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BinaryWriter.Write7BitEncodedInt Method

Writes a 32-bit integer in a compressed format.

[Visual Basic]
Protected Sub Write7BitEncodedInt( _
   ByVal value As Integer _
protected void Write7BitEncodedInt(
 int value
protected: void Write7BitEncodedInt(
 int value
protected function Write7BitEncodedInt(
   value : int


The 32-bit integer to be written.


Exception Type Condition
EndOfStreamException The end of the stream is reached.
ObjectDisposedException The stream is closed.
IOException The stream is closed.


The integer of the value parameter is written out seven bits at a time, starting with the seven least-significant bits. The high bit of a byte indicates whether there are more bytes to be written after this one.

If value will fit in seven bits, it takes only one byte of space. If value will not fit in seven bits, the high bit is set on the first byte and written out. value is then shifted by seven bits and the next byte is written. This process is repeated until the entire integer has been written.

The following table lists examples of other typical or related I/O tasks.

To do this... See the example in this topic...
Create a text file. Writing Text to a File
Write to a text file. Writing Text to a File
Read from a text file. Reading Text from a File
Append text to a file. Opening and Appending to a Log File



Get the size of a file. FileInfo.Length
Get the attributes of a file. File.GetAttributes
Set the attributes of a file. File.SetAttributes
Determine if a file exists. File.Exists
Read from a binary file. Reading and Writing to a Newly Created Data File
Write to a binary file. Reading and Writing to a Newly Created Data File


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

See Also

BinaryWriter Class | BinaryWriter Members | System.IO Namespace | Working with I/O | Reading Text from a File | Writing Text to a File

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