Abstract: Pen input received by a computing device may first be evaluated to determine an associated intent. For example, it may be determined whether it is intended to be handwriting input, in which case the pen input may be intercepted (e.g., rather than provided to an underlying application for further processing). Subsequently, a target determination is made, where the pen input is processed to determine which input field should receive the input. When the pen input is processed to generate handwriting input, context associated with a determined input field may be used to improve recognition accuracy. Finally, various techniques may be used to ultimately provide the handwriting input to the determined input field, for example according to the set of capabilities that is supported by an application associated with the input field. Similarly, aspects of the disclosed system may be disabled or adapted when the application does not support such functionality.

Abstract: Animations are displayed on a user interface (UI) of a computing device using one of multiple different animation system modes, each animation system mode operating in a different manner to determine how to change the display for an animation. The animation can be on a particular object that is displayed by the computing device (e.g., scrolling a list, moving an icon or character from one location to another) and/or can be on the display as a whole (e.g., panning or scrolling a view of the whole display). The multi-mode animation system operates to select an animation system mode on a frame by frame basis. For each frame of content being displayed on the display device, the multi-mode animation system selects an appropriate one of the animation system modes to use for generating the content of that frame.

Abstract: User input that is part of a user interaction with a computing device is received by a system module. The system module notifies the application of the user input, and the application determines whether the application is to handle the user interaction or the whether the operating system is to handle the user interaction. For user interactions that the operating system is to handle, the application notifies the operating system to handle the user interaction. For the duration of the user interaction, the operating system then determines what changes to make to a display of data based on the user interaction and need not (and typically does not) notify the application of the user input. Thus, the application hands off the user interaction to the operating system.

Abstract: Animations are displayed on a user interface (UI) of a computing device using one of multiple different animation system modes, each animation system mode operating in a different manner to determine how to change the display for an animation. The animation can be on a particular object that is displayed by the computing device (e.g., scrolling a list, moving an icon or character from one location to another) and/or can be on the display as a whole (e.g., panning or scrolling a view of the whole display). The multi-mode animation system operates to select an animation system mode on a frame by frame basis. For each frame of content being displayed on the display device, the multi-mode animation system selects an appropriate one of the animation system modes to use for generating the content of that frame.