StorageFile.OpenAsync 方法

定義

命名空間:

Windows.Storage

多載

OpenAsync(FileAccessMode, StorageOpenOptions)	開啟具有指定檔案上指定選項的隨機存取資料流程。
OpenAsync(FileAccessMode)	開啟具有指定檔案上指定選項的隨機存取資料流程。

OpenAsync(FileAccessMode, StorageOpenOptions)

開啟具有指定檔案上指定選項的隨機存取資料流程。

public:
 virtual IAsyncOperation<IRandomAccessStream ^> ^ OpenAsync(FileAccessMode accessMode, StorageOpenOptions options) = OpenAsync;

/// [Windows.Foundation.Metadata.Overload("OpenWithOptionsAsync")]
/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<IRandomAccessStream> OpenAsync(FileAccessMode const& accessMode, StorageOpenOptions const& options);

[Windows.Foundation.Metadata.Overload("OpenWithOptionsAsync")]
[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<IRandomAccessStream> OpenAsync(FileAccessMode accessMode, StorageOpenOptions options);

function openAsync(accessMode, options)

Public Function OpenAsync (accessMode As FileAccessMode, options As StorageOpenOptions) As IAsyncOperation(Of IRandomAccessStream)

參數

accessMode

FileAccessMode

其中一個列舉值，指定允許的存取類型。

options

StorageOpenOptions

列舉值的位元組合，指定開啟資料流程的選項。

傳回

IAsyncOperation<IRandomAccessStream>

當這個方法完成時，它會傳回 IRandomAccessStream ，其中包含要求的隨機存取資料流程。

實作

OpenAsync(FileAccessMode, StorageOpenOptions)

屬性

OverloadAttribute RemoteAsyncAttribute

另請參閱

• OpenAsync(FileAccessMode)

OpenAsync(FileAccessMode)

開啟具有指定檔案上指定選項的隨機存取資料流程。

public:
 virtual IAsyncOperation<IRandomAccessStream ^> ^ OpenAsync(FileAccessMode accessMode) = OpenAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<IRandomAccessStream> OpenAsync(FileAccessMode const& accessMode);

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<IRandomAccessStream> OpenAsync(FileAccessMode accessMode);

function openAsync(accessMode)

Public Function OpenAsync (accessMode As FileAccessMode) As IAsyncOperation(Of IRandomAccessStream)

參數

accessMode

FileAccessMode

其中一個列舉值，指定允許的存取類型。

傳回

IAsyncOperation<IRandomAccessStream>

當這個方法完成時，它會傳回 IRandomAccessStream ，其中包含要求的隨機存取資料流程。

實作

OpenAsync(FileAccessMode)

屬性

RemoteAsyncAttribute

另請參閱

• OpenAsync(FileAccessMode, StorageOpenOptions)