eDI() [UD Library]

An easy function that reads the state of one digital input. This is a simple alternative to the very flexible IOType based method normally used by this driver.

When needed, this function automatically configures the specified channel as a digital input.

Declaration:

LJ_ERROR _stdcall eDI ( LJ_HANDLE Handle,

long Channel,

long *State)

Parameter Description:

Returns: LabJack errorcodes or 0 for no error.
Inputs:

• Handle – Handle returned by OpenLabJack().
• Channel – The channel to read. 0-19 corresponds to FIO0-CIO3.

Outputs:

• State – Returns the state of the digital input. 0=False=Low and 1=True=High.