The SetupDiGetDevicePropertyKeys function retrieves an array of the device property keys that represent the device properties that are set for a device instance.
WINSETUPAPI BOOL SetupDiGetDevicePropertyKeys( HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA DeviceInfoData, DEVPROPKEY *PropertyKeyArray, DWORD PropertyKeyCount, PDWORD RequiredPropertyKeyCount, DWORD Flags );
A handle to a device information set. This device information set contains the device instance for which this function retrieves an array of device property keys. The property keys represent the device properties that are set for the device instance.
A pointer to an SP_DEVINFO_DATA structure that represents the device instance for which to retrieve the requested array of device property keys.
A pointer to a buffer that receives an array of DEVPROPKEY-typed values, where each value is a device property key that represents a device property that is set for the device instance. The pointer is optional and can be NULL. For more information, see the Remarks section later in this topic.
The size, in DEVPROPKEY-typed values, of the PropertyKeyArray buffer. If PropertyKeyArray is set to NULL, PropertyKeyCount must be set to zero.
A pointer to a DWORD-typed variable that receives the number of requested device property keys. The pointer is optional and can be set to NULL.
This parameter must be set to zero.
SetupDiGetDevicePropertyKeys returns TRUE if it is successful. Otherwise, it returns FALSE, and the logged error can be retrieved by calling GetLastError.
The following table includes some of the more common error codes that this function might log.
||The value of Flags is not zero.|
||The device information set that is specified by DevInfoSet is not valid.|
||A supplied parameter is not valid. One possibility is that the device information element is not valid.|
||An internal data value is not valid.|
||A user buffer is not valid. One possibility is that PropertyKeyArray is NULL and PropertKeyCount is not zero.|
||The device instance that is specified by DevInfoData does not exist.|
||The PropertyKeyArray buffer is too small to hold all the requested property keys.|
||There was not enough system memory available to complete the operation.|
SetupDiGetDevicePropertyKeys is part of the unified device property model.
If the ProperKeyArray buffer is not large enough to hold all the requested property keys, SetupDiGetDevicePropertyKeys does not retrieve any property keys and returns ERROR_INSUFFICIENT_BUFFER. If the caller supplied a RequiredPropertyKeyCount pointer, SetupDiGetDevicePropertyKeys sets the value of *RequiredPropertyKeyCount to the required size, in DEVPROPKEY-typed values, of the PropertyKeyArray buffer.
|Windows version||Available in Windows Vista and later versions of Windows.|
|Target Platform||DesktopFor universal, call CM_Get_DevNode_Property_Keys|
|Header||setupapi.h (include Setupapi.h)|