twainSeq

twainSeq ( integer Output, integer Frames, integer Delay)

Use this function to capture a sequence from a TWAIN device currently selected in ImageWarp.

Parameters

Output

An integer between 1 and 116 specifying the number of the workspace frame into which the sequence will be placed. Values in the range of 100-116 correspond to hidden frames.

Frames

A positive integer specifying the amount of video frames to be captured into the sequence.

Delay

A positive integer specifying the delay (in milliseconds) between consecutive video frames to be captured into the sequence.

Error flags

ERR_OK

The flag set if successful.

ERR_FAILED

The flag set if failed.

Example

The following operator will capture a sequence of 64 video frames with a five seconds interval between the frames:

twainSeq(1, 64, 5000)

Remark

Please note that TWAIN interface is inherently slow and might not work well in real-time applications. If your video device is supported by an alternative driver (such as WDM or IEEE-1394), use such a driver instead of TWAIN.