Most of the features of the Internet Explorer toolbar are actually implemented in the individual bands. For example, you can implement toolbar customization to enable the user to add, move, or delete buttons on a toolbar. Since each band contains a control, you can provide additional flexibility through the control's API. The following screen shot from Microsoft Internet Explorer 6 shows the menu that is displayed when part of the standard toolbar is covered. When a user clicks the chevron, a menu is displayed that allows him or her to use the hidden tools. If you set the RBBS_USECHEVRON flag in the fStyle member of the band's REBARBANDINFO structure, a chevron will be displayed for toolbars that have been covered. Version 5.80 of the common controls provides a way to make tools that have been covered by another band accessible to the user. Some of the tools might be covered by the adjacent band. If the combined width of the bands on a strip exceeds the width of the window, the rebar control will adjust their widths as needed. Typically, applications enable users to select which bands they want to have displayed through the View menu or a shortcut menu. If all the bands are removed from a strip, the height of the rebar will be reduced, enlarging the viewing area.Īn application can add or remove bands as needed. The rebar control then changes the display to accommodate the new arrangement of bands.

Users can move the bands within the rebar's display rectangle by dragging and dropping.

By dragging the gripper to the left or right, users can control how much space is allocated to each band. Grippers are used when two or more bands on a single strip exceed the width of the window.

Each band usually has a gripper at its left edge.

Each band can be on a separate strip, or multiple bands can be placed on the same strip.Ī rebar control provides users with two ways to arrange their tools: This rectangle is subdivided into one or more strips that are the height of a band. The rebar control displays its bands in a rectangular area, typically at the top of the window. Each rebar contains one or more bands, which are typically long, narrow rectangles that contain a child window, commonly a toolbar control. This control provides a way for users to customize the arrangement of a collection of tools. The underlying structure of the Internet Explorer toolbar is provided by a rebar control.

Internet explorer command bar