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WindowStyles (Enums)
 
.
Summary
Summary
Defines the possible window style flags in Microsoft's API. These flags can be OR'd together to make more complex styles.

C# Definition:

[Flags]
public enum WindowStylesEx : uint
  /// <summary>
  /// Window Styles.
  /// The following styles can be specified wherever a window style is required. After the control has been created, these styles cannot be modified, except as noted.
  /// </summary>
[Flags()]
private enum WindowStyles : uint
{
    /// <summary>Specifies a window that accepts drag-drop files.</summary>
    WS_EX_ACCEPTFILES = 0x00000010,

    /// <summary>Forces a top-level window onto the taskbar when the window is visible.</summary>
    WS_EX_APPWINDOW = 0x00040000,

    /// <summary>Specifies a window that has a border with a sunken edge.</summary>
    WS_EX_CLIENTEDGE = 0x00000200,

    /// <summary>
    /// Specifies a window that paints all descendants in bottom-to-top painting order using double-buffering.
    /// This cannot be used if the window has a class style of either CS_OWNDC or CS_CLASSDC. This style is not supported in Windows 2000.
    /// </summary>
    /// <remarks>
    /// With WS_EX_COMPOSITED set, all descendants of a window get bottom-to-top painting order using double-buffering.
    /// Bottom-to-top painting order allows a descendent window to have translucency (alpha) and transparency (color-key) effects,
    /// but only if the descendent window also has the WS_EX_TRANSPARENT bit set.
    /// Double-buffering allows the window and its descendents to be painted without flicker.
    /// </remarks>
    WS_EX_COMPOSITED = 0x02000000,

    /// <summary>
    /// Specifies a window that includes a question mark in the title bar. When the user clicks the question mark,
    /// the cursor changes to a question mark with a pointer. If the user then clicks a child window, the child receives a WM_HELP message.
    /// The child window should pass the message to the parent window procedure, which should call the WinHelp function using the HELP_WM_HELP command.
    /// The Help application displays a pop-up window that typically contains help for the child window.
    /// WS_EX_CONTEXTHELP cannot be used with the WS_MAXIMIZEBOX or WS_MINIMIZEBOX styles.
    /// </summary>
    WS_EX_CONTEXTHELP = 0x00000400,

    /// <summary>
    /// Specifies a window which contains child windows that should take part in dialog box navigation.
    /// If this style is specified, the dialog manager recurses into children of this window when performing navigation operations
    /// such as handling the TAB key, an arrow key, or a keyboard mnemonic.
    /// </summary>
    WS_EX_CONTROLPARENT = 0x00010000,

    /// <summary>Specifies a window that has a double border.</summary>
    WS_EX_DLGMODALFRAME = 0x00000001,

    /// <summary>
    /// Specifies a window that is a layered window.
    /// This cannot be used for child windows or if the window has a class style of either CS_OWNDC or CS_CLASSDC.
    /// </summary>
    WS_EX_LAYERED = 0x00080000,

    /// <summary>
    /// Specifies a window with the horizontal origin on the right edge. Increasing horizontal values advance to the left.
    /// The shell language must support reading-order alignment for this to take effect.
    /// </summary>
    WS_EX_LAYOUTRTL = 0x00400000,

    /// <summary>Specifies a window that has generic left-aligned properties. This is the default.</summary>
    WS_EX_LEFT = 0x00000000,

    /// <summary>
    /// Specifies a window with the vertical scroll bar (if present) to the left of the client area.
    /// The shell language must support reading-order alignment for this to take effect.
    /// </summary>
    WS_EX_LEFTSCROLLBAR = 0x00004000,

    /// <summary>
    /// Specifies a window that displays text using left-to-right reading-order properties. This is the default.
    /// </summary>
    WS_EX_LTRREADING = 0x00000000,

    /// <summary>
    /// Specifies a multiple-document interface (MDI) child window.
    /// </summary>
    WS_EX_MDICHILD = 0x00000040,

