136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
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/*++
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*
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* Component: hidserv.dll
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* File: hid.h
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* Purpose: header to support hid client capability.
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*
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* Copyright (C) Microsoft Corporation 1997,1998. All rights reserved.
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*
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* WGJ
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--*/
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#ifndef HIDEXE_H
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#define HIDEXE_H
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#include <hidsdi.h>
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#include <setupapi.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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//
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// A structure to hold the steady state data received from the hid device.
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// Each time a read packet is received we fill in this structure.
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// Each time we wish to write to a hid device we fill in this structure.
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// This structure is here only for convenience. Most real applications will
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// have a more efficient way of moving the hid data to the read, write, and
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// feature routines.
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//
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typedef struct _HID_DATA {
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BOOLEAN IsButtonData;
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UCHAR Reserved;
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USAGE UsagePage; // The usage page for which we are looking.
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USHORT LinkCollection; // hidparse internal index
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USAGE LinkUsage; // the actual logical collection usage
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ULONG Status; // The last status returned from the accessor function
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// when updating this field.
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union {
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struct {
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ULONG MaxUsageLength; // Usages buffer length.
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PUSAGE_AND_PAGE Usages; // list of usages (buttons ``down'' on the device.
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PUSAGE_AND_PAGE PrevUsages; // list of usages previously ``down'' on the device.
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} ButtonData;
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struct {
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USAGE Usage; // The usage describing this value;
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USHORT Reserved;
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ULONG Value;
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LONG ScaledValue;
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ULONG LogicalRange;
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} ValueData;
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};
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} HID_DATA, *PHID_DATA;
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typedef struct _HID_DEVICE {
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struct _HID_DEVICE * pNext;
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HANDLE HidDevice; // A file handle to the hid device.
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PHIDP_PREPARSED_DATA Ppd; // The opaque parser info describing this device
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HIDP_CAPS Caps; // The Capabilities of this hid device.
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HIDD_ATTRIBUTES Attributes;
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// PnP info
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DWORD DevInst; // the devnode
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BOOL Active; // Dead or alive?
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HDEVNOTIFY hNotify; // Device notification handle
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OVERLAPPED Overlap; // used for overlapped read.
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HANDLE ReadEvent; // when io pending occurs
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HANDLE CompletionEvent; // signals read completion.
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BOOL fThreadEnabled;
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DWORD ThreadId;
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HANDLE ThreadHandle;
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PCHAR InputReportBuffer;
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PHID_DATA InputData; // array of hid data structures
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ULONG InputDataLength; // Num elements in this array.
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BOOLEAN Speakers;
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} HID_DEVICE, *PHID_DEVICE;
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// pnp.c
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BOOL
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RebuildHidDeviceList (void);
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BOOL
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StartHidDevice(
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PHID_DEVICE pHidDevice);
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BOOL
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StopHidDevice(
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PHID_DEVICE pHidDevice);
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BOOL
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DestroyHidDeviceList(
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void);
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BOOL
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DestroyDeviceByHandle(
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HANDLE hDevice
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);
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// report.c
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BOOL
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Read (
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PHID_DEVICE HidDevice
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);
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BOOL
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ParseReadReport (
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PHID_DEVICE HidDevice
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);
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BOOL
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Write (
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PHID_DEVICE HidDevice
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);
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BOOL
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SetFeature (
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PHID_DEVICE HidDevice
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);
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BOOL
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GetFeature (
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PHID_DEVICE HidDevice
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);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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