Toolbar

Once connected, you will find a toolbar that looks like the one above on the top of the Screen Sharing.

Find the behaviour of each one of the toolbar options below:

Refresh	Press refresh to request a screen refresh.
Pause/Play	Press pause to freeze the screen image. This will not disconnect your session but you will not receive the screen image of the remote desktop. Press play to resume the remote screen viewing.
Keyboard	Displays the keyboard options.
Ctrl + Alt + Del	Sends this keyboard combination to the remote desktop because if you press this it will be interpreted by the local machine.
Ctrl + Esc	Sends this keyboard combination to the remote desktop because if you press this it will be interpreted by the local machine.
Remote Keyboard Layout	Toggle this option on a off to use the local or remote keyboard layout.
Help	Displays a list of shortcuts you can use to send key combinations to the remote screen.

The Options menu

Control	Toggle mouse control on and off. When mouse control is off you will not be able to use the mouse in the remote screen.
Scale	Press to scale the remote screen to the current size of the browser. Press 'Scale' again to show the remote screen unscaled, using the remote screen resolution specified in the Display Preferences.
Colors	Choose '256 colors' or 'Full color' for the remote screen image. This can affect the bandwidth used.
Settings	Access the Thinfinity® VNC settings in a popup above the remote desktop.

The Disconnect menu

Press 'Disconnect' to end your screen sharing session.