Controlling Digital Input

A computing device includes a digital input system that allows freehand digital inputs to be received (e.g., via movement of a pen, stylus, finger, etc.). The digital input system provides functionality allowing applications to receive digital inputs from a user and control the display of data based on the digital inputs. The digital input system receives digital input from a user and analyzes the digital input to collect input data for the digital input. As the digital input is received, the input data is made available to an application, allowing the application to operate on the input data (e.g., modify the input data and/or generate additional input data) and provide the operated-on input data to the digital input system. The digital input system then proceeds to control the display of data based on the operated-on input data.