• Article

Marshal.ReadByte Method (IntPtr, Int32)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

This type can be used only by trusted applications. If you try to use its members in a partial-trust application, your code will throw a MethodAccessException exception. This type is security-critical, which restricts its use.

[SECURITY CRITICAL]

Reads a single byte at a given offset (or index) from an unmanaged pointer.

Namespace:  System.Runtime.InteropServices
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
<SecurityCriticalAttribute> _
Public Shared Function ReadByte ( _
    ptr As IntPtr, _
    ofs As Integer _
) As Byte

[SecurityCriticalAttribute]
public static byte ReadByte(
    IntPtr ptr,
    int ofs
)

Parameters

  • ptr
    Type: System.IntPtr
    The base address in unmanaged memory from which to read.
  • ofs
    Type: System.Int32
    An additional byte offset, added to the ptr parameter before reading.

Return Value

Type: System.Byte
The byte read from the ptr parameter.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.