HPUX BackgdErr[3]

 Tk_BackgroundError(3)               Tk                Tk_BackgroundError(3)

 Tk Library Procedures                                 Tk Library Procedures





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 NAME
      Tk_BackgroundError - report Tcl  error  that  occurred  in  background
      processing

 SYNOPSIS
      #include <tk.h>

      Tk_BackgroundError(interp)

 ARGUMENTS
      Tcl_Interp   *interp   (in)       Interpreter  in  which   the   error
                                       occurred.
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 DESCRIPTION
      This procedure is typically invoked when a  Tcl  error  occurs  during
      ``background  processing'' such as executing a Tcl command in response
      to a button press or  menu  entry  invocation.   When  such  an  error
      occurs,  the  error condition is reported to Tk or to a widget or some
      other C code, and there is not usually any obvious way for  that  code
      to  report  the  error  to  the  user.   In these cases the code calls
      Tk_BackgroundError with an interp argument identifying the interpreter
      in  which  the  error occurred.  Tk_BackgroundError attempts to invoke
      the tkerror Tcl command to report the error in an application-specific
      fashion.  If no tkerror command exists, or if it returns with an error
      condition,  then  Tk_BackgroundError  reports  the  error  itself   by
      printing a message on the standard error file.


 KEYWORDS
      background, error, tkerror


















                                    - 1 -        Formatted:  August 11, 1996