CrDeviceProperty_PushAutoFocus

Get/Set the push auto focus.

CrDataType: CrDataType_UInt16Array

Parameter Code	Explanation
CrPushAutoFocus_Up	Up
CrPushAutoFocus_Down	Down

Execute Hold when value is Down (0x0002) and cancel Hold when Up (0x0001).

When the focus mode is AF, it works MF while the button is hold.

When the focus mode is MF, it works AF while the button is hold.