Very Computer

by **BOCOsof** » Fri, 06 Aug 1999 04:00:00

Is there a way I could print an image stretched to fit the page?
How do I enlarge an image for printing?
Thanx.

by **Mike Shkolni** » Fri, 06 Aug 1999 04:00:00

Why not?

Printer.Canvas.StretchDraw(Rect(0, 0, Printer.PageWidth,
Printer.PageHeight), yourImage.Bitmap);

--
With best regards, Mike Shkolnik.
FIDO: 2:463/106.14

WEB: http://www.geocities.com/SiliconValley/Grid/3989

Quote:>Is there a way I could print an image stretched to fit the page?
>How do I enlarge an image for printing?
>Thanx.

by **Earl F. Glyn** » Fri, 06 Aug 1999 04:00:00

Quote:> Is there a way I could print an image stretched to fit the page?
> How do I enlarge an image for printing?

The StretchDIBits API call that you need to print a bitmap can do
what you're asking.

Take a look at the "Slide Show" Tech Note. This code shows
how to print a single image stretched to fit a page, or 10 rows
of images with 20 images per row (i.e., 200 images per page):
http://www.efg2.com/Lab/ImageProcessing/SlideShow.htm

___
efg

Overland Park, KS USA

efg's Computer Lab: http://www.efg2.com/Lab

by **Virtanen Ant** » Fri, 06 Aug 1999 04:00:00

>Why not?

>Printer.Canvas.StretchDraw(Rect(0, 0, Printer.PageWidth,
>Printer.PageHeight), yourImage.Bitmap);

Printer.Pagewidth and Printer.PageHeight lie sometimes.
Get the _working_ values thru getDeviceCaps by using
Printer.Canvas.Handle.

That's how I do it, and it works.

Antti Virtanen

by **Joe C. Hech** » Fri, 06 Aug 1999 04:00:00

> Why not?

> Printer.Canvas.StretchDraw(Rect(0, 0, Printer.PageWidth,
> Printer.PageHeight), yourImage.Bitmap);

Because using StretchDraw with a printer canvas results
in an illegal operation under Windows that most print
drivers cannot handle. Use StretchDIBits() instead.

Joe
--
Joe C. Hecht
http://home1.gte.net/joehecht/index.htm

by **Mike Mormand** » Sat, 07 Aug 1999 04:00:00

I know that's true in 16 bit windows, but I've not had a problem with it
using HP and Epson drivers in 95, 98, and NT, have I just been lucky?
Mike

>Because using StretchDraw with a printer canvas results
>in an illegal operation under Windows that most print
>drivers cannot handle. Use StretchDIBits() instead.

>Joe
>--
>Joe C. Hecht
>http://home1.gte.net/joehecht/index.htm

by **Steve Schafer (Tea** » Sat, 07 Aug 1999 04:00:00

Quote:>have I just been lucky?

Very much so. The problem manifests itself most frequently with color
printers.

-Steve

by **Joe C. Hech** » Sat, 07 Aug 1999 04:00:00

1) Win95/98 use 16 bit print drivers.

2) Under Win95/98, unless the Print driver has special
code to detect and workaround this error, you are just
plain lucky. Under NT, its still technically an error,
but *Windows* should correct for it (but apparently
does not always).

Joe

> I know that's true in 16 bit windows, but I've not had a problem with it
> using HP and Epson drivers in 95, 98, and NT, have I just been lucky?
> Mike

> >Because using StretchDraw with a printer canvas results
> >in an illegal operation under Windows that most print
> >drivers cannot handle. Use StretchDIBits() instead.

--
Joe C. Hecht
http://home1.gte.net/joehecht/index.htm

by **Mike Mormand** » Thu, 12 Aug 1999 04:00:00

Thanks to you and Joe for the important safety tips!
Mike

>Very much so. The problem manifests itself most frequently with color
>printers.

>-Steve

Very Computer

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?

Printing images like 'Fit to Page'?