DosBeep

This call generates sound from the speaker.

Syntax

DosBeep (Frequency, Duration)

Parameters

Frequency (USHORT) - input : Tone in Hertz (cycles per second) in the range 37 through 32767.

Duration (USHORT) - input : Length of the sound in milliseconds.

Return Code

rc (USHORT) - return Return code descriptions are:

0 NO_ERROR

395 ERROR_INVALID_FREQUENCY

Remarks

DosBeep executes synchronously. An application program that invokes DosBeep waits until the specified number of milliseconds expire before it resumes execution.

Example Code

C Binding

#define INCL_DOSPROCESS
USHORT rc = DosBeep(Frequency, Duration);
USHORT Frequency; /* Hertz (Hz) */
USHORT Duration; /* Length of sound */
USHORT rc; /* return code */

This example generates a beep for 1 second (1,000 milliseconds) at a frequency of 1,380.

#define INCL_DOSPROCESS
#define BEEP_FREQUENCY 1380
#define BEEP_DURATION 1000
USHORT rc;
rc = DosBeep(BEEP_FREQUENCY,
BEEP_DURATION);

MASM Binding

EXTRN DosBeep:FAR
INCL_DOSPROCESS EQU 1
PUSH WORD Frequency ;Frequency (in Hertz)
PUSH WORD Duration ;Length of sound (in milliseconds)
CALL DosBeep

Returns WORD

Note

Text based on http://www.edm2.com/index.php/OS2_API:CPI:LEGACY:DosBeep

Family API
DOS	Process Manager	DosBeep DosExit DosSleep DosExecPgm
File Manager	DosChDir DosChgFilePtr DosClose DosDelete DosDupHandle DosMkDir DosMove DosQCurDir DosQCurDisk DosSetFileMode DosOpen DosQFileInfo DosRead DosQFileMode DosQFSInfo DosQVerify DosRmDir DosSelectDisk DosFindClose DosFindFirst DosFindNext DosSetFileInfo DosSetVerify DosWrite DosFileLocks DosSetFHandState DosNewSize DosBufReset DosQFHandState DosSetFSinfo DosShutdown
Memory Manager	DosFreeSeg DosSubAlloc DosSubFree DosSubSet DosAllocHuge DosAllocSeg DosReallocHuge DosReallocSeg DosGetHugeShift DosCreateCSAlias
NLS	DosCaseMap DosGetCtryInfo DosGetDBCSEv DosSetCtryCode DosGetCollate DosGetMessage DosInsMessage DosPutMessage
Date and Time	DosSetDateTime DosGetDateTime
Devices	DosDevConfig DosDevIOCtl DosDevIOCtl2
Signals	DosHoldSignal DosSetSigHandler
Misc	BadDynLink DosGetEnv DosGetMachineMode DosGetVersion DosError DosErrClass DosSetVec
KBD	KbdCharIn KbdFlushBuffer KbdGetStatus KbdSetStatus KbdStringIn KbdPeek
VIO	VioGetBuf VioGetConfig VioGetCurPos VioGetCurType VioGetPhysBuf VioReadCellStr VioReadCharStr VioScrollUp VioScrollDn VioScrollLf VioScrollRt VioScrUnLock VioSetCurPos VioSetCurType VioSetMode VioGetMode VioShowBuf VioWrtCellStr VioWrtCharStr VioWrtCharStrAtt VioWrtNAttr VioWrtNCell VioWrtNChar VioWrtTTY VioScrLock VioPopUp
Tools	BIND
Modules	DOSCALLS.DLL VIOCALLS.DLL KBDCALLS.DLL MSG.DLL
Libraries	API.LIB OS2386.LIB FAPI.LIB DOSCALLS.LIB SUBCALLS.LIB