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HidP_SetUsageValue (Windows Embedded CE 6.0)

  • Article

1/6/2010

This function sets a HID control value in a specified HID report.

Syntax

NTSTATUS HidP_SetUsageValue(
  HIDP_REPORT_TYPE ReportType,
  USAGE UsagePage,
  USHORT LinkCollection,
  USAGE Usage,
  ULONG UsageValue,
  PHIDP_PREPARSED_DATA PreparsedData,
  PCHAR Report,
  ULONG ReportLength
);

Parameters

  • ReportType
    [in] HIDP_REPORT_TYPE enumerator value that indicates the type of HID report located at Report.
  • UsagePage
    [in] Usage page of a usage.
  • LinkCollection
    [in] Link collection that contains the usage. If LinkCollection is nonzero, the function only sets the usage, if one exists, in this link collection. If LinkCollection is zero, the function sets the first usage it finds in the top-level collection associated with PreparsedData.
  • Usage
    [in] Usage.
  • UsageValue
    [in] Usage value.
  • PreparsedData
    [in] Pointer to a top-level's preparsed data.
  • Report
    [in, out] On input, an initialized HID report. On output, a pointer to a HID report.
  • ReportLength
    [in] Size, in bytes, of the HID report located at Report, which must be equal to the report length for the specified report type that HidP_GetCaps returns in a collection's HIDP_CAPS structure.

Return Value

The following table shows the possible return values.

Value Description

HIDP_STATUS_SUCCESS

The function has successfully set the usage value.

HIDP_STATUS_INCOMPATIBLE_REPORT_ID

Usage does not exist in the specified report, but it does exist in a different report of the specified type.

HIDP_STATUS_INVALID_PREPARSED_DATA

Preparsed data is not valid.

HIDP_STATUS_REPORT_DOES_NOT_EXIST

No reports of the specified type exist.

HIDP_STATUS_USAGE_NOT_FOUND

Report contains a requested usage that is not in any report supported by the top-level collection.

HIDP_STATUS_INVALID_REPORT_LENGTH

Report length is not valid.

HIDP_STATUS_INVALID_REPORT_TYPE

Specified report type is not valid.

Remarks

The terms button and usage are used synonymously.

HidP_SetUsageValue does not sign the value. A HID client must sign the value at the position provided in the HIDP_VALUE_CAPS structure for this value, or call HidP_SetScaledUsageValue.

Requirements

Header hidpi.h
Library Hidparse_lib.lib
Windows Embedded CE Windows CE .NET 4.2 and later

See Also

Reference

HID Parser Functions
HIDP_CAPS
HidP_GetCaps
HIDP_REPORT_TYPE
HidP_SetScaledUsageValue
HIDP_VALUE_CAPS