window programming set 2 Detailed Explanation And More Example

Question : 1

Window class, onHScroll/3, defines

a) a window is moved to a new position

b) the user wants to view a floating popup menu for the window

c) an event from the vertical scrollbar of the window

d) an event from the horizontal scrollbar of the window

Question : 2

Window class, onInitPopupMenu/2, defines

a) a window is moved to a new position

b) the user wants to view a floating popup menu for the window

c) an event from the vertical scrollbar of the window

d) an event from the horizontal scrollbar of the window

Question : 3

Window class, onCreate/1 ,defines

a) is executed when a visible window is being created

b) is executed when a window is being closed, it is possible to prevent the window from closing

c) when the background of a window must be erased this event is executed

d) when a window must be re-painted this event is executed

Question : 4

Button in window programming

a) displays text and can be clicked with the mouse or spacebar

b) a checkmark which the user can select

c) a list from which one item can be selected.

d) area in which text may be entered.

Question : 5

Window class, onActivate/2, defines

a) is executed when a window is becoming visible or is being hidden

b) when a window is being disabled or enabled this event is executed

c) this event is executed when the user switches to another window of the same application

d) when a window receives the keyboard focus this event is executed

Question : 6

Window class, onMenuSelect/2, defines

a) during the processing of a key this event is executed with the ASCII value of the key pressed

b) a menu command was selected

c) a menu item is selected

d) a window was resized