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Capturing screenshot of a window

Hi,

Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.

Note: I want the snapshot of the window even when it's not visible.
And, I work in "C#".

An example: http://www.developerfusion.co.uk/show/4630/

Dec 12 '06 #1
15 9743
Another source-
http://www.codeproject.com/csharp/screen_capturing.asp

I think, the problem is that if the window is minimized or off the
screen, or if it is on another desktop which is not active (visible),
then the screen shot is not correct. Either its screenshot of the
active window or it is black bar.
Can anyone advise how to take correct screen shot even if the window is
not the active and foremost one?

Thanks a million!

Dec 12 '06 #2
Nayan wrote:
Hi,

Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.

Note: I want the snapshot of the window even when it's not visible.
When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you
like, though.
And, I work in "C#".

An example: http://www.developerfusion.co.uk/show/4630/

--
Larry Lard
la*******@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version
Dec 12 '06 #3
I wonder if this is still true in Windows Vista since it is possible to show
thumbnail views of the application in the taskbar even if the application is
minimized.

Gabriel Lozano-Morán
The .NET Aficionado
http://www.pointerx.net

"Larry Lard" <la*******@goog lemail.comwrote in message
news:4u******** *****@mid.indiv idual.net...
Nayan wrote:
>Hi,

Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.

Note: I want the snapshot of the window even when it's not visible.

When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you like,
though.
>And, I work in "C#".

An example: http://www.developerfusion.co.uk/show/4630/


--
Larry Lard
la*******@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version

Dec 12 '06 #4
Bart De Smet wouldn't be Bart De Smet if he didn't blog about this. He has a
great blog post on this:
http://bartdesmet.net/blogs/bart/arc...0/05/4495.aspx

Gabriel Lozano-Morán
The .NET Aficionado
http://www.pointerx.net

"Gabriel Lozano-Morán" <ab***@frontbri dge.comwrote in message
news:el******** ******@TK2MSFTN GP04.phx.gbl...
>I wonder if this is still true in Windows Vista since it is possible to
show thumbnail views of the application in the taskbar even if the
application is minimized.

Gabriel Lozano-Morán
The .NET Aficionado
http://www.pointerx.net

"Larry Lard" <la*******@goog lemail.comwrote in message
news:4u******** *****@mid.indiv idual.net...
>Nayan wrote:
>>Hi,

Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.

Note: I want the snapshot of the window even when it's not visible.

When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you like,
though.
>>And, I work in "C#".

An example: http://www.developerfusion.co.uk/show/4630/


--
Larry Lard
la*******@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version


Dec 12 '06 #5
Yes,, since its possible to see the thumbnail (I remember that
"Powertoys for Windows XP" can do the same on XP), is there a way in
XP?

Thanks!
Nayan

On Dec 12, 6:49 pm, "Gabriel Lozano-Morán" <a...@frontbrid ge.com>
wrote:
I wonder if this is still true in Windows Vista since it is possible to show
thumbnail views of the application in the taskbar even if the applicationis
minimized.

Gabriel Lozano-Morán
The .NET Aficionadohttp://www.pointerx.ne t

"Larry Lard" <larryl...@goog lemail.comwrote in messagenews:4u* ************@mi d.individual.ne t...
Nayan wrote:
Hi,
Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.
Note: I want the snapshot of the window even when it's not visible.
When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you like,
though.
And, I work in "C#".
An example:http://www.developerfusion.co.uk/show/4630/
--
Larry Lard
larryl...@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version
Dec 12 '06 #6
This is great.. but I am working in XP.

Just to get the image of app, i won't like to install Vista :-/

Any help.. please?

Thanks a bunch!
Nayan

On Dec 12, 6:56 pm, "Gabriel Lozano-Morán" <a...@frontbrid ge.com>
wrote:
Bart De Smet wouldn't be Bart De Smet if he didn't blog about this. He has a
great blog post on this:http://bartdesmet.net/blogs/bart/arc...0/05/4495.aspx

Gabriel Lozano-Morán
The .NET Aficionadohttp://www.pointerx.ne t

"Gabriel Lozano-Morán" <a...@frontbrid ge.comwrote in messagenews:el* *************@T K2MSFTNGP04.phx .gbl...
I wonder if this is still true in Windows Vista since it is possible to
show thumbnail views of the application in the taskbar even if the
application is minimized.
Gabriel Lozano-Morán
The .NET Aficionado
http://www.pointerx.net
"Larry Lard" <larryl...@goog lemail.comwrote in message
news:4u******** *****@mid.indiv idual.net...
Nayan wrote:
Hi,
>Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.
>Note: I want the snapshot of the window even when it's not visible.
When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you like,
though.
>And, I work in "C#".
>An example:http://www.developerfusion.co.uk/show/4630/
--
Larry Lard
larryl...@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version
Dec 12 '06 #7
I am sorry that I can't help you but here is another nice example of what
you are looking for:
http://www.visualtasktips.com/

Gabriel

"Nayan" <cn****@gmail.c omwrote in message
news:11******** *************@n 67g2000cwd.goog legroups.com...
Yes,, since its possible to see the thumbnail (I remember that
"Powertoys for Windows XP" can do the same on XP), is there a way in
XP?

