Specifies the resource classCl.
Specifies the default message to useDm.
Specifies the general kind of error.
Specifies the detailed name of the error. or the nonfatal error procedure, which usually returns
Specifies the new fatal error procedure, which should not return.
Specifies the number of values in the parameter list.
Specifies a pointer to a list of values to be stored in the message.
The XtSetErrorMsgHandler function has been superceded by XtAppSetErrorMsgHandler.
The XtSetWarningMsgHandler function has been superceded by XtAppSetWarningMsgHandler.
The XtWarningMsg function has been superceded by XtAppWarningMsg