Value	Meaning
0x0200	The application will be compatible with Comctl32.dll version 4.00 and later. The application will not be able to implement the common control features that were added after version 4.00 of Comctl32.dll.
0x0300	The application will be compatible with Comctl32.dll version 4.70 and later. The application will not be able to implement the common control features that were added after version 4.70 of Comctl32.dll.
0x0400	The application will be compatible with Comctl32.dll version 4.71 and later. The application will not be able to implement the common control features that were added after version 4.71 of Comctl32.dll.

Figure 3   Internet Explorer 4.0 Common Control Class Families

Class Flag	Description
ICC_ANIMATE_CLASS	Load animate control class.
ICC_BAR_CLASSES	Load toolbar, status bar, trackbar, and tooltip control classes.
ICC_COOL_CLASSES	Load rebar control class.
ICC_DATE_CLASSES	Load date and time picker control class.
ICC_HOTKEY_CLASS	Load hotkey control class.
ICC_INTERNET_CLASSES	Load IP address class.
ICC_LISTVIEW_CLASSES	Load list view and header control classes.
ICC_PAGESCROLLER_CLASS	Load pager control class.
ICC_PROGRESS_CLASS	Load progress bar control class.
ICC_TAB_CLASSES	Load tab and tooltip control classes.
ICC_TREEVIEW_CLASSES	Load tree view and tooltip control classes.
ICC_UPDOWN_CLASS	Load up-down control class.
ICC_USEREX_CLASSES	Load ComboBoxEx class.
ICC_WIN95_CLASSES	Load animate control, header, hotkey, list view, progress bar, status bar, tab, tooltip, toolbar, trackbar, tree view, and up-down control classes.

Figure 4   Internet Explorer 4.0 Common Control Classes

Class Name	Description
ANIMATE_ CLASS	Creates animation controls. These controls silently display an AVI clip.
DATETIMEPICK_CLASS	Creates date and time picker controls. These controls provide a simple and intuitive interface to exchange date and time information with a user.
HOTKEY_CLASS	Creates hotkey controls. These controls make it easy for the user to define hotkeys.
MONTHCAL_CLASS	Creates month calendar controls. These controls provide a simple and intuitive way for a user to select a date from a familiar interface.
PROGRESS_CLASS	Creates progress bars. These controls indicate the progress of a lengthy operation.
REBARCLASSNAME	Creates rebar controls. These controls act as a container for child windows.
STATUSCLASSNAME	Creates status windows. These controls display status information in a horizontal window.
TOOLBARCLASSNAME	Creates toolbars. These controls contain buttons that carry out menu commands.
TOOLTIPS_CLASS	Creates tooltip controls. These controls display a small pop-up window containing a line of text that describes the purpose of a tool in an application.
TRACKBAR_CLASS	Creates trackbars. These controls let the user select from a range of values by moving a slider.
UPDOWN_CLASS	Creates up-down controls. These controls combine a pair of arrows with an edit control. Clicking the arrows increments or decrements the value in the edit control.
WC_COMBOBOXEX	Creates ComboBoxEx controls. These controls provide an extension of the combobox control that provides native support for item images.
WC_HEADER	Creates header controls. These controls display headings at the top of columns of information and let the user sort the information by clicking the headings.
WC_IPADDRESS	Creates IP address controls. These controls are similar to an edit control, but allow you to enter a numerical address in IP format.
WC_LISTVIEW	Creates list view controls. These controls display a collection of items, each consisting of an icon and a label, and provide several ways to arrange the items.
WC_PAGESCROLLER	Creates pager controls. These controls are used to contain and scroll another window.
WC_TABCONTROL	Creates tab controls. These controls define multiple pages for the same area of a window or dialog box. Each page consists of a set of information or a group of controls that an application displays when the user selects the corresponding tab.
WC_TREEVIEW	Creates tree view controls. These controls display a hierarchical list of items. Each item consists of a label and an optional bitmap.

Figure 5    New Toolbar Features

New Feature	Description
Image List Support	Toolbar controls can use up to three different image lists to display buttons in various states: normal, hot, and disabled.
Transparent Style	Toolbar controls support a new, transparent look. With the TBSTYLE_FLAT style in place, the control displays buttons while allowing the client area under the toolbar to show through. Transparent toolbars also feature hot tracking.
Dropdown Toolbar Buttons	Toolbar controls support dropdown style buttons. Dropdown buttons have the TBSTYLE_DROPDOWN style.
Insertion Marks	Toolbar controls now support insertion marks. An insertion mark provides a visual indication where an item will be inserted (helpful for drag and drop).

Figure 8    New Status Bar Features

New Feature	Description
Icon Support	Icons can now be displayed in a status bar. The SB_SETICON message is used to set the icon.
Enhanced Simple Mode Support	The SB_ISSIMPLE message has been added to determine if a status bar is in simple mode. The SB_SIMPLEMODE- CHANGE notification has been added to inform the owner that the simple mode has changed.
Background Color Support	The SB_SETBKCOLOR message has been added to allow the background color of a status bar to modified.
Tooltip Support	The status bar now supports tooltips. To enable tooltips, the SBT_TOOLTIPS style must be set when the status bar is created.

