Summary of various widths, heights, positions and distances in JS

1.window.screen

Browser-to-screen distance, ScreenX (screenleft), ScreenY (Screentop)

2.window.scrollto (x, y)

Move the vertical scroll bar to a position relative to the height of the form y pixels,

(0,0) to return to the top, move the scroll bar to the (0,0) position.

3.window.scrollby (x, y)

Moves the portrait (landscape) scrollbar to the position of y (x) pixels relative to the current vertical (horizontal) scrollbar height, as opposed to the current scroll bar, as an example: Y positive values Move down and negative values move upward. likewise x.

4.window. ScrollBars

Returns or sets whether the specified control has a vertical scroll bar, a horizontal scroll bar, or an integer at the same time. Read/write.

0-Unrealistic scroll bar (default)

1-Show horizontal scroll bar

2-Show vertical scroll bar

3-Display both horizontal and vertical scroll bars

　　When the wordwrap (set text wrap) property is set to True , the multiline control does not display a horizontal scroll bar. Most multiline controls do not use a horizontal scroll bar.