GpioChangeReader.WaitForItemsAsync(Int32) Method
Definition
Important
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Waits for the buffer to fill with at least count number of items, at which point the async action will complete. This action is cancelable.
public:
virtual IAsyncAction ^ WaitForItemsAsync(int count) = WaitForItemsAsync;/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncAction WaitForItemsAsync(int const& count);[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncAction WaitForItemsAsync(int count);function waitForItemsAsync(count)Public Function WaitForItemsAsync (count As Integer) As IAsyncActionParameters
- count
-
Int32
int
The number of items with which the buffer must fill before the async operation completes.
Returns
- Attributes
Remarks
If the pin or change reader is closed while a wait is in progress, the async operation will be cancelled.
The following exceptions can be thrown by this method:
- E_INVALIDARG - count is 0, or count is greater than the buffer's capacity.
- HRESULT_FROM_WIN32(ERROR_INVALID_HANDLE) - The change reader was disposed of the associated pin was closed.
- HRESULT_FROM_WIN32(ERROR_OPERATION_ABORTED) - the async operation was canceled.