REQERR(3I) - Linux man page online | Library functions
Handle request errors.
15 June 1987
ReqErr(3I) InterViews Reference Manual ReqErr(3I)
InterViews 15 June 1987 ReqErr(3I)
NAMEReqErr - handle request errors
DESCRIPTIONSome 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 OPERATIONSReqErr* 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.
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