set widget reflector application scale in init_unreal.py?

Development Pipeline & Plugins Editor Scripting
2

I’m answering my own question here. I solved this by wrapping the function that sets the application scale in a blueprintable function. Then I call it from python in a file that has to be named init_unreal.py for Unreal to run it on startup. init_unreal.py must be in the /Content/python/ folder (make it if it does not exist), or some other folder that is in the Editor’s python path. Here is the code:

.cpp


#include "GPSetApplicationScale.h"
#include "Framework/Application/SlateApplication.h"


void UGPSetApplicationScale::SetScale(float Scale)
{
FSlateApplication::Get().SetApplicationScale(Scale);
}

.h


#include "GPSetApplicationScale.generated.h"


UCLASS(Blueprintable)
class GRANDPA_API UGPSetApplicationScale : public UObject
{
GENERATED_BODY()
public:
UFUNCTION(BlueprintCallable, Category="Smoketests")
void SetScale(float Scale);
};

init_unreal.py


unreal.GPSetApplicationScale().set_scale(1.4)
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