NAME

       ReqErr - handle request errors

SYNOPSIS

       #include <InterViews/reqerr.h>

DESCRIPTION

       Some  requests  to  the  window server may generate an error.  For example, if a window is
       destroyed while it is being repositioned interactively, the request to place the window in
       the  new  position  will fail.  Normally, errors cause a process to terminate.  The ReqErr
       class is used to handle  errors  within  an  application.   The  base  class  defines  the
       attributes associated with each error, including a message string describing the error, an
       integer request code that specifies the kind of call that generated the error,  and  a  id
       object  that  was  the target of the request.  When an error occurs, the attributes of the
       current request handler are assigned and the handler's Error operation is called.

PUBLIC OPERATIONS

       ReqErr* Install()
              Use this error handler for subsequent errors and return the previous error handler.

       virtual void Error()
              Handle a detected error.  The default handler is a nop.

SEE ALSO

       Interactor(3I)