469,271 Members | 1,484 Online
Bytes | Developer Community
New Post

Home Posts Topics Members FAQ

Post your question to a community of 469,271 developers. It's quick & easy.

twain drivers

Hi

Can you point me articles concerning
using of twain drivers for grabbing
image from camera.

Thanks
Konrad
Jul 19 '05 #1
3 12588
..NET has no (not yet?) classes for imaging devices...

You have to use [heavy] PInvoke/Interop with the Win32 Imaging APIs or
any (third-party) COM-Components

check my TWAIN C# sample:
http://www.codeproject.com/dotnet/twaindotnet.asp

or for Windows XP only, my WIA Scripting sample
http://www.codeproject.com/dotnet/wi...tingdotnet.asp
(For XP SP1, there is a new WIA-Automation component)

PLEASE NOTE:
my samples just show the very basic Interop technology,
are NOT complete and you have to understand TWAIN / WIA!

And there is 'Managed C++', you can use it to
write wrappers for any classic Win32/C++ code:
http://msdn.microsoft.com/library/en...rp12192002.asp
Or check third-party (I did not test any):
http://www.accusoft.com/imaging/imagegear/igp_about.asp
http://www.accusoft.com/imaging/imag...ig_netbeta.asp
http://www.leadtools.com/home2/VertMkts/LTDotNET.htm
http://www.pegasusimaging.com/twainpro.htm
http://www.data-tech.com/Products/ImageMan/imaging.asp
http://www.cfdev.com/activescan/
http://www.dosadi.com/

--
Thomas Scheidegger - MVP .NET - 'NETMaster'
http://www.cetus-links.org/oo_dotnet.html - http://dnetmaster.net/
Jul 19 '05 #2
Thanku you very much for answer.
On one of links you point me I have found
well twain driver but is little problem.
I want to grab picture on disk and if I run
example program which call function
acquire there is dialog of my camera displayed
and only from it I can grab image.
I wish that after calling acquire I have
picture on disk.
How to avoid displaing my camera dialog
window?

Thanks
Konrad

"Thomas Scheidegger [MVP]" <sp************@swissonline.ch> wrote in message
news:#S**************@TK2MSFTNGP11.phx.gbl...
.NET has no (not yet?) classes for imaging devices...

You have to use [heavy] PInvoke/Interop with the Win32 Imaging APIs or
any (third-party) COM-Components

check my TWAIN C# sample:
http://www.codeproject.com/dotnet/twaindotnet.asp

or for Windows XP only, my WIA Scripting sample
http://www.codeproject.com/dotnet/wi...tingdotnet.asp
(For XP SP1, there is a new WIA-Automation component)

PLEASE NOTE:
my samples just show the very basic Interop technology,
are NOT complete and you have to understand TWAIN / WIA!

And there is 'Managed C++', you can use it to
write wrappers for any classic Win32/C++ code:
http://msdn.microsoft.com/library/en...rp12192002.asp
Or check third-party (I did not test any):
http://www.accusoft.com/imaging/imagegear/igp_about.asp
http://www.accusoft.com/imaging/imag...ig_netbeta.asp
http://www.leadtools.com/home2/VertMkts/LTDotNET.htm
http://www.pegasusimaging.com/twainpro.htm
http://www.data-tech.com/Products/ImageMan/imaging.asp
http://www.cfdev.com/activescan/
http://www.dosadi.com/

--
Thomas Scheidegger - MVP .NET - 'NETMaster'
http://www.cetus-links.org/oo_dotnet.html - http://dnetmaster.net/

Jul 19 '05 #3
> How to avoid displaing my camera dialog window?

The TWAIN specification document has:
DG_CONTROL / DAT_USERINTERFACE / MSG_ENABLEDS (ShowUI == FALSE)
but maybe it doesn't work for all devices.
Note again, you have to understand the TWAIN specifications
to use/extend my samples....


--
Thomas Scheidegger - MVP .NET - 'NETMaster'
http://www.cetus-links.org/oo_dotnet.html - http://dnetmaster.net/
Jul 19 '05 #4

This discussion thread is closed

Replies have been disabled for this discussion.

Similar topics

reply views Thread by ren | last post: by
reply views Thread by Mikael Olofsson | last post: by
4 posts views Thread by Chuck Rewood | last post: by
2 posts views Thread by samuabreu | last post: by
1 post views Thread by Diogo Alves - Software Developer | last post: by
3 posts views Thread by Konrad | last post: by
4 posts views Thread by Dustin Davis | last post: by
3 posts views Thread by =?Utf-8?B?UmljYXJkbyBGdXJ0YWRv?= | last post: by
1 post views Thread by =?Utf-8?B?UmljYXJkbyBGdXJ0YWRv?= | last post: by
1 post views Thread by CARIGAR | last post: by
reply views Thread by zhoujie | last post: by
reply views Thread by suresh191 | last post: by
By using this site, you agree to our Privacy Policy and Terms of Use.