Microsoft Foundation Class Library (MFC)

Visual Studio 6.0

The following MFC features are new for Visual C++ 6.0.

For MFC issues that may affect porting to Visual C++ 6.0, see .

Active Document Containment

provides a single frame in which to work with documents, instead of requiring you to create and use multiple application frames for each document type. It differs from basic OLE technology in that OLE works with embedded objects within a compound document in which only a single piece of content can be active. With Active Document Containment, you activate an entire document, that is, an entire application, including associated menus and toolbars, within the context of a single frame. AppWizard automates the MFC coding required for Active Document Containment. Active Document Containment is implemented by using the new class .

Dynamic HTML Control with CHtmlView

A new MFC class, , enables you to host Dynamic HTML within your MFC applications. CHtmlView allows your application's view to display HTML pages that contain Dynamic HTML just as a Web browser would display them. CHtmlView provides many browser features, including a history list, favorites (bookmarks), and security features. See .

Internet Explorer 4.0 Common Controls

MFC provides support for the latest Internet Explorer 4.0 common controls in classes such as , , , and . You can access these controls from the Controls toolbar in the Dialog editor. In addition to these new control classes, new functionality was added to most of the existing MFC common control classes. These modifications include flat toolbars, image list support for several control types (such as header, toolbar, and status bar controls), and new attributes. These new properties are also supported in the Dialog editor controls.

MFC Classes — New or Updated

Class Control Status Description
Extended combo box New Extends the combo box control by providing support for image lists.
Date and time picker New Supports either an extended edit control, or a simple calendar interface control, that allows a user to choose a specific date or time value.
Header Updated Supports drag-and-drop operations and bitmaps in a header control.
No New Supports a control for Web browsing within an application. The control supports Dynamic HTML in MFC.
No Updated Includes a new function for writing data to the server.
No Updated Includes new functions that provide control over the size of chunks written to the HTTP server.
Image list Updated Supports images used by other controls, for example, in header controls and list controls.
No Updated Supports setting cookies for a specified URL, returning cookies for a specified URL and all its parent URLs, and retrieving the variable specifying the length of the cookie stored in the buffer.
Address New Supports an edit box for manipulating an Internet Protocol (IP) address.
List Updated Supports the grouping of items using working areas. Also supports virtual list views.
No Updated Supports assigning or retrieving a default menu item on a specified menu, and retrieving information about a menu item.
Month calendar New Supports a simple calendar interface control that allows a user to select a date.
No Updated Contains a new function that retrieves a handle to an icon associated with the server of a particular CLSID.
No New Provides MFC OLE DB support for form views.
No New Supports active document containment.
No Updated Supports converting time information stored in the object to a Win32-compatible structure.
Progress Updated Supports smooth and vertical styles for progress controls.
No Updated Supports property sheets with stacked or scrolling tabs.
No New Supports the Wizard97 style of property sheets, available with Windows 98 and Windows NT 5.0.
No New Supports the Wizard97 style of property pages, available with Windows 98 and Windows NT 5.0.
No New Supports a toolbar that can contain additional child windows in the form of controls.
Rebar New Implements the internal control of the CRebar object.
Slider Updated Supports ToolTips in a slider control and additional slider control styles.
Spin button Updated Supports 32-bit ranges in a spin button control.
No Updated Supports ToolTips, icons, and background color in a status bar.
Status bar Updated Implements the internal control of the CStatusBar object.
No Updated Supports enhanced string finding, replacing, removing, inserting, deleting, and formatting.
Tab Updated Supports new styles for tab focus and appearance. Also supports inserting new tabs into an existing tab control.
No Updated Supports converting time information stored in the object to a Win32-compatible structure.
No Updated Supports Internet Explorer 4.0 flat and transparent toolbar styles.
Toolbar Updated Implements the internal control of the CToolBar object.
Tool tip Updated Implements updating of a ToolTip and its attributes.
Tree Updated Supports check boxes and automatic single-node expansion in a tree control.

For fixes and porting considerations, see in the Visual C++ Programmer's Guide.

MFC Globals — New

MFC contains two new globals. tests the passed SCODE to see if it is an error. This function can be used to check the return values of calls to OLE functions in your application. indicates the target of the dump output. This function can be used to generate an image of the current stack.

Wizard97 Style for Property Sheets

Wizard97 is a new wizard style for property sheets and property pages for Windows 98 and Windows NT 5.0. MFC implements this support in two new classes, and . These new classes support structures that are not compatible with and . The Wizard97 styles support background bitmaps and wide title headers, including subheaders, in a property page.

MFC OLE DB Class Added

The new class is an optional MFC class to wrap the OLE DB Consumer and Provider templates. This class incorporates the OLE DB templates into MFC. See AppWizard Enhancements and Data Access Support in the ATL Object Wizard.

MFC Performance Tuning

The static link size of the MFC library has been tuned.

New MFC Technical Notes

There are two new MFC technical notes: and .

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