Marshal.WriteInt64 Method (IntPtr, Int32, Int64)
Writes a 64-bit signed integer value to unmanaged memory at a specified offset.
Assembly: mscorlib (in mscorlib.dll)
[<SecurityCriticalAttribute>] static member WriteInt64 : ptr:nativeint * ofs:int * val:int64 -> unit
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 64-bit signed array, eliminating the expense of copying an entire unmanaged array (using
Writing to unaligned memory locations is supported.
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.
Available since 4.5
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