Is Visible hook

Use this hook to (conditionally) remove standard context messages.

See this example:

function extern boolean com.infor.ln.businesscontext_tcibd001_1.is.visible()
{
        |* Don't send context in case of purchased item
        select  tcibd001.kitm
        from    tcibd001
        where   tcibd001.item = :tcibd001.item
        and     tcibd001.kitm = tckitm.purchase
        selectdo        
                return(false)
        endselect
	 return(true)
}