Variables starting with `b' in src/od-win32

• bActive src/od-win32/win32.c:80
• blankdrive src/od-win32/win32gui.c:81
• blue_bits src/od-win32/win32gfx.c:741
• blue_shift src/od-win32/win32gfx.c:742
• break src/od-win32/win32gui.c:1313
• bytesinbuf src/od-win32/win32.h:54