| Table 1 Windows’ HID API functions
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| API function
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Documentation
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Use in HID communication
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| HidD_GetHidGuid
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Windows 98/2000 DDK
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Returns the GUID
associated with HIDs
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| SetupDiGetClassDevs
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Windows NT/2000 DDK and
NT/2000 Platform SDK
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Returns an array of structurescontaining information about all installed HIDs
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| SetupDiEnumDeviceInterfaces
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Windows NT/2000 DDK
and
NT/2000 Platform SDK
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Returns a pointer to a structure that identifies an interface in the array returned by SetupDiGetClassDevs
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| SetupDiGetDeviceInterfaceDetail
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Windows NT/2000 DDK and
NT/2000 Platform SDK
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Returns a device pathname for a specified device interface
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| CreateFile
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Windows Platform SDK
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Opens a handle to a HID using the pathname returned by SetupDiGetDevice-InterfaceDetail
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| HidD_GetAttributes
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Windows 98/2000 DDK
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Returns the Vendor ID,
Product ID, and Version for a specified HID
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| HidD_GetPreparsedData
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Windows 98/2000 DDK
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Returns a handle to a buffer with information about a device’s capabilities
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| HidD_GetCaps
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Windows 98/2000 DDK
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Returns a structure describing a device’s capabilities
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| HidD_GetValueCaps
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Windows 98/2000 DDK
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Returns a structure describing the values in a device port
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| HidD_GetButtonCaps
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Windows 98/2000 DDK
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Returns a structure describing buttons in a device report
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| HidD_GetFeature
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Windows 98/2000 DDK
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Reads a feature report from a specified HID
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| HidD_SetFeature
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Windows 98/2000 DDK
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Sends a feature report to a specified HID
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| ReadFile
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Windows Platform SDK
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Reads in input report from a specified HID
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| WriteFile
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Windows Platform SDK
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Sends out output report to a specified HID
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| HidP_SetButtons
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Windows 98/2000 DDK
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Sets the button data in a report
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