NAME
    CxMsgID -- obtain the ID of a commodity message. (V36)

SYNOPSIS
    id = CxMsgID(cxm);
                 A0

    LONG CxMsgID(struct CxMsg *);

FUNCTION
    This function returns the value associated with the cause or source
    of the commodity message 'cxm'. Values are provided by the application
    when a sender or custom object is created.

INPUTS
    cxm - the commodity message to inquire about

RESULTS
    id - if not specified by the application, the ID value of a
        commodity message will be 0. It is suggested that using
         non-zero values in your program as a rule may identify some
         possible errors.

SEE ALSO
    cx_lib/cxsender(), cx_lib/cxcustom()