"Video" and Refresh Rate
Real devices will be fed a video signal which is used in a couple of function calls as well as for some timing sequences.
The simulator does not have any video related to it and therefore it uses an internal video refresh rate. This can be accessed in the device settings and the default value is 30 Hz.
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When using synchronization features triggered by the start of a video frame (refer to following section), please note that your simulated device refresh rate is most likely lower than a real device which usually has a default of 120 Hz.
When using features that would access the video information of the device, such as pixel mode, we use information of a given screen as selected in the option.