If no GIF is given, gif2bgi will try to read a GIF file from stdin.
Quiet mode. Default off on MSDOS, on under UNIX. Controls printout
of running scan lines. Use -q- to invert.
[-d BGI Directory]
Where we should look for default drivers (as supplied by Borland).
For example '-d c:/tc/bgi'.
Specifies a user-defined BGI driver. If for example
you have a BGI driver for your special vga called MYVGA.BGI and you want
to run it in mode 2, then type '-u c:/tc/bgi/myvga.2'. Note the absolute
path to the driver must be specified. Also note that we use '/' and not
'\' so they won't be treated as options.
Sets zoom factor of the view. Zoom factor should be
power of 2 up to 256. Default is 1 (no zoom).
Print one line of command-line help, similar to Usage above.
Once the image is displayed, the gif2bgi program goes into interactive mode
which recognizes the following commands:
C - get Color and position
In this submenu, a cursor appears and the location and color of the
pixel underneath it are printed. The 4 arrows may be used (shifted for
faster movement) to move the cursor. Any other key will abort this submode.
D - zoom Down
Zoom down by factor of 2 unless current zoom factor is 1.
R - Redraw
Redraw the image.
S - print Status
Print status of image and program.
U - zoom Up
Zoom up by factor of 2 unless current zoom factor is 256.
The 4 arrow keys can be used to pan in the desired direction, if the image
overflows in that direction. If the image fits into the screen, arrow
keys are ignored. The panning steps are 1/2 screen if not on image end.
SPC - abort
Space bar may be used to abort current image drawing.
ESC - abort
Escape may be used to abort current image drawing.
This program is useless in a Unix environment and is not normally
No color quantization is used in this program; thus, if a GIF image has more
colors than the BGI driver support, this program will abort.
This driver is optimized for drivers with one byte per pixel (256 colors)
and will run MUCH faster on such drivers.
For some reason I could not figure out, on my ATI wonder card, int 10h call
10h (AH = AL = 10h) to set the color registers sometimes result with wrong
colors. Direct access of the card registers gives correct results.