QLM includes 2 distinct sets of APIs.

QLM .NET based API

The QLM .NET API can be used on Windows with multiple programming languages such as VC++, Delphi, VBA (Excel, Access, Office), VB6, VB.NET, C# and much more.

Use of the QLM .NET API requires the .NET Framework on client systems.

The QLM .NET API is divided into several categories:

QLM Client Side API 

This API includes all methods that you would call from within your application and that perform license validation locally without contacting the License Server.

QLM License Server Application API 

This API includes all methods that you would call from within your application and that communicate with the License Server.

QLM License Server Management API

This API includes advanced methods that you shoud call from your server or ecommerce platform. This API should never be called from within the application.

QLM Floating License API

This API includes methods that you would call from your application to implement floating licenses.

QLM Analytics API

This API includes methods that you would call from your application to publish Analytics data to the License Server

QLM REST API or HTTP methods

The HTTP Methods are methods that can be invoked via a URL. These methods can be invoked from cross platform apps (Java, Objective-C, Javascript, Qt, etc.) or from your eCommerce provider during the purchase process. 

The REST API is not quite as extensive as the .NET API but covers essential functionality such as:

• Validating a license (ValidateLicenseHttp)
• Activating a license (ValidateLicenseHttp)
• Checking if a license was revoked (ValidateLicenseHttp)
• Deactivating a license (ReleaseLicenseHttp)
• Publishing Analytics (AnalyticsAddInstallHttp, AnalyticsRemoveInstallHttp, AnalyticsUpdateInstallHttp, AnalyticsUpdateLastAccessedDateHttp)
• Getting the latest version (GetLatestVersionHttp)

Use of the QLM REST API does not require the .NET Framework on client systems.