The Debug toolbar (shown in Figure 15-25) contains shortcuts to several debugging commands, including the step commands. Some of the buttons and commands are enabled only in break mode.

Figure 15-25. The Debug toolbar

The first set of buttons on the toolbar is the Start Debugging, Break All, Stop Debugging, and Restart buttons. The next set of buttons is the Show Next Statement, Step Into, Step Over, and Step Out buttons. The Show Next Statement button repositions the window (if necessary) to display the next statement to be executed. This statement is highlighted in yellow and marked with a yellow arrow in the left-most (shaded) column. Next is the Hexadecimal button, which toggles the values in the debug windows between decimal format and hexadecimal format. The Show Threads In Source button follows, which adds an icon to the left margin that highlights each thread that is running. The final button is a drop-down list that displays a menu of debug commands.