Marshal.PtrToStringAuto Method (IntPtr, Int32)
Allocates a managed String and copies the specified number of characters from a string stored in unmanaged memory into it.
Assembly: mscorlib (in mscorlib.dll)
- Type: System.IntPtr
For Unicode platforms, the address of the first Unicode character.
For ANSI plaforms, the address of the first ANSI character.
- Type: System.Int32
The number of characters to copy.
Return ValueType: System.String
A managed string that holds a copy of the native string if the value of the ptr parameter is not a null reference (Nothing in Visual Basic); otherwise, this method returns a null reference (Nothing in Visual Basic).
PtrToStringAuto is useful for custom marshaling or when mixing managed and unmanaged code. Because this method creates a copy of the unmanaged string's contents, you must free the original string as appropriate. PtrToStringAuto provides the opposite functionality of Marshal.StringToCoTaskMemAuto and Marshal.StringToHGlobalAuto.
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.
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.