I would like to know if it is possible to use the Slate Widget Reflector for an external window.
Apparently the Slate Widget Reflector allow only to pick widget from the UE4 Editor.
I would like to pick widget from my game window launched outside the editor.
Is there a way to launch the Slate Widget Reflector from the game executable to be able to debug widgets ?
Yes, you actually can launch the built-in Slate Widget Reflector in an external PC build (if it’s a Development build) by opening the console and typing WidgetReflector.
However, there is a major limitation with the native tool when used this way: in packaged builds, it only displays the low-level C++ SWidget hierarchy. It completely loses the context of your UMG UWidget wrappers. This means you cannot inspect or debug the actual UMG properties, variables, and designer-facing settings you set up in Blueprints.
I ran into this exact same frustration, which is why I developed a plugin called Runtime Details to solve it.
The latest v1.2 update includes a Remote Widget Reflector designed specifically for this scenario.
Here is a video showing how it works.
