function RPreview( oDevice, oReport )
local oPreview := TPreview():New( oDevice, oReport )
oDevice:oPreview := oPreview
oPreview:Activate()
return nil
function RPreview( oDevice, oReport )
local oPreview := TPreview():New( oDevice, oReport )
oDevice:oPreview := oPreview
oPreview:Activate()
return nil