Affinity Screen Capture (including Freestyle) works with graphical user interfaces (GUIs) that utilize input controls based on standard Windows control classes. Other controls that implement window classes, handles, and standard message handling are also supported. Examples of common control classes that work with Affinity include: Edit (text boxes); Rich Edit; ComboBox (drop downs); Button (push and radio); and Static (labels).

Most screens can be configured to automate searches and import/scanning using screen recognition techniques. However, screens whose controls change size and position (such as when the window resizes) may prevent the screen from being recognized. In cases where the screen cannot be
consistently recognized for automation, the Freestyle dialog can still be used to make searching/scanning functions easier and faster.

Application development environments that implement GUIs compatible with Affinity Screen Capture include (but are not limited to) Microsoft® Visual Basic, Microsoft® Visual C++, Microsoft® VB.NET, Microsoft® C#, Microsoft® J#, and Borland® Delphi®.

Affinity includes a fully-documented application programming interface (API) that is accessible from practically any development environment, including .NET and scripting languages like JavaScript and VBScript. Affinity exposes the interface through both command line (shell) functions, and an ActiveX/COM interface. The Affinity API is a perfect fit for Visual Basic for Applications (VBA) macros in ESRI® ArcMap® and Microsoft® Office. Many applications can be image enabled safely and quickly using examples directly from the online Affinity API documentation: http://affinity.datanow.net/api.