JonathanADaley

// this function requires the UserInterfaceSettings header to be included
#include Runtime/Engine/Classes/Engine/UserInterfaceSettings.h

// this function can be marked as Blueprint Pure in its declaration, as it simply returns a float
float MyBPFL::GetUMG_DPI_Scale() {
  // need a variable here to pass to the GetViewportSize function
  FVector2D viewportSize;
  // as this function returns through the parameter, we just need to call it by passing in our FVector2D variable
  GEngine->GameViewport->GetViewportSize(viewportSize);