DOCERR: BEEPQQ and SLEEPQQ Deal in Milliseconds and Hz

 Last reviewed: July 20, 1995
Article ID: Q104945
The information in this article applies to:
  • Microsoft FORTRAN PowerStation for MS-DOS, versions 1.0 and 1.0a

SYMPTOMS

The Microsoft FORTRAN PowerStation "Language Guide" describes the BEEPQQ subroutine on page 214 as follows: 

   BEEPQQ(duration, frequency)
      duration
         (Integer*4; input)   Length of the beep in microseconds.
      frequency
         (Integer*4; input)   Frequency of the tone in KHz.
The documentation on SLEEPQQ on page 496 is as follows: 

   SLEEPQQ(duration)
      duration
         (Integer*4; input)   The number of microseconds to sleep (delay
                              program execution).
The above information is incorrect. The arguments for BEEPQQ are in the wrong order. The duration should be in milliseconds and the frequency in hertz (Hz). The online help for these two run-time subroutines is correct.

RESOLUTION

Make the following modifications on page 214 of your documentation: 

   BEEPQQ(frequency, duration)
      frequency
         (Integer*4; input)    Frequency of the tone in Hz.
      duration
         (Integer*4; input)    Length of the beep in milliseconds.

   Remarks
      BEEPQQ does not return before the sound terminates.
Similarly, page 496 should be modified to reflect the following: 

   SLEEPQQ(duration)
      duration
         (Integer*4; input)    The number of milliseconds to sleep (delay
                               program execution).

MORE INFORMATION

The sample code produces a low, 1-second tone and then sleeps for 1 second.

Sample Code

C No compiler options required 

       include 'flib.fi'
       include 'flib.fd'
       print *, 1
       call beepqq(262,1000)
       print *, 2
       call sleepqq(1000)
       print *, 3
       end

Additional reference words: 1.00 1.00a
KBCategory: kbprg kbdocerr
KBSubcategory: FORTLngIss

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Last reviewed: July 20, 1995
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