See information provided with the package. The bitmap program is a rudimentary tool for creating or editing rectangular images made up of 1's and 0's. Bitmaps are used in X for defining clipping regions, cursor shapes, icon shapes, and tile and stipple patterns.
Bitmap displays a grid in which each square represents a sin- gle bit in the picture being edited.
Squares can be set, cleared, or inverted directly with the buttons on the pointer and a menu of higher level operations such as draw line and fill circle is provided to the side of the grid. Actual size versions of the bitmap as it would appear nor- mally and inverted appear below the menu. If the bitmap is to be used for defining a cursor, one of the squares in the images may be designated as the hotspot. This determines where the cursor is actually pointing. Bitmaps are stored as small C code fragments suitable for including in applications.