License activation (Windows)

Using Paddle licenses to manage app access requires creation of a Paddle SDK Product in your seller dashboard.

Activation Dialog

The SDK provides a standard license activation dialog, which can be invoked whenever the app is found in an unlicensed state:

// Create the Product we want to work with:
PaddleProduct product = PaddleProduct.CreateProduct(ProductId,
                                                    ProductType.SDKProduct,
                                                    null);

// Refresh to ensure we have up to date information locally for the product
// Remote trial values will supersede local
product.Refresh((success) =>
{
    if (success)
    {
        Paddle.Instance.ShowProductAccessWindowForProduct(product);
    }
});

Programmatic (“Silent”) Activation

If you’re making use of our licensing but want to use your own UI then you’ll need to make the activation call manually and handle the result:

product.ActivateWithEmail("example@email.com",
                          "A1B2C3-D4E5F6-G7H8I9",
                          (state, errorMessage) =>
                          {
                              // Handle the activation result
                          });

Override Licensing UI

You can also override our activation UI. This will cause the SDK to use your custom window instead of the built-in Licensing Window.

To do this you need to ensure your window implements the ILicenseWindow interface and inject into the Paddle Instance by calling the following method:

Paddle.Instance.OverrideLicenseWindow<MyLicenseWindow>();