ReqErr - handle request errors

       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.

       ReqErr - handle request errors

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

       virtualvoidError()
              Handle a detected error.  The default handler is a nop.

Interactor(3I)

InterViews                                        15 June 1987                                        ReqErr(3I)

#include<InterViews/reqerr.h>