TIEMediaFoundationSourceReader.SetVideoInput

function SetVideoInput(index: Integer): boolean;
function SetVideoInput(const name: WideString): boolean;

Select one of the VideoInputs devices as the video source.

Parameter	Description
index	Index of the video input device. Ranges from 0 up to VideoInputs.Count - 1
name	Name of the video input device. Must be one of VideoInputs values

// Select first video input (first webcam)
ImageEnView1.IO.MediaFoundationSourceReader.SetVideoInput(0);