compile subroutine WIN_INVOICE_CM_VALID(ConvType, DataIo, Branch, ReturnedValue)
begin condition
pre:
post:
end condition

$insert logical
$insert invoice_equ
$insert msg_equates
declare function msg, get_property, set_property
equ valid$         to 0    ;* successful
equ invalid_msg$   to 1    ;* bad data       -   print error message window
equ invalid_conv$  to 2    ;* bad conversion -          "         "
equ invalid_nomsg$ to 3    ;* bad but do not print the error message window
equ CrLf$          to char(13):char(10)
* this validates the invoice cm number in windows like car
ReturnedValue = DataIo       
status() = Valid$              
*
begin case
   case ConvType = 'ICONV'
      CurCust = get_property( @window:'.CUST_NO', 'TEXT' )
      InvRec = xlate( 'INVOICE', DataIo, '', 'X' )
      if ( DataIo[1,2] = 'CM' ) and ( CurCust = InvRec<invoice_cust_no$> ) else
          MsgInfo = ''
          MsgInfo<mtext$> = DataIo:' is not a VALID Credit Memo for ':oconv( CurCust, '[XLATE_CONV,COMPANY*CO_NAME]' )
          MsgInfo<micon$> = 'H'
          Void = msg( '', MsgInfo )
          status() = invalid_nomsg$
      end
   case ConvType = 'OCONV'
      * no output
      ReturnedValue = DataIo
   case otherwise$
      ReturnedValue = ''
      status() = invalid_conv$
end case
return

