Marshal::WriteIntPtr Method (IntPtr, IntPtr)

.NET Framework (current version)

Writes a processor native sized integer value into unmanaged memory.

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

Syntax

public:
[SecurityCriticalAttribute]
static void WriteIntPtr(
	IntPtr ptr,
	IntPtr val
)

Parameters

ptr: Type: System::IntPtr
The address in unmanaged memory to write to.

val: Type: System::IntPtr
The value to write.

Exceptions

Exception	Condition
AccessViolationException	ptr is not a recognized format. -or- ptr is null. -or- ptr is invalid.

WriteIntPtr enables direct interaction with an unmanaged C-style IntPtr array, eliminating the expense of copying an entire unmanaged array (using Marshal::Copy) to a separate managed array before setting its element values.

Writing to unaligned memory locations is supported.

Examples

The following example demonstrates how to read and write to an unmanaged array using the ReadIntPtr and WriteIntPtr methods.

C++

No code example is currently available or this language may not be supported.

Security

SecurityCriticalAttribute

requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Version Information

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1