Marshal.WriteInt16 Method (IntPtr, Int32, Int16)
Writes a 16-bit signed integer value into unmanaged memory at a specified offset.
Assembly: mscorlib (in mscorlib.dll)
<SecurityCriticalAttribute> Public Shared Sub WriteInt16 ( ptr As IntPtr, ofs As Integer, val As Short )
Base address (ptr) plus offset byte (ofs) produces a null or invalid address.
Marshal.Copy) to a separate managed array before setting its element values.enables direct interaction with an unmanaged 16-bit signed array, eliminating the expense of copying an entire unmanaged array (using
Writing to unaligned memory locations is supported.
The following example demonstrates how to read and write to an unmanaged array using the ReadInt16 and methods.
Sub ReadWriteInt16() ' Allocate unmanaged memory. Dim elementSize As Integer = 2 Dim unmanagedArray As IntPtr = Marshal.AllocHGlobal(10 * elementSize) ' Set the 10 elements of the C-style unmanagedArray For i As Integer = 0 To 9 Marshal.WriteInt16(unmanagedArray, i * elementSize, CType(i + 1, Int16)) Next i Console.WriteLine("Unmanaged memory written.") Console.WriteLine("Reading unmanaged memory:") ' Print the 10 elements of the C-style unmanagedArray For i As Integer = 0 To 9 Console.WriteLine(Marshal.ReadInt16(unmanagedArray, i * elementSize)) Next i Marshal.FreeHGlobal(unmanagedArray) Console.WriteLine("Done. Press Enter to continue.") Console.ReadLine() End Sub
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.
Available since 8
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1