setVideoDevice

setVideoDevice ( int Index )

Use this function to select the current video device by its index in the device list of the current video driver.

Depending on the video driver, the function performs the following actions:

Simulation	No action
BitFlow Camera Interface	Selects among multiple BitFlow boards in the order they appear in the Board list of the Video Source dialog
FireWire (IEEE-1394)	Selects among multiple FireWire cameras in the order they appear in the Camera list of the Video Source dialog
Video for Windows (VFW)	Selects among multiple VFW devices in the order they appear in the Select Device list of the Video Preferences dialog
DirectShow (WDM)	Selects among multiple WDM devices in the order they appear in the Select Device list of the Video Preferences dialog

Parameters

Index

An integer specifying the zero-based device index.

Error flags

ERR_OK

The flag set if successful.

ERR_NOTFOUND

Video device not found.

ERR_FAILED

The flag set if failed.

Example

This set of statements switches between two video devices every 10 seconds:

showVideo(TRUE)

Do

setVideoDevice(0)

wait(10000)

setVideoDevice(1)

wait(10000)

Loop