VTRAWProcessingParameterChangeHandler
A function the system calls when processing parameters change.
Declaration
typedef void (^)(const struct __CFArray *) VTRAWProcessingParameterChangeHandler;Parameters
- newParameters:
An array containing the new parameter details. This follows the same form as the array returned from Vtrawprocessingsessioncopyprocessingparameters.
Discussion
The system invokes this callback when available parameters or parameter values change without an explicit call to VTRAWProcessingSessionSetProcessingParameters. This is intended to allow the client to update any UI driven by these parameters.