Re: Clipboard reduces the resolution of the copied image

From:

"Jonathan Wood" <jwood@softcircuits.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 13 Sep 2008 10:30:59 -0600

Message-ID:

<#PyOc4bFJHA.224@TK2MSFTNGP06.phx.gbl>

I can't tell you what is happening but it is not the clipboard that is
changing anything. The clipboard only stores whatever data is placed there.

The first thing I'd do is try pasing into some different applications. You
gave very little description of how you determined the resolution was
reduced. What application did you paste it to??? Try pasting it to some
higher-end graphics application and see if the same thing happens. If you
can confirm that what is in the clipboard is really not the expected
resolution, then you need to look more closely at what you are storing
there.

The clipboard won't be modifying the resolution of an image stored there.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"curious" <rajayyala@gmail.com> wrote in message
news:67898333-8b1d-4e75-a7dc-b8784cae00a8@59g2000hsb.googlegroups.com...

Hi,

I apologize if this is the wrong forum to post this question. I am
not
sure which would be the best forum to post this question. Please
advise me if this is not the right forum.

Now my question. I have an Image being copied over to Clipboard using
Windows SetClipBoardData(UINT nFormat, HANDLE hMem) call.
The original Image has a resolution of 300 DPI. But, the Image being
copied over to the Clipboard has 86 DPI only. Incidentally, this
matches my monitor screen resolution as well.
I am saving the Image as a BITMAP ( by passing in CF_BITMAP as the
"nFormat" parameter value to the above SetClipBoardData() call. When
I
set the "nFormat" as CF_TIFF instead of CF_BITMAP, Clipboard gives an
error that the format is in binary and it cannot copy the file. The
exact error when CF_TIFF used is:
"The information is in a binary format. Clipbook viewer cannot
display
this format. To view the information, try pasting it into a
document."

Can anyone please let me know how I would be able to keep the image
resolution when copying over to the clipboard?
Or am I doing anything wrong?

Thanks in advance