This attribute is attached to
a parameter to
marshal it as an in parameter. By default,
parameters are marshaled based on their modifiers, so this attribute
is only necessary if you want to override the defaults. Parameters
with no modifiers are marshaled as [In].
Parameters with the ref modifier are marshaled as
[In, Out]. Parameters with the
out modifier are marshaled as
[Out].
public sealed class InAttribute : Attribute {
// Public Constructors
public InAttribute( );
}