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CreateParams.ClassStyle Property

Gets or sets a bitwise combination of class style values.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

public int ClassStyle { get; set; }
/** @property */
public int get_ClassStyle ()

/** @property */
public void set_ClassStyle (int value)

public function get ClassStyle () : int

public function set ClassStyle (value : int)

Not applicable.

Property Value

A bitwise combination of the class style values.

The ClassStyle property is ignored if the ClassName property is not a null reference (Nothing in Visual Basic).

For more information about creating control parameters, see the CreateWindow and CreateWindowEx functions and the CREATESTRUCT structure documentation in the Windows Platform SDK reference located in the MSDN Library.


The constants used to set the Style, ExStyle, and ClassStyle properties are defined in the Winuser.h header file. This file is installed by the Platform SDK or Visual Studio .NET.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0