    /// <summary>
    /// Specifies a top-level window created with this style does not become the foreground window when the user clicks it.
    /// The system does not bring this window to the foreground when the user minimizes or closes the foreground window.
    /// The window does not appear on the taskbar by default. To force the window to appear on the taskbar, use the WS_EX_APPWINDOW style.
    /// To activate the window, use the SetActiveWindow or SetForegroundWindow function.
    /// </summary>
    WS_EX_NOACTIVATE = 0x08000000,

    /// <summary>
    /// Specifies a window which does not pass its window layout to its child windows.
    /// </summary>
    WS_EX_NOINHERITLAYOUT = 0x00100000,

    /// <summary>
    /// Specifies that a child window created with this style does not send the WM_PARENTNOTIFY message to its parent window when it is created or destroyed.
    /// </summary>
    WS_EX_NOPARENTNOTIFY = 0x00000004,

    /// <summary>Specifies an overlapped window.</summary>
    WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE,

    /// <summary>Specifies a palette window, which is a modeless dialog box that presents an array of commands.</summary>
    WS_EX_PALETTEWINDOW = WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW | WS_EX_TOPMOST,

    /// <summary>
    /// Specifies a window that has generic "right-aligned" properties. This depends on the window class.
    /// The shell language must support reading-order alignment for this to take effect.
    /// Using the WS_EX_RIGHT style has the same effect as using the SS_RIGHT (static), ES_RIGHT (edit), and BS_RIGHT/BS_RIGHTBUTTON (button) control styles.
    /// </summary>
    WS_EX_RIGHT = 0x00001000,

    /// <summary>Specifies a window with the vertical scroll bar (if present) to the right of the client area. This is the default.</summary>
    WS_EX_RIGHTSCROLLBAR = 0x00000000,

    /// <summary>
    /// Specifies a window that displays text using right-to-left reading-order properties.
    /// The shell language must support reading-order alignment for this to take effect.
    /// </summary>
    WS_EX_RTLREADING = 0x00002000,

    /// <summary>Specifies a window with a three-dimensional border style intended to be used for items that do not accept user input.</summary>
    WS_EX_STATICEDGE = 0x00020000,

    /// <summary>
    /// Specifies a window that is intended to be used as a floating toolbar.
    /// A tool window has a title bar that is shorter than a normal title bar, and the window title is drawn using a smaller font.
    /// A tool window does not appear in the taskbar or in the dialog that appears when the user presses ALT+TAB.
    /// If a tool window has a system menu, its icon is not displayed on the title bar.
    /// However, you can display the system menu by right-clicking or by typing ALT+SPACE.
    /// </summary>
    WS_EX_TOOLWINDOW = 0x00000080,

    /// <summary>
    /// Specifies a window that should be placed above all non-topmost windows and should stay above them, even when the window is deactivated.
    /// To add or remove this style, use the SetWindowPos function.
    /// </summary>
    WS_EX_TOPMOST = 0x00000008,

    /// <summary>
    /// Specifies a window that should not be painted until siblings beneath the window (that were created by the same thread) have been painted.
    /// The window appears transparent because the bits of underlying sibling windows have already been painted.
    /// To achieve transparency without these restrictions, use the SetWindowRgn function.
    /// </summary>
    WS_EX_TRANSPARENT = 0x00000020,

    /// <summary>Specifies a window that has a border with a raised edge.</summary>
    WS_EX_WINDOWEDGE = 0x00000100
    /// <summary>The window has a thin-line border.</summary>
    WS_BORDER = 0x800000,

    /// <summary>The window has a title bar (includes the WS_BORDER style).</summary>
    WS_CAPTION = 0xc00000,

    /// <summary>The window is a child window. A window with this style cannot have a menu bar. This style cannot be used with the WS_POPUP style.</summary>
    WS_CHILD = 0x40000000,

    /// <summary>Excludes the area occupied by child windows when drawing occurs within the parent window. This style is used when creating the parent window.</summary>
    WS_CLIPCHILDREN = 0x2000000,

    /// <summary>
    /// Clips child windows relative to each other; that is, when a particular child window receives a WM_PAINT message, the WS_CLIPSIBLINGS style clips all other overlapping child windows out of the region of the child window to be updated.
    /// If WS_CLIPSIBLINGS is not specified and child windows overlap, it is possible, when drawing within the client area of a child window, to draw within the client area of a neighboring child window.
    /// </summary>
    WS_CLIPSIBLINGS = 0x4000000,