Thanks!
Nayan

On Dec 12, 6:49 pm, "Gabriel Lozano-Morán" <a...@frontbrid ge.com>
wrote:
I wonder if this is still true in Windows Vista since it is possible to
show
thumbnail views of the application in the taskbar even if the application
is
minimized.

Gabriel Lozano-Morán
The .NET Aficionadohttp://www.pointerx.ne t

"Larry Lard" <larryl...@goog lemail.comwrote in
messagenews:4u* ************@mi d.individual.ne t...
Nayan wrote:
Hi,
Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.
Note: I want the snapshot of the window even when it's not visible.
When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you
like,
though.
And, I work in "C#".
An example:http://www.developerfusion.co.uk/show/4630/
--
Larry Lard
larryl...@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version

Dec 12 '06 #8
To be honest I don't think that it is possible in Windows XP with minimized
windows.

Gabriel

"Nayan" <cn****@gmail.c omwrote in message
news:11******** *************@n 67g2000cwd.goog legroups.com...
Yes,, since its possible to see the thumbnail (I remember that
"Powertoys for Windows XP" can do the same on XP), is there a way in
XP?

Thanks!
Nayan

On Dec 12, 6:49 pm, "Gabriel Lozano-Morán" <a...@frontbrid ge.com>
wrote:
I wonder if this is still true in Windows Vista since it is possible to
show
thumbnail views of the application in the taskbar even if the application
is
minimized.

Gabriel Lozano-Morán
The .NET Aficionadohttp://www.pointerx.ne t

"Larry Lard" <larryl...@goog lemail.comwrote in
messagenews:4u* ************@mi d.individual.ne t...
Nayan wrote:
Hi,
Can anyone suggest working sample of capturing a window's picture?
I tried a few, but couldn't get the image. I don't know why those
functions are not getting the image.
Note: I want the snapshot of the window even when it's not visible.
When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you
like,
though.
And, I work in "C#".
An example:http://www.developerfusion.co.uk/show/4630/
--
Larry Lard
larryl...@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version

Dec 12 '06 #9
Thanks a lot, Gabriel!

I think, I should put the window in front, take a shot and restore back
to its state :)

But if i put the window out of visible area of the screen (the window
is still in front) can i capture the window correctly ?

Thx
Nayan

On Dec 12, 7:54 pm, "Gabriel Lozano-Morán" <a...@frontbrid ge.com>
wrote:
To be honest I don't think that it is possible in Windows XP with minimized
windows.

Gabriel

"Nayan" <cna...@gmail.c omwrote in messagenews:11* *************** *****@n67g2000c wd.googlegroups .com...
Yes,, since its possible to see the thumbnail (I remember that
"Powertoys for Windows XP" can do the same on XP), is there a way in
XP?

Thanks!
Nayan

On Dec 12, 6:49 pm, "Gabriel Lozano-Morán" <a...@frontbrid ge.com>
wrote:
I wonder if this is still true in Windows Vista since it is possible to
show
thumbnail views of the application in the taskbar even if the application
is
minimized.
Gabriel Lozano-Morán
The .NET Aficionadohttp://www.pointerx.ne t
"Larry Lard" <larryl...@goog lemail.comwrote in
messagenews:4u* ************@mi d.individual.ne t...
Nayan wrote:
>Hi,
>Can anyone suggest working sample of capturing a window's picture?
>I tried a few, but couldn't get the image. I don't know why those
>functions are not getting the image.
>Note: I want the snapshot of the window even when it's not visible.
When the window isn't visible, its image doesn't really exist. See
<http://blogs.msdn.com/oldnewthing/archive/2005/06/24/432229.aspxfor
more info; the information there might be at a lower level than you
like,
though.
>And, I work in "C#".
>An example:http://www.developerfusion.co.uk/show/4630/
--
Larry Lard
larryl...@googl email.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version
Dec 12 '06 #10

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