CWPSTRUCT, CWPRETSTRUCT, Prop functions and Control Window Style enums

src/User32/User32+CWPRETSTRUCT.cs

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+// Copyright © .NET Foundation and Contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System;
+    using System.Runtime.InteropServices;
+
+    /// <content>
+    /// Contains the <see cref="CWPRETSTRUCT"/> nested type.
+    /// </content>
+    public partial class User32
+    {
+        /// <summary>
+        /// Defines the message parameters passed to a WH_CALLWNDPROCRET hook procedure, CallWndRetProc.
+        /// </summary>
+        public struct CWPRETSTRUCT
+        {
+            /// <summary>
+            /// The return value of the window procedure that processed the message specified by the message value.
+            /// </summary>
+            public IntPtr lResult;
+
+            /// <summary>
+            /// Additional information about the message. The exact meaning depends on the message value.
+            /// </summary>
+            public IntPtr lParam;
+
+            /// <summary>
+            /// Additional information about the message. The exact meaning depends on the message value.
+            /// </summary>
+            public IntPtr wParam;
+
+            /// <summary>
+            /// The message.
+            /// </summary>
+            public WindowMessage message;
+
+            /// <summary>
+            /// A handle to the window that processed the message specified by the message value.
+            /// </summary>
+            public IntPtr hWnd;
+        }
+    }
+}

src/User32/User32+CWPSTRUCT.cs

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+// Copyright © .NET Foundation and Contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System;
+    using System.Runtime.InteropServices;
+
+    /// <content>
+    /// Contains the <see cref="CWPSTRUCT"/> nested type.
+    /// </content>
+    public partial class User32
+    {
+        /// <summary>
+        /// Defines the message parameters passed to a WH_CALLWNDPROC hook procedure, CallWndProc.
+        /// </summary>
+        public struct CWPSTRUCT
+        {
+            /// <summary>
+            /// Additional information about the message. The exact meaning depends on the message value.
+            /// </summary>
+            public IntPtr lParam;
+
+            /// <summary>
+            /// Additional information about the message. The exact meaning depends on the message value.
+            /// </summary>
+            public IntPtr wParam;
+
+            /// <summary>
+            /// The message.
+            /// </summary>
+            public WindowMessage message;
+
+            /// <summary>
+            /// A handle to the window to receive the message.
+            /// </summary>
+            public IntPtr hWnd;
+        }
+    }
+}