    /// <summary>The window is initially disabled. A disabled window cannot receive input from the user. To change this after a window has been created, use the EnableWindow function.</summary>
    WS_DISABLED = 0x8000000,

    /// <summary>The window has a border of a style typically used with dialog boxes. A window with this style cannot have a title bar.</summary>
    WS_DLGFRAME = 0x400000,

    /// <summary>
    /// The window is the first control of a group of controls. The group consists of this first control and all controls defined after it, up to the next control with the WS_GROUP style.
    /// The first control in each group usually has the WS_TABSTOP style so that the user can move from group to group. The user can subsequently change the keyboard focus from one control in the group to the next control in the group by using the direction keys.
    /// You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function.
    /// </summary>
    WS_GROUP = 0x20000,

    /// <summary>The window has a horizontal scroll bar.</summary>
    WS_HSCROLL = 0x100000,

    /// <summary>The window is initially maximized.</summary>
    WS_MAXIMIZE = 0x1000000,

    /// <summary>The window has a maximize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.</summary>
    WS_MAXIMIZEBOX = 0x10000,

    /// <summary>The window is initially minimized.</summary>
    WS_MINIMIZE = 0x20000000,

    /// <summary>The window has a minimize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.</summary>
    WS_MINIMIZEBOX = 0x20000,

    /// <summary>The window is an overlapped window. An overlapped window has a title bar and a border.</summary>
    WS_OVERLAPPED = 0x0,

    /// <summary>The window is an overlapped window.</summary>
    WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_SIZEFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,

    /// <summary>The window is a pop-up window. This style cannot be used with the WS_CHILD style.</summary>
    WS_POPUP = 0x80000000u,

    /// <summary>The window is a pop-up window. The WS_CAPTION and WS_POPUPWINDOW styles must be combined to make the window menu visible.</summary>
    WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU,

    /// <summary>The window has a sizing border.</summary>
    WS_SIZEFRAME = 0x40000,

    /// <summary>The window has a window menu on its title bar. The WS_CAPTION style must also be specified.</summary>
    WS_SYSMENU = 0x80000,

    /// <summary>
    /// The window is a control that can receive the keyboard focus when the user presses the TAB key.
    /// Pressing the TAB key changes the keyboard focus to the next control with the WS_TABSTOP style.  
    /// You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function.
    /// For user-created windows and modeless dialogs to work with tab stops, alter the message loop to call the IsDialogMessage function.
    /// </summary>
    WS_TABSTOP = 0x10000,

    /// <summary>The window is initially visible. This style can be turned on and off by using the ShowWindow or SetWindowPos function.</summary>
    WS_VISIBLE = 0x10000000,

    /// <summary>The window has a vertical scroll bar.</summary>
    WS_VSCROLL = 0x200000
}

C# Definition:

