Reads a 64-bit signed integer from unmanaged memory.
Syntax
[System.Runtime.ConstrainedExecution.ReliabilityContract(System.Runtime.ConstrainedExecution.Consistency.WillNotCorruptState, System.Runtime.ConstrainedExecution.Cer.Success)]
public static long ReadInt64 (IntPtr ptr)
public static long ReadInt64 (IntPtr ptr)
Parameters
- ptr
Returns
The 64-bit signed integer read from unmanaged memory.
Remarks
Marshal.ReadInt64(IntPtr) has an implied offset of 0. This method enables direct interaction with an unmanaged C-style Int64 array, eliminating the expense of copying an entire unmanaged array (using Marshal.Copy(Int32[], int, IntPtr, int)) to a separate managed array before reading its element values.
Reading from unaligned memory locations is supported.
Requirements
Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0