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The Future Event Driven World: Global Epidemic Warning Systems
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XtAppSetWarningMsgHandler() XtAppSetWarningMsgHandler() Name XtAppSetWarningMsgHandler - set the high-level warning handler. Synopsis XtErrorMsgHandler XtAppSetWarningMsgHandler(app_context, msg_handler) XtAppContext app_context; XtErrorMsgHandler msg_handler; Inputs app_context Specifies the application context. msg_handler Specifies the new high-level warning handler. Returns A pointer to the previously installed high-level warning handler. Description XtAppSetWarningMsgHandler() registers the procedure msg_handler in app_context as the procedure to be invoked by XtAppWarningMsg(). It returns a pointer to the previously installed high-level warning handler. The default high-level warning handler provided by the Intrinsics is named _XtDefaultWarningMsg(). It looks up a message in the error resource database (see XtAppGetErrorDatabaseText()), substitutes the supplied parameters into the message, and calls XtWarning(). See XtWarningMsgHandler(2) for an explanation of how to write a customized high-level warning handler. msg_handler should generally invoke the low-level warning handler to display the message. Usage Note that application-context-specific error and warning handling is not implemented 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), XtAppSetErrorMsgHandler(1), XtAppSetWarningHan- dler(1), XtAppWarning(1), XtAppWarningMsg(1), XtErrorHandler(2), XtErrorMsgHandler(2). Xt - Error Handling XtAppSetWarningMsgHandler()
