3. demo

11. Windows Phone Developer blog, March 2011

14. // get current product
var currentProduct = Windows.ApplicationModel.Store.CurrentProduct;
// get the license information
var licenseInformation = currentProduct.licenseInformation;
// check to see if the user has an active non-trial license
if (licenseInformation.isTrial) {
// user has trial version of the application
// prompt them to purchase before so we can enable full functionality
currentProduct.requestProductPurchaseAsync().then(
function () {
// Purchase succeeded
});
}

15. // can’t do in-app purchase in trial mode, must convert first
if (!appLicensingInformation.isTrial) {
//load the listings with all the products
currentApp.loadListingInformationAsync().then(
function (listing) {
//lookup a specific product
var product1 = listing.productListings.lookup("product1");
if (!product1.isActive) {
// purchase
currentApp.requestProductPurchaseAsync("product1").then(
enableProduct1 );
}
});

17. 1 2 3
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