getInputBit

err = getInputBit ( integer Bit )

Use this function to read the state of the specified general purpose input bit (GPIN) on the currently selected framegrabber.

Parameters

Bit

Integer specifying the zero-based index of the input bit.

Return value

TRUE if the bit is set or FALSE otherwise.

Error flags

ERR_OK

The flag set if successful.

ERR_FAILED

The flag set if failed.

Example

This set of statements performs the continuous acquisition when input bit #0 is set, and stops it when the bit is reset.

do

wait(5)

if getInputBit(0)=TRUE then

grabim(1)

endif

loop

Remark

If you use BitFlow framegrabbers, the valid values of the input bit index are 0 for RoadRunner and R3 Diff boards, 0-2 for R3 CL, 0-5 for Raven and 0-6 for R64.