Possible state of input pin.

Values of this enumeration:

• NONE - Corresponding InputFunction parameter is UNKNOWN
• LOW - The line is in a low state
• HIGH - The line is in a high state
• WENTLOW - In the LOW state, but was in the HIGH state during the last InputState reading
• WENTHIGH - In the HIGH state, but was in the LOW state during the last InputState reading
• DISCONNECTED - Parameter is not documented in Multicam documentation
• OPEN - The line is in an open state. The impedance is above 10 kiloohm.