Chapter 19. Adding Graphics to Forms and Reports
One of the principal incentives for using a Windows desktop database manager is the ability to display graphic images contained in (or linked to) database tables. Early Windows RDBMSs could display images stored in individual bitmapped graphic files with common formats such as .bmp, .pcx, and .tif, but they could not store the bitmap data within the database file.
A few publishers enhanced some of these early desktop database products with Binary Large OBject (BLOB) field data types. A BLOB field is of variable length and can hold any type of data, regardless of its format. Other Windows desktop RDBMSs use auxiliary files (similar to dBASE's .dbt memo files) to store graphic images and other types ...
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