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CHAPTER 5 Bitmap Editor


This chapter will discuss the Bitmap Editor.

This chapter will cover

Using bitmaps within a Spotlet

A Bitmap is a simple black and white picture which can be displayed in the Palm OS Platform. Bitmaps can be any height, but must be a multiple of 16 pixels wide.

A Spotlet can draw bitmaps in several ways. One way is to use the kjava Graphics object to draw a bitmap directly on the screen of the Palm OS Platform Emulator. The following code fragment will draw a Bitmap, assuming that the integers "left" and "top" and the Bitmap "bitmap" have already been set up. (Simplicity defines g as a reference to the kjava Graphics object in every Spotlet.)

g.drawBitmap(left, top, bitmap);

However, most users will want to use a Bitmap in a different way: as the picture for a button. When a button is created, it can be given a Bitmap which it will draw instead of a label. A third way of using a Bitmap is as an icon for the application on the Palm OS Platform.


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