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

   1 /* $Id$
   2  *
   3  * reactos/lib/kernel32/misc/error.c
   4  *
   5  */
   6
   7 #include <k32.h>
   8
   9 #define NDEBUG
  10 #include "../include/debug.h"
  11
  12
  13 /*
  14  * @implemented
  15  */
  16 VOID
  17 STDCALL
  18 SetLastError (
  19         DWORD   dwErrorCode
  20         )
  21 {
  22         NtCurrentTeb ()->LastErrorValue = (ULONG) dwErrorCode;
  23 }
  24
  25
  26 /*
  27  * @implemented
  28  */
  29 DWORD
  30 STDCALL
  31 GetLastError (VOID)
  32 {
  33         return (DWORD) (NtCurrentTeb ()->LastErrorValue);
  34 }
  35
  36
  37 /*
  38  * @implemented
  39  */
  40 BOOL
  41 STDCALL
  42 Beep (DWORD dwFreq, DWORD dwDuration)
  43 {
  44     HANDLE hBeep;
  45     UNICODE_STRING BeepDevice;
  46     OBJECT_ATTRIBUTES ObjectAttributes;
  47     IO_STATUS_BLOCK IoStatusBlock;
  48     BEEP_SET_PARAMETERS BeepSetParameters;
  49     NTSTATUS Status;
  50
  51     /* check the parameters */
  52     if ((dwFreq >= 0x25 && dwFreq <= 0x7FFF) ||
  53         (dwFreq == 0x0 && dwDuration == 0x0))
  54     {
  55         /* open the device */
  56         RtlInitUnicodeString(&BeepDevice,
  57                              L"\\Device\\Beep");
  58
  59         InitializeObjectAttributes(&ObjectAttributes,
  60                                    &BeepDevice,
  61                                    0,
  62                                    NULL,
  63                                    NULL);
  64
  65         Status = NtCreateFile(&hBeep,
  66                               FILE_READ_DATA | FILE_WRITE_DATA,
  67                               &ObjectAttributes,
  68                               &IoStatusBlock,
  69                               NULL,
  70                               0,
  71                               FILE_SHARE_READ | FILE_SHARE_WRITE,
  72                               FILE_OPEN_IF,
  73                               0,
  74                               NULL,
  75                               0);
  76         if (NT_SUCCESS(Status))
  77         {
  78             /* Set beep data */
  79             BeepSetParameters.Frequency = dwFreq;
  80             BeepSetParameters.Duration = dwDuration;
  81
  82             Status = NtDeviceIoControlFile(hBeep,
  83                                            NULL,
  84                                            NULL,
  85                                            NULL,
  86                                            &IoStatusBlock,
  87                                            IOCTL_BEEP_SET,
  88                                            &BeepSetParameters,
  89                                            sizeof(BEEP_SET_PARAMETERS),
  90                                            NULL,
  91                                            0);
  92
  93             /* do an alertable wait if necessary */
  94             if (NT_SUCCESS(Status) &&
  95                 (dwFreq != 0x0 || dwDuration != 0x0) && dwDuration != (DWORD)-1)
  96             {
  97                 SleepEx(dwDuration,
  98                         TRUE);
  99             }
 100
 101             NtClose(hBeep);
 102         }
 103     }
 104     else
 105         Status = STATUS_INVALID_PARAMETER;
 106
 107     if (!NT_SUCCESS(Status))
 108     {
 109         SetLastErrorByStatus (Status);
 110         return FALSE;
 111     }
 112
 113     return TRUE;
 114 }
 115
 116 /* EOF */