reactos/dll/win32/kernel32/misc/error.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS system libraries
   5  * FILE:            dll/win32/kernel32/misc/error.c
   6  * PURPOSE:         Environment functions
   7  * PROGRAMMER:      Emanuele Aliberti
   8  *                  Thomas Weidenmueller
   9  * UPDATE HISTORY:
  10  *                  Created 05/10/98
  11  */
  12
  13
  14 #include <k32.h>
  15
  16 #define NDEBUG
  17 #include <debug.h>
  18
  19
  20 /*
  21  * @implemented
  22  */
  23 BOOL
  24 WINAPI
  25 Beep (DWORD dwFreq, DWORD dwDuration)
  26 {
  27     HANDLE hBeep;
  28     UNICODE_STRING BeepDevice;
  29     OBJECT_ATTRIBUTES ObjectAttributes;
  30     IO_STATUS_BLOCK IoStatusBlock;
  31     BEEP_SET_PARAMETERS BeepSetParameters;
  32     NTSTATUS Status;
  33
  34     /* check the parameters */
  35     if ((dwFreq >= 0x25 && dwFreq <= 0x7FFF) ||
  36         (dwFreq == 0x0 && dwDuration == 0x0))
  37     {
  38         /* open the device */
  39         RtlInitUnicodeString(&BeepDevice,
  40                              L"\\Device\\Beep");
  41
  42         InitializeObjectAttributes(&ObjectAttributes,
  43                                    &BeepDevice,
  44                                    0,
  45                                    NULL,
  46                                    NULL);
  47
  48         Status = NtCreateFile(&hBeep,
  49                               FILE_READ_DATA | FILE_WRITE_DATA,
  50                               &ObjectAttributes,
  51                               &IoStatusBlock,
  52                               NULL,
  53                               0,
  54                               FILE_SHARE_READ | FILE_SHARE_WRITE,
  55                               FILE_OPEN_IF,
  56                               0,
  57                               NULL,
  58                               0);
  59         if (NT_SUCCESS(Status))
  60         {
  61             /* Set beep data */
  62             BeepSetParameters.Frequency = dwFreq;
  63             BeepSetParameters.Duration = dwDuration;
  64
  65             Status = NtDeviceIoControlFile(hBeep,
  66                                            NULL,
  67                                            NULL,
  68                                            NULL,
  69                                            &IoStatusBlock,
  70                                            IOCTL_BEEP_SET,
  71                                            &BeepSetParameters,
  72                                            sizeof(BEEP_SET_PARAMETERS),
  73                                            NULL,
  74                                            0);
  75
  76             /* do an alertable wait if necessary */
  77             if (NT_SUCCESS(Status) &&
  78                 (dwFreq != 0x0 || dwDuration != 0x0) && dwDuration != MAXDWORD)
  79             {
  80                 SleepEx(dwDuration,
  81                         TRUE);
  82             }
  83
  84             NtClose(hBeep);
  85         }
  86     }
  87     else
  88         Status = STATUS_INVALID_PARAMETER;
  89
  90     if (!NT_SUCCESS(Status))
  91     {
  92         SetLastErrorByStatus (Status);
  93         return FALSE;
  94     }
  95
  96     return TRUE;
  97 }
  98
  99 /* EOF */