[Flags]
public enum WindowStylesEx : uint
private enum WindowStyles : uint
{
    WS_EX_ACCEPTFILES = 0x00000010,
    WS_EX_APPWINDOW = 0x00040000,
    WS_EX_CLIENTEDGE = 0x00000200,
    WS_EX_COMPOSITED = 0x02000000,
    WS_EX_CONTEXTHELP = 0x00000400,
    WS_EX_CONTROLPARENT = 0x00010000,
    WS_EX_DLGMODALFRAME = 0x00000001,
    WS_EX_LAYERED = 0x00080000,
    WS_EX_LAYOUTRTL = 0x00400000,
    WS_EX_LEFT = 0x00000000,
    WS_EX_LEFTSCROLLBAR = 0x00004000,
    WS_EX_LTRREADING = 0x00000000,
    WS_EX_MDICHILD = 0x00000040,
    WS_EX_NOACTIVATE = 0x08000000,
    WS_EX_NOINHERITLAYOUT = 0x00100000,
    WS_EX_NOPARENTNOTIFY = 0x00000004,
    WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE,
    WS_EX_PALETTEWINDOW = WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW | WS_EX_TOPMOST,
    WS_EX_RIGHT = 0x00001000,
    WS_EX_RIGHTSCROLLBAR = 0x00000000,
    WS_EX_RTLREADING = 0x00002000,
    WS_EX_STATICEDGE = 0x00020000,
    WS_EX_TOOLWINDOW = 0x00000080,
    WS_EX_TOPMOST = 0x00000008,
    WS_EX_TRANSPARENT = 0x00000020,
    WS_EX_WINDOWEDGE = 0x00000100
    WS_BORDER = 0x800000,
    WS_CAPTION = 0xc00000,
    WS_CHILD = 0x40000000,
    WS_CLIPCHILDREN = 0x2000000,
    WS_CLIPSIBLINGS = 0x4000000,
    WS_DISABLED = 0x8000000,
    WS_DLGFRAME = 0x400000,
    WS_GROUP = 0x20000,
    WS_HSCROLL = 0x100000,
    WS_MAXIMIZE = 0x1000000,
    WS_MAXIMIZEBOX = 0x10000,
    WS_MINIMIZE = 0x20000000,
    WS_MINIMIZEBOX = 0x20000,
    WS_OVERLAPPED = 0x0,
    WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_SIZEFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
    WS_POPUP = 0x80000000u,
    WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU,
    WS_SIZEFRAME = 0x40000,
    WS_SYSMENU = 0x80000,
    WS_TABSTOP = 0x10000,
    WS_VISIBLE = 0x10000000,
    WS_VSCROLL = 0x200000
}

VB.NET Definition:

<Flags()> _
Public Enum WindowStylesEx As UInteger
    ''' <summary>Specifies a window that accepts drag-drop files.</summary>
    WS_EX_ACCEPTFILES = &H10

    ''' <summary>Forces a top-level window onto the taskbar when the window is visible.</summary>
    WS_EX_APPWINDOW = &H40000

    ''' <summary>Specifies a window that has a border with a sunken edge.</summary>
    WS_EX_CLIENTEDGE = &H200

    ''' <summary>
    ''' Specifies a window that paints all descendants in bottom-to-top painting order using double-buffering.
    ''' This cannot be used if the window has a class style of either CS_OWNDC or CS_CLASSDC. This style is not supported in Windows 2000.
    ''' </summary>
    ''' <remarks>
    ''' With WS_EX_COMPOSITED set, all descendants of a window get bottom-to-top painting order using double-buffering.
    ''' Bottom-to-top painting order allows a descendent window to have translucency (alpha) and transparency (color-key) effects,
    ''' but only if the descendent window also has the WS_EX_TRANSPARENT bit set.
    ''' Double-buffering allows the window and its descendents to be painted without flicker.
    ''' </remarks>
    WS_EX_COMPOSITED = &H2000000

    ''' <summary>
    ''' Specifies a window that includes a question mark in the title bar. When the user clicks the question mark,
    ''' the cursor changes to a question mark with a pointer. If the user then clicks a child window, the child receives a WM_HELP message.
    ''' The child window should pass the message to the parent window procedure, which should call the WinHelp function using the HELP_WM_HELP command.
    ''' The Help application displays a pop-up window that typically contains help for the child window.
    ''' WS_EX_CONTEXTHELP cannot be used with the WS_MAXIMIZEBOX or WS_MINIMIZEBOX styles.
    ''' </summary>
    WS_EX_CONTEXTHELP = &H400

    ''' <summary>
    ''' Specifies a window which contains child windows that should take part in dialog box navigation.
    ''' If this style is specified, the dialog manager recurses into children of this window when performing navigation operations
    ''' such as handling the TAB key, an arrow key, or a keyboard mnemonic.
    ''' </summary>
    WS_EX_CONTROLPARENT = &H10000

    ''' <summary>Specifies a window that has a double border.</summary>
    WS_EX_DLGMODALFRAME = &H1

    ''' <summary>
    ''' Specifies a window that is a layered window.
    ''' This cannot be used for child windows or if the window has a class style of either CS_OWNDC or CS_CLASSDC.
    ''' </summary>
    WS_EX_LAYERED = &H80000