src/User32/User32+WindowStyles+ButtonWindowStyles.cs

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+// Copyright © .NET Foundation and Contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System;
+
+    /// <content>
+    /// Contains the <see cref="ButtonWindowStyles"/> nested type.
+    /// </content>
+    public partial class User32
+    {
+        /// <summary>
+        /// Specifies a combination of button styles. If you create a button using the BUTTON class with the CreateWindow or CreateWindowEx function, you can specify any of the button styles listed below.
+        /// </summary>
+        [Flags]
+        public enum ButtonWindowStyles : uint
+        {
+            /// <summary>
+            /// Creates a push button that posts a WM_COMMAND message to the owner window when the user selects the button.
+            /// </summary>
+            BS_PUSHBUTTON = 0x00000000,
+
+            /// <summary>
+            /// Creates a push button that behaves like a BS_PUSHBUTTON style button, but has a distinct appearance. If the button is in a dialog box, the user can select the button by pressing the ENTER key, even when the button does not have the input focus. This style is useful for enabling the user to quickly select the most likely (default) option.
+            /// </summary>
+            BS_DEFPUSHBUTTON = 0x00000001,
+
+            /// <summary>
+            /// Creates a small, empty check box with text. By default, the text is displayed to the right of the check box. To display the text to the left of the check box, combine this flag with the BS_LEFTTEXT style (or with the equivalent BS_RIGHTBUTTON style).
+            /// </summary>
+            BS_CHECKBOX = 0x00000002,
+
+            /// <summary>
+            /// Creates a button that is the same as a check box, except that the check state automatically toggles between checked and cleared each time the user selects the check box.
+            /// </summary>
+            BS_AUTOCHECKBOX = 0x00000003,
+
+            /// <summary>
+            /// Creates a small circle with text. By default, the text is displayed to the right of the circle. To display the text to the left of the circle, combine this flag with the BS_LEFTTEXT style (or with the equivalent BS_RIGHTBUTTON style). Use radio buttons for groups of related, but mutually exclusive choices.
+            /// </summary>
+            BS_RADIOBUTTON = 0x00000004,
+
+            /// <summary>
+            /// Creates a button that is the same as a check box, except that the box can be grayed as well as checked or cleared. Use the grayed state to show that the state of the check box is not determined.
+            /// </summary>
+            BS_3STATE = 0x00000005,
+
+            /// <summary>
+            /// Creates a button that is the same as a three-state check box, except that the box changes its state when the user selects it. The state cycles through checked, indeterminate, and cleared.
+            /// </summary>
+            BS_AUTO3STATE = 0x00000006,
+
+            /// <summary>
+            /// Creates a rectangle in which other controls can be grouped. Any text associated with this style is displayed in the rectangle's upper left corner.
+            /// </summary>
+            BS_GROUPBOX = 0x00000007,
+
+            /// <summary>
+            /// Obsolete, but provided for compatibility with 16-bit versions of Windows. Applications should use BS_OWNERDRAW instead.
+            /// </summary>
+            BS_USERBUTTON = 0x00000008,
+
+            /// <summary>
+            /// Creates a button that is the same as a radio button, except that when the user selects it, the system automatically sets the button's check state to checked and automatically sets the check state for all other buttons in the same group to cleared.
+            /// </summary>
+            BS_AUTORADIOBUTTON = 0x00000009,
+
+            BS_PUSHBOX = 0x0000000A,
+
+            /// <summary>
+            /// Creates an owner-drawn button. The owner window receives a WM_DRAWITEM message when a visual aspect of the button has changed. Do not combine the BS_OWNERDRAW style with any other button styles.
+            /// </summary>
+            BS_OWNERDRAW = 0x0000000B,
+
+            /// <summary>
+            /// Do not use this style. A composite style bit that results from using the OR operator on BS_* style bits. It can be used to mask out valid BS_* bits from a given bitmask. Note that this is out of date and does not correctly include all valid styles. Thus, you should not use this style.
+            /// </summary>
+            BS_TYPEMASK = 0x0000000F,
+
+            /// <summary>
+            /// Places text on the left side of the radio button or check box when combined with a radio button or check box style. Same as the BS_RIGHTBUTTON style.
+            /// </summary>
+            BS_LEFTTEXT = 0x00000020,
+
+            /// <summary>
+            /// Specifies that the button displays text.
+            /// </summary>
+            BS_TEXT = 0x00000000,
+
+            /// <summary>
+            /// Specifies that the button displays an icon. See the Remarks section for its interaction with BS_BITMAP.
+            /// </summary>
+            BS_ICON = 0x00000040,
+
+            /// <summary>
+            /// Specifies that the button displays a bitmap. See the Remarks section for its interaction with BS_ICON.
+            /// </summary>
+            BS_BITMAP = 0x00000080,
+
+            /// <summary>
+            /// Left-justifies the text in the button rectangle. However, if the button is a check box or radio button that does not have the BS_RIGHTBUTTON style, the text is left justified on the right side of the check box or radio button.
+            /// </summary>
+            BS_LEFT = 0x00000100,
+
+            /// <summary>
+            /// Right-justifies text in the button rectangle. However, if the button is a check box or radio button that does not have the BS_RIGHTBUTTON style, the text is right justified on the right side of the check box or radio button.
+            /// </summary>
+            BS_RIGHT = 0x00000200,
+
+            /// <summary>
+            /// Centers text horizontally in the button rectangle.
+            /// </summary>
+            BS_CENTER = 0x00000300,
+
+            /// <summary>
+            /// Places text at the top of the button rectangle.
+            /// </summary>
+            BS_TOP = 0x00000400,
+
+            /// <summary>
+            /// Places text at the bottom of the button rectangle.
+            /// </summary>
+            BS_BOTTOM = 0x00000800,
+
+            /// <summary>
+            /// Places text in the middle (vertically) of the button rectangle.
+            /// </summary>
+            BS_VCENTER = 0x00000C00,
+
+            /// <summary>
+            /// Makes a button (such as a check box, three-state check box, or radio button) look and act like a push button. The button looks raised when it isn't pushed or checked, and sunken when it is pushed or checked.
+            /// </summary>
+            BS_PUSHLIKE = 0x00001000,
+
+            /// <summary>
+            /// Wraps the button text to multiple lines if the text string is too long to fit on a single line in the button rectangle.
+            /// </summary>
+            BS_MULTILINE = 0x00002000,
+
+            /// <summary>
+            /// Enables a button to send BN_KILLFOCUS and BN_SETFOCUS notification codes to its parent window.
+            /// Note that buttons send the BN_CLICKED notification code regardless of whether it has this style. To get BN_DBLCLK notification codes, the button must have the BS_RADIOBUTTON or BS_OWNERDRAW style.
+            /// </summary>
+            BS_NOTIFY = 0x00004000,
+
+            /// <summary>
+            /// Specifies that the button is two-dimensional; it does not use the default shading to create a 3-D image.
+            /// </summary>
+            BS_FLAT = 0x00008000,
+
+            /// <summary>
+            /// Positions a radio button's circle or a check box's square on the right side of the button rectangle. Same as the BS_LEFTTEXT style.
+            /// </summary>
+            BS_RIGHTBUTTON = BS_LEFTTEXT,
+
+            /// <summary>
+            /// Creates a command link button that behaves like a BS_PUSHBUTTON style button, but the command link button has a green arrow on the left pointing to the button text. A caption for the button text can be set by sending the BCM_SETNOTE message to the button.
+            /// </summary>
+            BS_COMMANDLINK = 0x0000000E,
+
+            /// <summary>
+            /// Creates a command link button that behaves like a BS_PUSHBUTTON style button. If the button is in a dialog box, the user can select the command link button by pressing the ENTER key, even when the command link button does not have the input focus. This style is useful for enabling the user to quickly select the most likely (default) option.
+            /// </summary>
+            BS_DEFCOMMANDLINK = 0x0000000F,
+
+            /// <summary>
+            /// Creates a split button that behaves like a BS_PUSHBUTTON style button, but also has a distinctive appearance. If the split button is in a dialog box, the user can select the split button by pressing the ENTER key, even when the split button does not have the input focus. This style is useful for enabling the user to quickly select the most likely (default) option.
+            /// </summary>
+            BS_DEFSPLITBUTTON = 0x0000000D,
+
+            /// <summary>
+            /// Creates a split button. A split button has a drop down arrow.
+            /// </summary>
+            BS_SPLITBUTTON = 0x0000000C,
+        }
+    }
+}

