TIEBitmap.DetachAlphaChannel

function DetachAlphaChannel(CreateIfNotExists: Boolean = False): TIEBitmap;

Detach the current alpha channel (if it exists) and return it.

Note: It is the responsibility of application to free it.

Parameter	Description
CreateIfNotExists	Creates an alpha channel if the image doesn't have one

// Detach alpha channel
alphaBMP := ImageEnView1.IEBitmap.DetachAlphaChannel();