    ''' <summary>
    ''' Specifies a window with the horizontal origin on the right edge. Increasing horizontal values advance to the left.
    ''' The shell language must support reading-order alignment for this to take effect.
    ''' </summary>
    WS_EX_LAYOUTRTL = &H400000

    ''' <summary>Specifies a window that has generic left-aligned properties. This is the default.</summary>
    WS_EX_LEFT = &H0

    ''' <summary>
    ''' Specifies a window with the vertical scroll bar (if present) to the left of the client area.
    ''' The shell language must support reading-order alignment for this to take effect.
    ''' </summary>
    WS_EX_LEFTSCROLLBAR = &H4000

    ''' <summary>
    ''' Specifies a window that displays text using left-to-right reading-order properties. This is the default.
    ''' </summary>
    WS_EX_LTRREADING = &H0

    ''' <summary>
    ''' Specifies a multiple-document interface (MDI) child window.
    ''' </summary>
    WS_EX_MDICHILD = &H40

    ''' <summary>
    ''' Specifies a top-level window created with this style does not become the foreground window when the user clicks it.
    ''' The system does not bring this window to the foreground when the user minimizes or closes the foreground window.
    ''' The window does not appear on the taskbar by default. To force the window to appear on the taskbar, use the WS_EX_APPWINDOW style.
    ''' To activate the window, use the SetActiveWindow or SetForegroundWindow function.
    ''' </summary>
    WS_EX_NOACTIVATE = &H8000000

    ''' <summary>
    ''' Specifies a window which does not pass its window layout to its child windows.
    ''' </summary>
    WS_EX_NOINHERITLAYOUT = &H100000

    ''' <summary>
    ''' Specifies that a child window created with this style does not send the WM_PARENTNOTIFY message to its parent window when it is created or destroyed.
    ''' </summary>
    WS_EX_NOPARENTNOTIFY = &H4

    ''' <summary>Specifies an overlapped window.</summary>
    WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE Or WS_EX_CLIENTEDGE

    ''' <summary>Specifies a palette window, which is a modeless dialog box that presents an array of commands.</summary>
    WS_EX_PALETTEWINDOW = WS_EX_WINDOWEDGE Or WS_EX_TOOLWINDOW Or WS_EX_TOPMOST

    ''' <summary>
    ''' Specifies a window that has generic "right-aligned" properties. This depends on the window class.
    ''' The shell language must support reading-order alignment for this to take effect.
    ''' Using the WS_EX_RIGHT style has the same effect as using the SS_RIGHT (static), ES_RIGHT (edit), and BS_RIGHT/BS_RIGHTBUTTON (button) control styles.
    ''' </summary>
    WS_EX_RIGHT = &H1000

    ''' <summary>Specifies a window with the vertical scroll bar (if present) to the right of the client area. This is the default.</summary>
    WS_EX_RIGHTSCROLLBAR = &H0

    ''' <summary>
    ''' Specifies a window that displays text using right-to-left reading-order properties.
    ''' The shell language must support reading-order alignment for this to take effect.
    ''' </summary>
    WS_EX_RTLREADING = &H2000

    ''' <summary>Specifies a window with a three-dimensional border style intended to be used for items that do not accept user input.</summary>
    WS_EX_STATICEDGE = &H20000

    ''' <summary>
    ''' Specifies a window that is intended to be used as a floating toolbar.
    ''' A tool window has a title bar that is shorter than a normal title bar, and the window title is drawn using a smaller font.
    ''' A tool window does not appear in the taskbar or in the dialog that appears when the user presses ALT+TAB.
    ''' If a tool window has a system menu, its icon is not displayed on the title bar.
    ''' However, you can display the system menu by right-clicking or by typing ALT+SPACE.
    ''' </summary>
    WS_EX_TOOLWINDOW = &H80

    ''' <summary>
    ''' Specifies a window that should be placed above all non-topmost windows and should stay above them, even when the window is deactivated.
    ''' To add or remove this style, use the SetWindowPos function.
    ''' </summary>
    WS_EX_TOPMOST = &H8

