// THIS FILE IS PART OF Vanara PROJECT
// THE Vanara PROJECT IS AN OPENSOURCE LIBRARY LICENSED UNDER THE MIT License.
// COPYRIGHT (C) dahall. ALL RIGHTS RESERVED.
// GITHUB: https://github.com/dahall/Vanara

using System;

namespace Vanara.PInvoke
{
    public static partial class User32
    {
        /// <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]
        public enum WindowStyles : uint
        {
            /// <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_THICKFRAME | 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_THICKFRAME = 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,

            /// <summary>
            /// The window is an overlapped window. An overlapped window has a title bar and a border. Same as the WS_OVERLAPPED style.
            /// </summary>
            WS_TILED = WS_OVERLAPPED,

            /// <summary>The window is initially minimized. Same as the WS_MINIMIZE style.</summary>
            WS_ICONIC = WS_MINIMIZE,

            /// <summary>The window has a sizing border. Same as the WS_THICKFRAME style.</summary>
            WS_SIZEBOX = WS_THICKFRAME,

            /// <summary>The window is an overlapped window. Same as the WS_OVERLAPPEDWINDOW style.</summary>
            WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW,

            /// <summary>Same as the WS_CHILD style.</summary>
            WS_CHILDWINDOW = WS_CHILD,
        }

        /// <summary>Extended window styles.</summary>
        [Flags]
        public enum WindowStylesEx : 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>
            /// The window does not render to a redirection surface. This is for windows that do not have visible content or that use
            /// mechanisms other than surfaces to provide their visual.
            /// </summary>
            WS_EX_NOREDIRECTIONBITMAP = 0x00200000,

            /// <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,
        }
    }
}