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.NET Framework Class Library
BinaryReaderRead7BitEncodedInt Method

Reads in a 32-bit integer in compressed format.

Namespace:   System.IO
Assembly:  mscorlib (in mscorlib.dll)
Protected Friend Function Read7BitEncodedInt As [%$TOPIC/dybh7a76_en-us_VS_110_1_0_0_0_0%]
protected internal [%$TOPIC/dybh7a76_en-us_VS_110_1_0_1_0_0%] Read7BitEncodedInt()
protected public:
[%$TOPIC/dybh7a76_en-us_VS_110_1_0_2_0_0%] Read7BitEncodedInt()
member Read7BitEncodedInt : unit -> [%$TOPIC/dybh7a76_en-us_VS_110_1_0_3_0_0%]

Return Value

Type: SystemInt32
A 32-bit integer in compressed format.

The end of the stream is reached.


The stream is closed.


An I/O error occurs.


The stream is corrupted.


BinaryReader does not restore the file position after an unsuccessful read.

If the integer will fit in seven bits, the integer takes only one byte of space. The integer is expected to have been written through BinaryWriterWrite7BitEncodedInt.

For a list of common I/O tasks, see Common I/O Tasks.

Version Information

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.