    ''' <summary>
    ''' Specifies a window that should not be painted until siblings beneath the window (that were created by the same thread) have been painted.
    ''' The window appears transparent because the bits of underlying sibling windows have already been painted.
    ''' To achieve transparency without these restrictions, use the SetWindowRgn function.
    ''' </summary>
    WS_EX_TRANSPARENT = &H20

    ''' <summary>Specifies a window that has a border with a raised edge.</summary>
    WS_EX_WINDOWEDGE = &H100
End Enum

VB Definition:

Public Enum WindowStylesEx
    WS_EX_ACCEPTFILES As Long = &H10
    WS_EX_APPWINDOW  As Long = &H40000
    WS_EX_CLIENTEDGE As Long = &H200
    WS_EX_COMPOSITED As Long = &H2000000
    WS_EX_CONTEXTHELP As Long = &H400
    WS_EX_CONTROLPARENT As Long = &H10000
    WS_EX_DLGMODALFRAME As Long = &H1
    WS_EX_LAYERED As Long = &H80000
    WS_EX_LAYOUTRTL As Long = &H400000
    WS_EX_LEFT As Long = &H0
    WS_EX_LEFTSCROLLBAR As Long = &H4000
    WS_EX_LTRREADING As Long = &H0
    WS_EX_MDICHILD As Long = &H40
    WS_EX_NOACTIVATE As Long = &H8000000
    WS_EX_NOINHERITLAYOUT As Long = &H100000
    WS_EX_NOPARENTNOTIFY As Long = &H4
    WS_EX_OVERLAPPEDWINDOW As Long = WS_EX_WINDOWEDGE Or WS_EX_CLIENTEDGE
    WS_EX_PALETTEWINDOW As Long = WS_EX_WINDOWEDGE Or WS_EX_TOOLWINDOW Or WS_EX_TOPMOST
    WS_EX_RIGHT As Long = &H1000
    WS_EX_RIGHTSCROLLBAR As Long = &H0
    WS_EX_RTLREADING As Long = &H2000
    WS_EX_STATICEDGE As Long = &H20000
    WS_EX_TOOLWINDOW As Long = &H80
    WS_EX_TOPMOST As Long = &H8
    WS_EX_TRANSPARENT As Long = &H20
    WS_EX_WINDOWEDGE As Long = &H100
End Enum

Notes:

None.

''' <summary>
''' Window Styles.
''' The following styles can be specified wherever a window style is required. After the control has been created, these styles cannot be modified, except as noted.
''' </summary>
     <Flags()> Private Enum WindowStyles As UInteger
    ''' <summary>The window has a thin-line border.</summary>
    WS_BORDER = &H800000

Documentation

    ''' <summary>The window has a title bar (includes the WS_BORDER style).</summary>
    WS_CAPTION = &HC00000

    ''' <summary>The window is a child window. A window with this style cannot have a menu bar. This style cannot be used with the WS_POPUP style.</summary>
    WS_CHILD = &H40000000

    ''' <summary>Excludes the area occupied by child windows when drawing occurs within the parent window. This style is used when creating the parent window.</summary>
    WS_CLIPCHILDREN = &H2000000

    ''' <summary>
    ''' Clips child windows relative to each other; that is, when a particular child window receives a WM_PAINT message, the WS_CLIPSIBLINGS style clips all other overlapping child windows out of the region of the child window to be updated.
    ''' If WS_CLIPSIBLINGS is not specified and child windows overlap, it is possible, when drawing within the client area of a child window, to draw within the client area of a neighboring child window.
    ''' </summary>
    WS_CLIPSIBLINGS = &H4000000

    ''' <summary>The window is initially disabled. A disabled window cannot receive input from the user. To change this after a window has been created, use the EnableWindow function.</summary>
    WS_DISABLED = &H8000000

    ''' <summary>The window has a border of a style typically used with dialog boxes. A window with this style cannot have a title bar.</summary>
    WS_DLGFRAME = &H400000

    ''' <summary>
    ''' The window is the first control of a group of controls. The group consists of this first control and all controls defined after it, up to the next control with the WS_GROUP style.
    ''' The first control in each group usually has the WS_TABSTOP style so that the user can move from group to group. The user can subsequently change the keyboard focus from one control in the group to the next control in the group by using the direction keys.
    ''' You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function.
    ''' </summary>
    WS_GROUP = &H20000

