The TIETwainParams object contains many properties and methods to control Twain scanners without using the default dialog.
Do not create this class directly, but access via TImageEnMView.MIO.TwainParams or TImageEnView.IO.TwainParams
// Acquire a black/white (1bit) image from the default Twain device ImageEnMView1.MIO.TwainParams.PixelType.CurrentValue := 0; If ImageEnMView1.MIO.SetAcquireSource(ieaTwain, Default_Device) then ImageEnMView1.MIO.Acquire();