Figure 10    New Image List Features

New Feature	Description
Copying Images	Copy or swap images within an image list using the ImageList_Copy function.
Duplicating Image Lists	Take an existing image list and duplicate all of its parameters and contents into a new image list using the ImageList_Duplicate function.
Dynamic Resizing of Image Lists	Modify the number of images in an image list on the fly using the ImageList_Set-ImageCount function.
Extended Drawing of Images	You now have more control over the drawing of images with the ImageList_DrawIndirect function.

Figure 11    New List View Features

New Feature	Description
Columns Update	Columns now support images and dynamic ordering.
Extended List View Styles	Two new macros exist for setting the extended window styles for a list view control: ListView_SetExtendedListViewStyle and ListView_GetExtendedListViewStyle. The new extended styles are: LVS_EX_CHECKBOXES, LVS_EX_FLATSB, LVS_EX_FULLROWSELECT, LVS_EX_GRIDLINES, LVS_EX_HEADERDRAGDROP, LVS_EX_INFOTIP, LVS_EX_ONECLICKACTIVATE, LVS_EX_REGIONAL, LVS_EX_SUBITEMIMAGES, LVS_EX_TRACKSELECT, LVS_EX_TWOCLICKACTIVATE.
List View Working Areas	Rectangular virtual areas that the list view control uses to arrange its items.
Virtual List View	A virtual list view is a list view control that has the LVS_OWNERDATA style.

Figure 13    New Tab Control Features

New Feature	Description
Item States	Tab control items now support an item state to support the TCM_DESELECTALL message.
Extended Styles	Tab controls now support extended styles that allow the controls to have enhanced capabilities: TCS_EX_FLATSEPARATORS, TCS_EX_REGISTERDROP.
Structures Renamed	All structures used with tab controls have been renamed to conform with current naming conventions, while maintaining backward compatibility.

Figure 14    New Tree View Features

New Feature	Description
Tooltips	Tree view controls now automatically display tooltips when an item is not entirely within the view area.
New Item State	Tree view controls now support a new item state for parent items, TVIS_EXPANDPARTIAL. When a parent item is set to this state, the child items are displayed and the parent's plus sign remains visible.
Single-Click Expansion	The TVS_SINGLEEXPAND style causes a tree view item to be expanded when it becomes selected and to be closed when it becomes unselected.
Adjustable Maximum	The TVM_SETSCROLLTIME message
Scroll Time	allows you to set the maximum amount of time that a scroll operation can take.
Adjustable Borders	The TVM_SETBORDER message allows you to specify a border that will be displayed around the items in the tree view. This message allows you to specify separate x and y borders.

Figure 17    New Progress Bar Features

New Feature	Description
New Progress Bar Control Styles	Progress bar controls can now display progress information vertically, using the PBS_VERTICAL style. Also, a smooth progress mode is supported using the PBS_SMOOTH style (instead of segmented).
Extended Range Values	Progress bar controls now support 32-bit range values. To set range values in excess of 65,535, use the PBM_SETRANGE32 message.

Figure 18    New Property Sheet Features

New Feature	Description
New Notification	The PSN_GETOBJECT notification has been added to allow a page to be an OLE drop target.
Updated Structures	The PROPSHEETHEADER and PROPSHEETPAGE structures have been updated to support new features. See the references for these structures for more information.

Figure 19   New Header Control Features

New Feature	Description
Image Lists	New messages for this feature include HDM_GETIMAGELIST and HDM_SETIMAGELIST.
Callback Items	Currently, callback support includes header item text and images.
Custom Item Ordering	The new messages that support this feature are: HDM_GETORDERARRAY, HDM_SETORDERARRAY, and HDM_ORDERTOINDEX.
Drag and Drop	Drag and drop reordering of header Manipulation items is now available. Implement drag and drop support by including the HDS_DRAGDROP style when creating the control.
Hot Tracking	When this feature is enabled, the item that is under the pointer will be highlighted. To enable hot-tracking in a header control, create it with the HDS_HOTTRACK style.
Text, Bitmaps, and Images	Items can simultaneously display item text, a bitmap, and an image.

Figure 20   New Trackbar Control Features

New Feature	Description
Buddy Windows	Trackbar controls now provide support for up to two buddy windows. Trackbar buddy windows are automatically positioned by the control to appear centered at the ends of the trackbar control.
Tooltips	Trackbar controls now support tooltips. A trackbar creates a default tooltip control when created with the TBS_TOOLTIPS style.

Figure 21   New MFC Control Classes

Class	Description
CDateTimeCtrl	Allows the user to choose a specific date or time value.
CComboBoxEx	A combobox control with the ability to display images.
CMonthCalCtrl	Control that displays date information.
CIPAddressCtrl	Control for entering an IP address.
CRebarCtrl	Toolbar that can contain additional child windows in the form of controls.