45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*++ BUILD Version: 0001 // Increment this if a change has global effects
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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ntddtime.h
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Abstract:
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This include file defines all constants and types for
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accessing an NT wave device.
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Author:
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Robin Speed (RobinSp) 30-Jan-92
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Revision History:
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--*/
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#define FILE_DEVICE_TIME 0x00000026
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//
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// Timer IOCTLs
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//
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#define IOCTL_TIMER_SET_TIMER_EVENT CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0001, METHOD_BUFFERED, FILE_WRITE_DATA)
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#define IOCTL_TIMER_GET_TIME CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0002, METHOD_NEITHER, FILE_WRITE_DATA)
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#define IOCTL_TIMER_GET_DEV_CAPS CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0003, METHOD_BUFFERED, FILE_WRITE_DATA)
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#define IOCTL_TIMER_BEGIN_MIN_PERIOD CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0004, METHOD_NEITHER, FILE_WRITE_DATA)
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#define IOCTL_TIMER_END_MIN_PERIOD CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0005, METHOD_BUFFERED, FILE_WRITE_DATA)
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#define IOCTL_TIMER_RESET CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0006, METHOD_BUFFERED, FILE_WRITE_DATA)
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#define IOCTL_TIMER_RESET_EVENT CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0007, METHOD_NEITHER, FILE_WRITE_DATA)
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#define DD_TIMER_DEVICE_NAME_U L"\\Device\\Timer"
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#define IO_TIMER_INCREMENT 8
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typedef struct {
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ULONG EventTime; // Time in ms for event
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ULONG EventId; // Id (cannot be 0)
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LARGE_INTEGER EventTicks; // Driver use (not seen by caller)
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} TIMER_DD_SET_EVENT, *PTIMER_DD_SET_EVENT;
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