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GetStatus (Windows CE 5.0)

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This function sends a GET_STATUS request to a universal serial bus (USB) device.

DWORD GetStatus(  LPCUSB_FUNCS pUsbFuncs,  HANDLE hUsbDevice,  LPTRANSFER_NOTIFY_ROUTINE NotifyRoutine,  PVOID NotifyContext,  DWORD dwFlags,  UCHAR bIndex,  LPWORD lpwStatus,  DWORD dwTimeout);

Parameters

  • pUsbFuncs
    [in] Pointer to a USB_FUNCS structure.
  • hUsbDevice
    [in] Handle to a USB device.
  • NotifyRoutine
    [in] Pointer to a callback function to signal a completion event. This is of type LPTRANSFER_NOTIFY_ROUTINE, which might be NULL.
  • NotifyContext
    [in] Handle to a BulkXXX completion event.
  • dwFlags
    [in] Value of USB_NO_WAIT or zero (0), and one of the values from the following table.
    Value Description
    USB_SEND_TO_DEVICE Request for status of the device.
    USB_SEND_TO_INTERFACE Request for status of the interface.
    USB_SEND_TO_ENDPOINT Request for status of the endpoint.
  • bIndex
    [in] Value of zero (0) for DEVICE, or interface or endpoint number.
  • lpwStatus
    [out] Device's status.
  • dwTimeout
    [in] Timeout in milliseconds (ms).

Return Values

TRUE indicates success. FALSE indicates failure. To get extended error information, call GetLastError.

Remarks

This function initiates a control transfer to a USB device requesting device, interface, or endpoint status.

Synchronous calls to GetStatus can negatively affect performance.

Requirements

OS Versions: Windows CE 2.10 and later.
Header: Usbclient.h.

See Also

AbortTransfer | GetTransferStatus | LPIS_TRANSFER_COMPLETE | LPTRANSFER_NOTIFY_ROUTINE | USB_FUNCS

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