A bitmap image is a drawing object represented as an array of pixels (or dots), rather than as individual entities. A bitmap is treated as a single object that you can move, copy, and reshape. Because you can edit individual pixels in a bitmap, you can use bitmaps for vignettes and image blending.
You can create bitmaps with the Bitmap Editor, or import bitmaps from any other Windows-based bitmap editor.
In a runtime system, bitmaps are displayed differently to other objects. Bitmaps are mapped directly to the screen (that is, each pixel in the image corresponds to a pixel on the screen). Objects are stored as a series of instructions, and are drawn on the screen in the same order as they were drawn on the graphics page.