This disclosure is directed to the control of graphical output of a second computing device by a first computing device. According to these techniques, a first computing device may be configured to generate at least one control object that includes at least one control script. The at least one control script is configured to be executed according to an execution environment (e.g., a graphics processing environment) of the second computing device. Once executed, the at least one control script may be configured to access a native application programming interface (API) of the second computing device to cause graphical data to be presented via an output interface (e.g., a display) communicatively coupled to the second computing device based on a context defined by the at least one control object.