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const float AVCaptureMaxAvailableTorchLevel;
This constant always represents the maximum available torch level, independent of the actual maximum value currently supported by the device. Thus, pass this constant to the set in situations where you want to specify the maximum torch level without having to worry about whether the device is overheating and might not accept a value of 1.0 as the maximum.
hasA Boolean value that specifies whether the capture device has a torch.
torchIndicates whether the torch is currently available for use.
torchA Boolean value indicating whether the device’s torch is currently active.
torchThe current torch brightness level.
AVCaptureConstants to specify the capture device’s torch mode.
torchThe current torch mode.
- isReturns a Boolean value that indicates whether the device supports the specified torch mode.
- setSets the illumination level when in torch mode.