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74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
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/* $Id: error.cpp,v 1.1 2002/07/26 00:23:13 robertk Exp $
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*/
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/*
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS OS/2 sub system
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* FILE: dll/process.cpp
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* PURPOSE: Kernelservices for OS/2 apps
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* PROGRAMMER: Robert K. nonvolatil@yahoo.de
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* REVISION HISTORY:
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* 13-03-2002 Created
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* 25-07-2002 Work to make it compile
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*/
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#define INCL_DOSPROCESS
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#define INCL_DOSERRORS
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#include "ros2.h"
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// we need the extra definitions of this file
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namespace NT {
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#include <ddk/ntddbeep.h>
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}
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APIRET STDCALL DosBeep(ULONG freq, ULONG dur)
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{
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NT::BEEP_SET_PARAMETERS BeepSetParameters;
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NT::HANDLE hBeep;
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NT::IO_STATUS_BLOCK ComplStatus;
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NT::UNICODE_STRING unistr;
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NT::NTSTATUS stat;
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NT::OBJECT_ATTRIBUTES oa = {sizeof oa, 0, &unistr, NT::OBJ_CASE_INSENSITIVE, 0, 0};
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// init String still bevore use.
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NT::RtlInitUnicodeString( &unistr, L"\\\\.\\Beep" );
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if( freq<0x25 || freq>0x7FFF )
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return ERROR_INVALID_FREQUENCY; //395; //
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/* Set beep data */
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BeepSetParameters.Frequency = freq;
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BeepSetParameters.Duration = dur;
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/* open the beep dirver */
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stat = NT::ZwOpenFile( &hBeep,
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FILE_READ_DATA | FILE_WRITE_DATA,
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&oa,
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&ComplStatus,
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0, // no sharing
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FILE_OPEN );
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if (!NT_SUCCESS(stat))
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{
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return ERROR_NOT_READY;
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}
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/* actually beep */
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NT::ZwDeviceIoControlFile(hBeep, 0, // Event
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0, // APC-routine
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0, // UserAPCContext
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&ComplStatus, IOCTL_BEEP_SET,
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&BeepSetParameters,
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sizeof(NT::BEEP_SET_PARAMETERS),
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NULL,
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0 );
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NT::ZwClose(hBeep);
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return NO_ERROR;
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}
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/* EOF */
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