Dialog box & Shut down window

The dialog box is a box that contain contains the function or functions to shutdown, suspend operation & restart the computer.

the dialog box displays a window containing buttons Ok that is to accept the function, Cancel to cancel the operation of the window and a button for help on the operation of the dialog box, also contains a small dropdown menu with options to shutdown, restart or suspend computer.

When we push  the button Ok, the team will proceed to perform any of the three functions is selected.

Too, when we clicking the Cancel button, the computer cancel any function generated by the window, 

and proceed to close the dialog box.

when to click on the Help button, the team showed another small window where we show the help, he can use that window.