console]: [JS] [Error] TypeError: 'text/plain' is not a valid JavaScript MIME type. (@1:11)

I see the default platform filesystem implementation on Windows uses registry to check for MIME type. However...

Turns out on some systems it's actually set to text/plain for .js files in the registry! I'd propose adding some hardcoded mapping for the most common web extensions, especially that WebCore will refuse to load a .js file with wrong MIME type, apparently, unlike Firefox and Chromium. I guess either that or make a patch to ignore wrong MIME type for JS files?

There is a huge list of boilerplate to fill. Do I really need to implement file deletion and getting free volume space if I only want to display a page? Why is even OpenTemporaryFile separate from OpenFile? Do I need to write my own String16Vector implementation?

Hi,
I have the taskbar icon with a .rc file. No problem for this.
But, How I can use my .rc Icon ID for the Window? I don't find any way to access HWND (for Windows).

Thanks!