This member overrides TextBoxBase.IsInputKey(Keys), and more complete documentation might be available in that topic.
Determines whether the specified key is an input key or a special key that requires preprocessing.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.