Citrix Systems, Inc.
Providing remote access to applications through interface hooks

Abstract:

Methods, systems, and computer-readable media for providing remote access to applications executing on a host device are presented. Aspects described herein may enable a host device to provide remote access to applications executing in a user session by hooking one or more APIs (or other interfaces) associated with an application instance and a window composition module. Dynamically assigned ports may be generated and used to allow a client device to provide remote user input to an application instance operating in a remote access mode. One or more APIs associated with the application instance may be hooked to provide the remote user input to an input queue of the application instance, bypassing an operating system input queue in some embodiments. APIs associated with the application instance and the window composition module may be hooked to allow the host device to recognize window textures generated by the application instance. These recognized window textures may be sent to the remote client device. As a result, according to some aspects, a host device may enable remote access to the application instance by providing remote input to the application instance and forwarding output from the application instance to the remote client device. These and other features will be discussed further herein.