Marshal.PtrToStringUTF8 Method

Definition

Namespace:

System.Runtime.InteropServices

Assemblies:

netstandard.dll, System.Runtime.InteropServices.dll

Overloads

PtrToStringUTF8(IntPtr)	Allocates a managed String and copies all characters up to the first null character from an unmanaged UTF-8 string into it.
PtrToStringUTF8(IntPtr, Int32)	Allocates a managed String and copies a specified number of bytes from an unmanaged UTF8 string into it.

PtrToStringUTF8(IntPtr)

Source:

Marshal.cs

Allocates a managed String and copies all characters up to the first null character from an unmanaged UTF-8 string into it.

C#

public static string? PtrToStringUTF8(IntPtr ptr);

Parameters

ptr

IntPtr

The address of the first character of the unmanaged string.

Returns

String

A managed string that holds a copy of the unmanaged string if the value of the ptr parameter is not null; otherwise, this method returns null.

Remarks

PtrToStringUTF8 is useful for custom marshaling or for use 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. This method provides the opposite functionality of the Marshal.StringToCoTaskMemUTF8 methods.

See also

• StringToCoTaskMemUTF8(String)

PtrToStringUTF8(IntPtr, Int32)

Source:

Marshal.cs

Allocates a managed String and copies a specified number of bytes from an unmanaged UTF8 string into it.

C#

public static string PtrToStringUTF8(IntPtr ptr, int byteLen);

Parameters

ptr

IntPtr

The address of the first character of the unmanaged string.

byteLen

Int32

The number of bytes to copy.

Returns

String

A managed string that holds a copy of the unmanaged string if the value of the ptr parameter is not null; otherwise, this method returns null.

Remarks

PtrToStringUTF8 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. This method provides the opposite functionality of the Marshal.StringToCoTaskMemUTF8 methods.

See also

• StringToCoTaskMemUTF8(String)