::SizeOf Method (Object)
Returns the unmanaged size of an object in bytes.
static int SizeOf(
Parameters structure Type: System ::Object
The object whose size is to be returned.
System ::Int32 The size of the specified object in unmanaged code.
This method accepts an instance of a structure, which can be a reference type or a boxed value type. The layout must be sequential or explicit.
The size returned is the size of the unmanaged object. The unmanaged and managed sizes of an object can differ. For character types, the size is affected by the
value applied to that class. CharSet
You can use the
method to determine how much unmanaged memory to allocate using the SizeOf and AllocHGlobal methods. AllocCoTaskMem
The following example creates a managed structure, transfers it to unmanaged memory, and then transfers it back to managed memory. This example uses the
method to determine how much unmanaged memory to allocate. SizeOf
No code example is currently available or this language may not be supported.
Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Portable Class Library
Supported in: Portable Class Library
.NET for Windows Store apps
Supported in: Windows 8
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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