1 /* 2 * ntddbeep.h 3 * 4 * This file is part of the mingw-w64 runtime package. 5 * No warranty is given; refer to the file DISCLAIMER within this package. 6 * 7 * Initial contributor is Casper S. Hornstrup <chorns (at) users.sourceforge.net> 8 * Extended by Kai Tietz 9 */ 10 11 #ifndef _NTDDBEEP_ 12 #define _NTDDBEEP_ 13 14 #include <winapifamily.h> 15 16 #if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP) 17 18 #ifdef __cplusplus 19 extern "C" { 20 #endif 21 22 #define DD_BEEP_DEVICE_NAME "\\Device\\Beep" 23 #define DD_BEEP_DEVICE_NAME_U L"\\Device\\Beep" 24 #define BEEP_FREQUENCY_MINIMUM 0x25 25 #define BEEP_FREQUENCY_MAXIMUM 0x7fff 26 #define IOCTL_BEEP_SET CTL_CODE (FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS) 27 28 typedef struct _BEEP_SET_PARAMETERS { 29 ULONG Frequency; 30 ULONG Duration; 31 } BEEP_SET_PARAMETERS,*PBEEP_SET_PARAMETERS; 32 33 #ifdef __cplusplus 34 } 35 #endif 36 37 #endif 38 #endif 39
