window programming set 1 Detailed Explanation And More Example

Question : 1

Window class, onEraseBackground/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 : 2

Panels is

a) the exterior of a window.

b) the interior of a frame window

c) windows used for input/output that are placed on a panel window

d) None of these

Question : 3

Controls are

a) the exterior of a window.

b) the interior of a frame window.

c) windows used for input/output that are placed on a panel window

d) None of these

Question : 4

Window class, onMouseUp/5 , defines

a) the window wants to know what cursor it must display for the mouse pointer

b) the mouse is moved over a window

c) when a mouse button is pressed this event is executed

d) a mouse button is released

Question : 5

Window class, onSetCursor/3, defines

a) the window wants to know what cursor it must display for the mouse pointer

b) the mouse is moved over a window

c) when a mouse button is pressed this event is executed

d) a mouse button is released

Question : 6

Window class, onMouseDoubleClick/5, defines

a) a mouse button was double clicked

b) the user clicks on a window

c) a key on the keyboard is pressed

d) a key on the keyboard is released