HIDP_CAPS
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8/28/2008
This structure contains information about a top-level collection's capability.
Syntax
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
| Header | hidpi.h |
| Windows Embedded CE | Windows CE .NET 4.2 and later |
See Also
Reference
HIDP_BUTTON_CAPS
HidP_GetCaps
HidP_GetButtonCaps
HidP_GetLinkCollectionNodes
HidP_GetSpecificButtonCaps
HidP_GetSpecificValueCaps
HidP_GetValueCaps
HIDP_LINK_COLLECTION_NODE
HIDP_VALUE_CAPS