Can I access UPROPERTY meta series define on C++?

Development Programming & Scripting C++
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1

Hello. Unreal Engine supports UPROPERTY meta series defines like “UPROPERTY(EditAnywhere, meta = (ClampMin = “-1.0”, ClampMax = “-100”, UIMin = “-1.0”, UIMax = “-100”))
float valueX;”.
On C++ my question is How to figure out that the Value of defined “ClampMin” of valueX.
Any hints are welcome, Thanks.

2
  • Access the UClass via YourObject->GetClass() or YourClass::StaticClass()
  • Access the FProperty via UClass->FindPropertyByName(“PropName”)
  • Access metadata via FProperty->GetMetaData
UClass* Class = AMyActor::StaticClass();
if (auto Prop = Class->FindPropertyByName("MyProp"))
{
    FString sClampMax = Prop->GetMetaData("ClampMax");
    float ClampMax;
    LexFromString(ClampMax, *sClampMax);
    UE_LOG(LogTemp, Log, TEXT("ClampMax: %f"), ClampMax);
}

Note that metadata is only available in editor builds, as it is stripped from shipping builds.

2 Likes
3

Thanks million. Very helpful to me.