# winstyle

> [HTML Version](winstyle_aui_control.htm)

Parameter _winstyle_ (integer) May be used in conjunction with _winclass_ or _ctype_ to specify window-style flags. This is equivalent to the _dwStyle _parameter in the WIN32 API CreateWindowsEx() function; consult the Microsoft documentation for details. As with _winclass_, these flags are only practical if they affect the appearance or other characteristic of the control without changing the way it interacts with the application.

| **Symbol** | **Value** | **Description** |
|------|------|------|
| WS\_VISIBLE | \&h10000000 | The window is initially visible.  |
| WS\_CHILD | \&h40000000 | The window is a child window. A window with this style cannot have a menu bar. This style cannot be used with WS\_POPUP. . |
| WS\_OVERLAPPED | \&h00000000 | The window is an overlapped window. An overlapped window has a title bar and a border.  |
| WS\_POPUP | \&h80000000 | The windows is a pop-up window. This style cannot be used with the WS\_CHILD style. |
| WS\_CLIPSIBLINGS | \&h04000000 | Clips child windows relative to each other; that is, when a particular child window receives a [WM\_PAINT](http://msdn.microsoft.com/en-us/library/windows/desktop/dd145213(v=vs.85).aspx) 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. |
| WS\_CLIPCHILDREN | \&h02000000 | Excludes the area occupied by child windows when drawing occurs within the parent window. This style is used when creating the parent window. |
| WS\_MAXIMIZE | \&h01000000 | The window is initially maximized. |
| WS\_CAPTION | \&h00C00000 | Adds a title bar. Includes the WS\_BORDER style. |
| WS\_BORDER | \&h00800000 | Adds a thin-line border. |
| WS\_DLGFRAME | \&h00400000 | The window has a border of a style typically used with dialog boxes. A window with this style cannot have a title bar. |
| WS\_SYSMENU | \&h00080000 | The window has a window menu on its title bar. The WS\_CAPTION style must also be specified. |
| WS\_MINIMIZEBOX | \&h00020000 |  |
| WS\_MAXIMIZEBOX | \&h00010000 | The window has a maximize button. The WS\_SYSMENU style must also be specified. |
| WS\_VSCROLL | \&h00200000 | Used to support vertical scrolling in dialogs. The scroll bar is initially disabled, but is automatically enabled and configured as fields are added to the dialog that extend beyond the bottom of the visible dialog. Users can scroll the dialogs using the scroll bar. AUI\_EVENTWAIT will also auto-scroll the dialog as needed to bring the newly focused control into view. See [Dialog Scrolling](dialogscrolling.htm.md).   |


[Hex-Decimal Values](hex-decimalvalues.htm.md)