ReadIntPtr Method (Object, Int32)

Marshal.ReadIntPtr Method (Object, Int32)

 

Reads a processor native sized integer from unmanaged memory.

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

[SecurityCriticalAttribute]
public static IntPtr ReadIntPtr(
	object ptr,
	int ofs
)

Parameters

ptr
Type: System.Object

The base address in unmanaged memory of the source object.

ofs
Type: System.Int32

An additional byte offset, which is added to the ptr parameter before reading.

Return Value

Type: System.IntPtr

The integer read from unmanaged memory at the given offset.

Exception Condition
AccessViolationException

Base address (ptr) plus offset byte (ofs) produces a null or invalid address.

ArgumentException

ptr is an ArrayWithOffset object. This method does not accept ArrayWithOffset parameters.

ReadIntPtr 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 reading its element values.

Reading from unaligned memory locations is supported.

SecurityCriticalAttribute

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

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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