This illustration shows a screen capture of the ComboBoxSample application. Its user interface contains several UI controls arranged in rows.

The first row contains two combo boxes indicated by the labels To and Priority. The To combo box contains the following email address:

The Priority combo box has the Low item selected.

The second row contains the Subject field with the text "Test."

The third row is the text area with the following text: "This is a test message..."

A Send button is at the bottom of the screen.