• Article

Marshal.StructureToPtr Method

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]

Marshals data from a managed object to an unmanaged block of memory.

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

Syntax

'Declaration
<ComVisibleAttribute(True)> _
<SecurityCriticalAttribute> _
Public Shared Sub StructureToPtr ( _
    structure As Object, _
    ptr As IntPtr, _
    fDeleteOld As Boolean _
)

[ComVisibleAttribute(true)]
[SecurityCriticalAttribute]
public static void StructureToPtr(
    Object structure,
    IntPtr ptr,
    bool fDeleteOld
)

Parameters

  • structure
    Type: System.Object
    A managed object holding the data to be marshaled. This object must be an instance of a formatted class.
  • ptr
    Type: System.IntPtr
    A pointer to an unmanaged block of memory, which must be allocated before this method is called.
  • fDeleteOld
    Type: System.Boolean
    true to free the memory that the ptr parameter points to, before this method executes. Note that passing false can lead to a memory leak.

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.