HIDP_CAPS

  • Article

This structure contains information about a top-level collection's capability.

typedef struct _HIDP_CAPS {
  USAGE Usage;
  USAGE UsagePage;
  USHORT InputReportByteLength;
  USHORT OutputReportByteLength;
  USHORT FeatureReportByteLength;
  USHORT Reserved[17];
  USHORT NumberLinkCollectionNodes;
  USHORT NumberInputButtonCaps;
  USHORT NumberInputValueCaps;
  USHORT NumberInputDataIndices;
  USHORT NumberOutputButtonCaps;
  USHORT NumberOutputValueCaps;
  USHORT NumberOutputDataIndices;
  USHORT NumberFeatureButtonCaps;
  USHORT NumberFeatureValueCaps;
  USHORT NumberFeatureDataIndices;
} HIDP_CAPS, * PHIDP_CAPS;

Members

  • Usage
    Top-level collection's usage identifier.
  • UsagePage
    Top-level collection's usage page.
  • InputReportByteLength
    Maximum size, in bytes, of the input reports, including the report identifier, if report identifiers are used, which is added to the beginning of the report data.
  • OutputReportByteLength
    Maximum size, in bytes, of all the output reports, including the report identifier, if report identifiers are used, which is added to the beginning of the report data.
  • FeatureReportByteLength
    Maximum length, in bytes, of all the feature reports, including the report identifier, if report identifiers are used, which is added to the beginning of the report data.
  • Reserved
    Reserved for internal system use.
  • NumberLinkCollectionNodes
    Number of HIDP_LINK_COLLECTION_NODE structures that are returned for this top-level collection by HidP_GetLinkCollectionNodes.
  • NumberInputButtonCaps
    Number of input HIDP_BUTTON_CAPS structures that HidP_GetButtonCaps returns.
  • NumberInputValueCaps
    Number of input HIDP_VALUE_CAPS structures that HidP_GetValueCaps returns.
  • NumberInputDataIndices
    Number of data indexes assigned to buttons and values in all input reports.
  • NumberOutputButtonCaps
    Number of output HIDP_BUTTON_CAPS structures that HidP_GetButtonCaps returns.
  • NumberOutputValueCaps
    Number of output HIDP_VALUE_CAPS structures that HidP_GetValueCaps returns.
  • NumberOutputDataIndices
    Number of data indexes assigned to buttons and values in all output reports.
  • NumberFeatureButtonCaps
    Total number of feature HIDP_BUTTONS_CAPS structures that HidP_GetButtonCaps returns
  • NumberFeatureValueCaps
    Total number of feature HIDP_VALUE_CAPS structures that HidP_GetValueCaps returns.
  • NumberFeatureDataIndices
    Number of data indexes assigned to buttons and values in all feature reports.

Remarks

Callers of the HID class support functions use the information provided in this structure when a called function requires, as input, the size of a report type, the number of link collection nodes, the number of control capabilities, or the number of data indexes.

Requirements

OS Versions: Windows CE .NET 4.2 and later.
Header: Hidpi.h.

See Also

HID Drivers | HIDP_BUTTON_CAPS | HidP_GetCaps | HidP_GetButtonCaps | HidP_GetLinkCollectionNodes | HidP_GetSpecificButtonCaps | HidP_GetSpecificValueCaps | HidP_GetValueCaps | HIDP_LINK_COLLECTION_NODE | HIDP_VALUE_CAPS

 Last updated on Tuesday, May 18, 2004

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