### 3.1 The MFC GUI on Windows ¶

The MFC GUI window has the usual elements of a Windows application: menu bar, a ribbon and a status bar. We will briefy discuss these here and give a more detailed description in Usage Reference.

You can use the scrollbars to navigate around in the chart. You can also grab the chart by the mouse and drag it (if not all of it fits into the window).

You can also reposition the pane of the internal editor and the error list by clicking on their title bar and dragging them to a new location. On the example above, the internal editor has been moved to the right side from the left (which is the default). You can even create floating windows out of these panes.

If you accidentally close the internal editor, use the ‘`Text Editors...`’ button on the ribbon and re-select ‘`Internal Editor`’.