Re: Convert picture box content to jpeg??

Steve:

I'm certianly not the sharpest tool in the wood shed, however, I downloaded
from the website and ran the .vbp, nothing happens?

I see grapes in 2 picture boxes but redraw does nothing?
I tried changing parameters, color, pixels, etc.

Did I miss somethng?
--
Thank you,

Randy


"Steve Barnett" wrote:

You might want to go have a look at:
http://www.Planet-Source-Code.com/vb/scripts/ShowCode.asp?txtCodeId=43004&lngWId=1

This describes the GDI+ functions and provides a sample app that does most
things you'll ever want to with GDI+. I adapted this code to save a picture
box to a png file, precisely for use on web pages. The relevant bit of code
comes down to:

'*** Initialise the graphics class based on the picture box with the dial
in it
Call GdipCreateFromHDC(picDial.hDC, Graphics) ' Initialize the graphics
class - required for all drawing

'*** Create the image "class" from the image in the picture box
PictureBox
Call GdipCreateBitmapFromHBITMAP(picDial.Image.Handle,
picDial.Image.hPal, img)

'*** Get the CLSID of the PNG encoder
encoderCLSID = GetEncoderClsid("image/png")

'*** Now save the file as a png. There are no parameters for png files
encoderParams.Count = 0
stat = GdipSaveImageToFile(img, fileName, encoderCLSID, encoderParams)

There are a few initialisation jobs to do as well as this, but they're all
covered in the sample files. I have to say, the results I obtained were
excellent (I also used GDI+ to write to the picture box, so got anti-alias
support).

You also have options for gif and jpeg files, if you prefer that format.

Steve


"Randy Gardner" <RandyGardner@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:B3086140-ADB7-4D65-B1E9-C3CCF4B11E83@xxxxxxxxxxxxxxxx
I want to take data (text & graphics) from a picture box and convert it to
a
jpeg for display on a website. HOW?

Is there a size issue, picture box and website display window?


--
Thank you,

Randy



.

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