printing graphics screens

[Adrian Camacho]

i am new using PB3.5 and maybe this question is so easy to you,
i made a program where i use VIEW to define an area on the screen,
this area is used to made a graphic of dispertion using coordinates
unitedes by a line each pair of coordinates,and i would
like to know how could i send this information to my printer.
Maybe something like LPRINT is to PRINT.


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[Mel Bishop]

Well, LPRINT is to the printer what PRINT is to the monitor.
Just make sure you have a printer attached to your LPT port.
DOS programs can't get to USB port(s) so if you have a USB
printer, you'll have to look elsewhere (maybe Lance's DOSPRINT).

In as far as dumping a graphics screen to printer, good luck.
The only way that I can think to do it would be to read the
screen pixels, put the data into a string$ (in accordance with
your printer specifications) then LPRINT the string to your
printer.


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[wolfgang miller]

Adrian,

To print a graphics screen you would need to load graphics.com first.
You can use a DOS shell command, or load it when DOS starts-up.

You can even call interupt 5 to print.

Graphics.com should be in the DOS directory.

Regards,

Wolfgang

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[Davide Vecchi]

check this post to see if it can help you: http://www.powerbasic.com/support/pb...ead.php?t=1240
i didn't read it deeply though.

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davide vecchi
[email protected]

[Lance Edmonds]

Uh, that's <U>this</U> topic, Davide.

GRAPHICS.COM is fine but only if your printer supports DOS -- that is, a USB or Windows-only printer will sink you.

A more flexible way would be to save the screen as a BITMAP file, and then print it from a windows app (or print to *ANY* printer from your DOS app using a product like my DOSPRINT utility. Note: DOSPRINT supports about six different image file formats such as PCX, JPG, etc, so you are not limited to BMP).

Source code to create a bitmap from a DOS graphics screen can be found at www.allbasiccode.com

You might also find some useful stuff in the DOS GRAPHICS area at http://www.powerbasic.com/files/pub/pbdos/graphics/

I hope this helps!


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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[Davide Vecchi]

aarggghh... it had to be
http://www.powerbasic.com/support/pb...read.php?t=298

i hope i didn't push anyone into an endless loop

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davide vecchi
[email protected]

[Jonathan Simpson]

Well, heres a cool trick that works with some of the HP printers...
It's useless for on the fly images, but if you can create an image
in advance and know what printer will be used, you can try this.
It should work with all printers, but I've had problems with a few.
First things first, you install a new printer using the driver for your
target printer, but set the port to "file". Then print your graphic (from paint or wherever)
using that printer. Choose an appropriate file name. Next, open the file
in edit, or notepad... or create a program which does the next step for you.
Finally, remove the LAST chr$(12) (form feed) from the file.

You now have a driver created image of... your image. Without the form feed,
it should print where you tell it to, so you can print text before and after it.
This is great for adding a signature or logo to a form that you will
print out on a known printer.



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Jonathan Simpson

[Jonathan Simpson]

Wanted to add... like I said, it DOES NOT always work, but it usually works,
especially on older printers that are not Host based. It works on some
host based printers as well. But be warned, if it does not work, you
better have the printers power button or cord ready to go


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Jonathan Simpson