November 1998
Intermediate to advanced
1520 pages
37h 53m
English
Content preview from Programming Windows®, Fifth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 14. Bitmaps and Bitblts
A bitmap is a two-dimensional rectangular array of bits that correspond to the pixels of an image. When real-world images are captured in bitmaps, the image is divided into a grid and the pixel is the sampling unit. The value of each pixel in the bitmap indicates the average color of the image within a unit of this grid. Monochrome bitmaps require only one bit per pixel; gray shade or color bitmaps require multiple bits per pixel.
Bitmaps represent one of two methods for storing pictorial information in a Windows program. The other form of stored pictorial information is the metafile, which I’ll cover in Chapter 18. A metafile is a description of a picture rather than a digital representation of it.
As I’ll discuss ...
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