qp.hlp (Table of Contents; Topic list)
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SetCBreak Procedure
  Summary Details Example                                  Back
 
  Argument
 
    state    Boolean expression representing the desired state of DOS
             CTRL+BREAK checking
 
  Description
 
    The SetCBreak procedure sets or clears the state of DOS CTRL+BREAK
    checking.
 
    When CTRL+BREAK checking is on, DOS checks for CTRL+BREAK at the
    time of each system call. To turn CTRL+BREAK checking on, pass the
    value True to SetCBreak.
 
    When CTRL+BREAK checking is off, DOS checks for CTRL+BREAK only
    during I/O to or from communication, console, and printer devices.
    To turn CTRL+BREAK checking off, pass the value False.
 
    Use the GetCBreak procedure to get the current state of DOS
    CTRL+BREAK checking.
 
    CTRL+BREAK checking remains in the current state until changed by
    SetCBreak or the DOS command BREAK. It does not change when program
    execution ends.
 
    Setting DOS CTRL+BREAK checking does not change the value in
    CheckBreak, defined in the Crt unit. Changing the value in
    CheckBreak does not affect the state of DOS CTRL+BREAK checking.