
Why Use Justification?
Newton Is a Family of Products
Each Newton family member runs the Newton operating system. The particular hardware characteristics are not guaranteed--not size, weight, number of PC card slots, and certainly not screen size. So, if you want applications you create for the Newton to display correctly, don't assume a fixed screen size. Using the view justification tools provided, you can write your applications so that they will display correctly even in the face of such unknowns.
Note:
The size of the Newton MessagePad and MessagePad 100 is 240 x 336 pixels, an unusual choice. The MessagePad 110, 120, and 130 have a screen size of 240 x 320 pixels, one-quarter of the common 640 x 480 screen size. The MessagePad 2000 and eMate 300 have a screen size of 320 x 480 pixels, one-half of the common 640 x 480 screen size. Using a common screen size reduces costs.
By using justification correctly, you can ensure that your views will display differently based on the screen size of the Newton.
An online version of Programming for the Newton using Macintosh, 2nd ed. ©1996, 1994, Julie McKeehan and Neil Rhodes.
Last modified: 1 DEC 1996