src/User32/User32+WindowStyles+ComboBoxWindowStyles.cs

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+// Copyright © .NET Foundation and Contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System;
+
+    /// <content>
+    /// Contains the <see cref="ButtonWindowStyles"/> nested type.
+    /// </content>
+    public partial class User32
+    {
+        /// <summary>
+        /// To create a combo box using the CreateWindow or CreateWindowEx function, specify the COMBOBOX class, appropriate window style constants, and a combination of the following combo box styles.
+        /// </summary>
+        [Flags]
+        public enum ComboBoxWindowStyles : uint
+        {
+            /// <summary>
+            /// Displays the list box at all times. The current selection in the list box is displayed in the edit control.
+            /// </summary>
+            CBS_SIMPLE = 0x0001,
+
+            /// <summary>
+            /// Similar to CBS_SIMPLE, except that the list box is not displayed unless the user selects an icon next to the edit control.
+            /// </summary>
+            CBS_DROPDOWN = 0x0002,
+
+            /// <summary>
+            /// Similar to CBS_DROPDOWN, except that the edit control is replaced by a static text item that displays the current selection in the list box.
+            /// </summary>
+            CBS_DROPDOWNLIST = 0x0003,
+
+            /// <summary>
+            /// Specifies that the owner of the list box is responsible for drawing its contents and that the items in the list box are all the same height. The owner window receives a WM_MEASUREITEM message when the combo box is created and a WM_DRAWITEM message when a visual aspect of the combo box has changed.
+            /// </summary>
+            CBS_OWNERDRAWFIXED = 0x0010,
+
+            /// <summary>
+            /// Specifies that the owner of the list box is responsible for drawing its contents and that the items in the list box are variable in height. The owner window receives a WM_MEASUREITEM message for each item in the combo box when you create the combo box and a WM_DRAWITEM message when a visual aspect of the combo box has changed.
+            /// </summary>
+            CBS_OWNERDRAWVARIABLE = 0x0020,
+
+            /// <summary>
+            /// Automatically scrolls the text in an edit control to the right when the user types a character at the end of the line. If this style is not set, only text that fits within the rectangular boundary is allowed.
+            /// </summary>
+            CBS_AUTOHSCROLL = 0x0040,
+
+            /// <summary>
+            /// Converts text entered in the combo box edit control from the Windows character set to the OEM character set and then back to the Windows character set. This ensures proper character conversion when the application calls the CharToOem function to convert a Windows string in the combo box to OEM characters. This style is most useful for combo boxes that contain file names and applies only to combo boxes created with the CBS_SIMPLE or CBS_DROPDOWN style.
+            /// </summary>
+            CBS_OEMCONVERT = 0x0080,
+
+            /// <summary>
+            /// Automatically sorts strings added to the list box.
+            /// </summary>
+            CBS_SORT = 0x0100,
+
+            /// <summary>
+            /// Specifies that an owner-drawn combo box contains items consisting of strings. The combo box maintains the memory and address for the strings so the application can use the CB_GETLBTEXT message to retrieve the text for a particular item.
+            /// For accessibility issues, see Exposing Owner-Drawn Combo Box Items
+            /// </summary>
+            CBS_HASSTRINGS = 0x0200,
+
+            /// <summary>
+            /// Specifies that the size of the combo box is exactly the size specified by the application when it created the combo box. Normally, the system sizes a combo box so that it does not display partial items.
+            /// </summary>
+            CBS_NOINTEGRALHEIGHT = 0x0400,
+
+            /// <summary>
+            /// Shows a disabled vertical scroll bar in the list box when the box does not contain enough items to scroll. Without this style, the scroll bar is hidden when the list box does not contain enough items.
+            /// </summary>
+            CBS_DISABLENOSCROLL = 0x0800,
+
+            /// <summary>
+            /// Converts to uppercase all text in both the selection field and the list.
+            /// </summary>
+            CBS_UPPERCASE = 0x2000,
+
+            /// <summary>
+            /// Converts to lowercase all text in both the selection field and the list.
+            /// </summary>
+            CBS_LOWERCASE = 0x4000,
+        }
+    }
+}