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XtAppSetErrorMsgHandler()			     XtAppSetErrorMsgHandler()

Name
  XtAppSetErrorMsgHandler - set the high-level error handler.

Synopsis
  XtErrorMsgHandler XtAppSetErrorMsgHandler(app_context, msg_handler)
	 XtAppContext app_context;
	 XtErrorMsgHandler msg_handler;

Inputs
  app_context
	    Specifies the application context.

  msg_handler
	    Specifies  the  new	 high-level  fatal error message handling
	    procedure, which should not return.

Returns
  A pointer to the previously installed high-level error handler.

Description
  XtAppSetErrorMsgHandler()  registers	the  procedure	 msg_handler   in
  app_context  as  the	procedure  to  be invoked by XtAppErrorMsg().  It
  returns a pointer to the previously installed high-level error handler.

  The default high-level fatal error handler provided by  the  Intrinsics
  is  named  _XtDefaultErrorMsg().   It	 looks	up a message in the error
  resource database (see  XtAppGetErrorDatabaseText()),	 substitutes  the
  supplied  parameters	into the message, and calls XtError().	See XtEr‐
  rorMsgHandler(2) for an explanation of how to write a customized  high-
  level error handler.

  msg_handler should generally invoke the low-level error handler to dis‐
  play the message and exit.  Fatal error  message  handlers  should  not
  return.  If one does, subsequent X Toolkit behavior is undefined.

Usage
  Note	that  application-context-specific  error  handling is not imple‐
  mented on many systems.  Most implementations will have just one set of
  error	 handlers.   If	 they are set for different application contexts,
  the one performed last will prevail.

See Also
  XtAppError(1), XtAppErrorMsg(1), XtAppGetErrorDatabaseText(1),
  XtAppSetErrorHandler(1), XtAppSetWarningHandler(1), XtAppSetWarningMs‐
  gHandler(1), XtAppWarning(1), XtAppWarningMsg(1),
  XtErrorHandler(2), XtErrorMsgHandler(2).

Xt - Error Handling				     XtAppSetErrorMsgHandler()

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