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DosBeep

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To produce a beep from the speaker DosBeep is called with the frequency and the length of the beep as arguments.

Syntax

DosBeep( ulFrequency, ulDuration )

Parameters

ULONG ulFrequency (input): The frequency in Hertz (Hz) of the beep to be generated. In the range of 0x25 to 0x7FFF (37 to 32767).
ULONG ulDuration (input): The duration of the beep to be generated. In milliseconds.

Returns

APIRET rc

0 NO_ERROR
395 ERROR_INVALID_FREQUENCY

Include Info

#define INCL_DOSPROCESS
#include <os2.h>

Sample Code

#define INCL_DOSPROCESS
#include <os2.h>
#include <stdio.h>    /* For printf */

if(DosBeep(400, 300)) /* Beep a 400 Hz tone for 0.3 seconds */
{
    printf("Invalid frequency to DosBeep()\n"); /* In case of error, should not */
}                                               /* be called now when the       */
                                                /* frequency is 400 Hz          */

See Also

Retrieved from "https://www.edm2.com/index.php?title=DosBeep&oldid=82609"

Dos