• Article

Marshal.WriteInt64 Method (IntPtr, Int32, Int64)

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]

Writes a 64-bit signed integer value to unmanaged memory.

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

Syntax

'Declaration
<SecurityCriticalAttribute> _
Public Shared Sub WriteInt64 ( _
    ptr As IntPtr, _
    ofs As Integer, _
    val As Long _
)

[SecurityCriticalAttribute]
public static void WriteInt64(
    IntPtr ptr,
    int ofs,
    long val
)

Parameters

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

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.