    ''' <summary>The window has a horizontal scroll bar.</summary>
    WS_HSCROLL = &H100000

    ''' <summary>The window is initially maximized.</summary>
    WS_MAXIMIZE = &H1000000

    ''' <summary>The window has a maximize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.</summary>
    WS_MAXIMIZEBOX = &H10000

    ''' <summary>The window is initially minimized.</summary>
    WS_MINIMIZE = &H20000000

    ''' <summary>The window has a minimize button. Cannot be combined with the WS_EX_CONTEXTHELP style. The WS_SYSMENU style must also be specified.</summary>
    WS_MINIMIZEBOX = &H20000

    ''' <summary>The window is an overlapped window. An overlapped window has a title bar and a border.</summary>
    WS_OVERLAPPED = &H0

    ''' <summary>The window is an overlapped window.</summary>
    WS_OVERLAPPEDWINDOW = WS_OVERLAPPED Or WS_CAPTION Or WS_SYSMENU Or WS_SIZEFRAME Or WS_MINIMIZEBOX Or WS_MAXIMIZEBOX

    ''' <summary>The window is a pop-up window. This style cannot be used with the WS_CHILD style.</summary>
    WS_POPUP = &H80000000UI

    ''' <summary>The window is a pop-up window. The WS_CAPTION and WS_POPUPWINDOW styles must be combined to make the window menu visible.</summary>
    WS_POPUPWINDOW = WS_POPUP Or WS_BORDER Or WS_SYSMENU

    ''' <summary>The window has a sizing border.</summary>
    WS_SIZEFRAME = &H40000

    ''' <summary>The window has a window menu on its title bar. The WS_CAPTION style must also be specified.</summary>
    WS_SYSMENU = &H80000

    ''' <summary>
    ''' The window is a control that can receive the keyboard focus when the user presses the TAB key.
    ''' Pressing the TAB key changes the keyboard focus to the next control with the WS_TABSTOP style.  
    ''' You can turn this style on and off to change dialog box navigation. To change this style after a window has been created, use the SetWindowLong function.
    ''' For user-created windows and modeless dialogs to work with tab stops, alter the message loop to call the IsDialogMessage function.
    ''' </summary>
    WS_TABSTOP = &H10000

    ''' <summary>The window is initially visible. This style can be turned on and off by using the ShowWindow or SetWindowPos function.</summary>
    WS_VISIBLE = &H10000000

    ''' <summary>The window has a vertical scroll bar.</summary>
    WS_VSCROLL = &H200000
    End Enum

VB Definition

Public Enum WindowStyles
     WS_BORDER As Long = &H800000
     WS_CAPTION As Long = &HC00000
     WS_CHILD As Long = &H40000000
     WS_CLIPCHILDREN As Long = &H2000000
     WS_CLIPSIBLINGS As Long = &H4000000
     WS_DISABLED As Long = &H8000000
     WS_DLGFRAME As Long = &H400000
     WS_GROUP As Long = &H20000
     WS_HSCROLL As Long = &H100000
     WS_MAXIMIZE As Long = &H1000000
     WS_MAXIMIZEBOX As Long = &H10000
     WS_MINIMIZE As Long = &H20000000
     WS_MINIMIZEBOX As Long = &H20000
     WS_OVERLAPPED As Long = &H0
     WS_OVERLAPPEDWINDOW As Long = WS_OVERLAPPED Or WS_CAPTION Or WS_SYSMENU Or WS_SIZEFRAME Or WS_MINIMIZEBOX Or WS_MAXIMIZEBOX
     WS_POPUP As Long = &H80000000UI
     WS_POPUPWINDOW As Long = WS_POPUP Or WS_BORDER Or WS_SYSMENU
     WS_SIZEFRAME As Long = &H40000
     WS_SYSMENU As Long = &H80000
     WS_TABSTOP As Long = &H10000
     WS_VISIBLE As Long = &H10000000
     WS_VSCROLL As Long = &H200000
End Enum    

Notes:

For extended window styles, see WindowStylesEx.

Documentation
 

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