Initialize Method

UnmanagedMemoryAccessor.Initialize Method (SafeBuffer, Int64, Int64, FileAccess)

.NET Framework (current version)
 

Sets the initial values for the accessor.

Namespace:   System.IO
Assembly:  mscorlib (in mscorlib.dll)

[<SecurityPermissionAttribute(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)>]
member Initialize : 
        buffer:SafeBuffer *
        offset:int64 *
        capacity:int64 *
        access:FileAccess -> unit

Parameters

buffer
Type: System.Runtime.InteropServices.SafeBuffer

The buffer to contain the accessor.

offset
Type: System.Int64

The byte at which to start the accessor.

capacity
Type: System.Int64

The size, in bytes, of memory to allocate.

access
Type: System.IO.FileAccess

The type of access allowed to the memory. The default is ReadWrite.

Exception Condition
ArgumentException

offset plus capacity is greater than buffer.

ArgumentNullException

buffer is null.

ArgumentOutOfRangeException

offset or capacity is less than zero.

-or-

access is not a valid MemoryMappedFileAccess enumeration value.

InvalidOperationException

offset plus capacity would wrap around the high end of the address space.

This method is called by the constructors for this class.

SecurityPermission

for access to unmanaged code. Associated enumeration: SecurityPermissionFlag.UnmanagedCode.

Universal Windows Platform
Available since 10
.NET Framework
Available since 4.0
Return to top
Show:
© 2016 Microsoft