IInputStream
IInputStream
IInputStream
IInputStream
Interface
Definition
Represents a sequential stream of bytes to be read.
public : interface IInputStreampublic interface IInputStreamPublic Interface IInputStream// You can use this interface in JavaScript.
- Inheritance
- Attributes
| Device family |
Windows 10 (introduced v10.0.10240.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced v1)
|
Inherited Members
Inherited methods
Methods
ReadAsync(IBuffer, UInt32, InputStreamOptions) ReadAsync(IBuffer, UInt32, InputStreamOptions) ReadAsync(IBuffer, UInt32, InputStreamOptions) ReadAsync(IBuffer, UInt32, InputStreamOptions)
Reads data from the stream asynchronously.
public : IAsyncOperationWithProgress<IBuffer, unsigned int> ReadAsync(IBuffer buffer, unsigned int count, InputStreamOptions options)public IAsyncOperationWithProgress<IBuffer, uint> ReadAsync(IBuffer buffer, UInt32 count, InputStreamOptions options)Public Function ReadAsync(buffer As IBuffer, count As UInt32, options As InputStreamOptions) As IAsyncOperationWithProgress( Of IBuffer, uint )// You can use this method in JavaScript.
A buffer that may be used to return the bytes that are read. The return value contains the buffer that holds the results.
- count
- unsigned int UInt32 UInt32 UInt32
The number of bytes to read that is less than or equal to the Capacity value.
Specifies the type of the asynchronous read operation.
The asynchronous operation.
Remarks
Always read data from the buffer returned in the IAsyncOperationWithProgress(IBuffer, UInt32). Don't assume that the input buffer contains the data. Depending on the implementation, the data that's read might be placed into the input buffer, or it might be returned in a different buffer. For the input buffer, you don't have to implement the IBuffer interface. Instead, you can create an instance of the Buffer class.
Also consider reading a buffer into an IInputStream by using the ReadBuffer method of the DataReader class.