Picture resizing

[Geoff Turner]

Hi all,
I have an application that requires me to load an image into
a picture or image or picclip control.Picture will be JPG format
and of size 800 X 600 pixels. It will be displayed as say, 200 X 100
pixels. Question: Is it possible to save the image as a 200 X 100 image,
or can I only save it as 800 X 600?
I have tried, using a picture control, 'SavePicture Picture1.Picture,
"qaz.jpg"'
which does not save the resize the image.
Any pointers or help would be gratefull.

Cheers,
GST

[Randy Birch]

The image will be saved at its original size. The scale property of the
image control is visual only. You'll need to load the image at the original
size, then call the stretchblt API with the size of the new image. This will
reduce the physical size. The problem is that while VB will allow you to
save an image in its original format (eg bitmap, gif, jpg), I believe that
VB will only save the new image as a bitmap ... pretty sure you'll need some
other 3rd party library to save the resized image in a format other than
bitmap. You might want to post to msnews.microsoft.com
public.vb.winapi.graphics for detailed advice and tips. And check the past
posts there --- lots of GDI-related info of value.

--

Randy Birch
MS MVP Visual Basic
http://vbnet.mvps.org/
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"Geoff Turner" <g.********@rl.ac.uk> wrote in message
news:dn**********@blackmamba.itd.rl.ac.uk...
: Hi all,
: I have an application that requires me to load an image into
: a picture or image or picclip control.Picture will be JPG format
: and of size 800 X 600 pixels. It will be displayed as say, 200 X 100
: pixels. Question: Is it possible to save the image as a 200 X 100 image,
: or can I only save it as 800 X 600?
: I have tried, using a picture control, 'SavePicture Picture1.Picture,
: "qaz.jpg"'
: which does not save the resize the image.
: Any pointers or help would be gratefull.
:
: Cheers,
: GST
:
:

[Dean Earley]

Geoff Turner wrote:

Hi all,
I have an application that requires me to load an image into
a picture or image or picclip control.Picture will be JPG format
and of size 800 X 600 pixels. It will be displayed as say, 200 X 100
pixels. Question: Is it possible to save the image as a 200 X 100 image,
or can I only save it as 800 X 600?
I have tried, using a picture control, 'SavePicture Picture1.Picture,
"qaz.jpg"'
which does not save the resize the image.
Any pointers or help would be gratefull.

set picturebox.picture = picturebox.image
then try SavePicture again.
ps, VB can't natively save as JPG, you will need to use IJL or some
other 3rd party library.

--
Dean Earley (de*********@icode.co.uk)
i-Catcher Development Team

iCode Systems