Unreal

ViveportApiDemo.h

#include "Components/ActorComponent.h"
#include "ViveportApiDemo.generated.h"
#include "ViveportApi.h"


UCLASS( ClassGroup=(Viveport), meta=(BlueprintSpawnableComponent) )
class VIVEPORTSDK_API UViveportApiDemo : public UActorComponent
{
    GENERATED_BODY()

 public:
    // Sets default values for this component's properties
    UViveportApiDemo();

    // Called when the game starts
    void BeginPlay() override;

    // Called every frame
    void TickComponent(
                        float DeltaTime,
                        ELevelTick TickType,
                        FActorComponentTickFunction* ThisTickFunction
                      ) override;

    /** The APP ID for auth verify */
    FString VIVEPORT_ID = "content's VIVEPORT ID";

    /** Public key for auth verify */
    FString VIVEPORT_KEY = "content's VIVEPORT KEY";

 private:
    // callback interface
    class MyLicenseChecker : public UViveportApi::LicenseChecker
    {
    public:
        void OnSuccess(
                        long long issue_time,
                        long long expiration_time,
                        int latest_version,
                        bool update_required
                      ) override;
        void OnFailure(
                        int errorCode,
                        const FString& errorMessage
                      ) override;
    };

    MyLicenseChecker myLicenseChecker;
};

ViveportApiDemo.cpp

#include "ViveportSDKPrivatePCH.h"
#include "ViveportApiDemo.h"

UViveportApiDemo::UViveportApiDemo()
{
    bWantsBeginPlay = true;
    PrimaryComponentTick.bCanEverTick = true;
}

// Called when the game starts
void UViveportApiDemo::BeginPlay()
{
    Super::BeginPlay();
    FString fstring = UViveportApi::Version();
    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::White, fstring);

    UViveportApi::GetLicense(&myLicenseChecker, VIVEPORT_ID, VIVEPORT_KEY);
}

// Called every frame
void UViveportApiDemo::TickComponent(float DeltaTime, ELevelTick TickType,
                                     FActorComponentTickFunction* ThisTickFunction)
{
    Super::TickComponent( DeltaTime, TickType, ThisTickFunction );
}

void UViveportApiDemo::MyLicenseChecker::OnSuccess(long long issue_time, long long expiration_time,
                                                   int latest_version, bool update_required)
{
    char result[256] = { '\0' };
    sprintf_s(result, "Verify OK!\n issue_time=%lld,\n expiration_time=%lld,\n latest_version=%d,\n
              update_required=%d", issue_time, expiration_time, latest_version, update_required);
    FString fstring(result);
    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::White, fstring);
}

void UViveportApiDemo::MyLicenseChecker::OnFailure(int error_code, const FString& error_message)
{
    char result[256] = { '\0' };
    sprintf_s(result, "Verify failed!\n error_code=%d,\n error_message=%s", error_code,
              TCHAR_TO_UTF8(*error_message));
    FString fstring(result);
    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::White, fstring);
    // DRM fail, close the content.
}