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How to write C# program using WIA Automation 2.0 to support MultiFeed Scanner

Guest Tom G.

By Guest Tom G.
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Guest Tom G.

Guest Tom G.

Posted
Posted

I am working on a project right now that needs to be able to scan in

multiple pages using a scanner's multi feed feature. The scanner that

I am using to test is Fujitsu fi-5120C.

 

I am coding this project in C# and am trying to use WIA Automation 2.0

Library. I am open to alternative technologies if someone has any

suggestions.

 

My test case is that I have three sheets of paper in the document

feeder and I want my code to scan in all three pages at once.

 

All the pages get scanned correctly when I call the following code:

 

private void CallScanWizard()

{

 

WIA.CommonDialog dlg = new WIA.CommonDialog();

 

Device dvc =

dlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType,true,false);

 

if (dvc != null)

{

dlg.ShowAcquisitionWizard(dvc);

}

}

 

This tells me that it is possible in WIA. However, this can't be the

solution for me. I don't want the user to have to pick a file path

for the images to be saved to. I want to work with them in memory

only.

 

So I tried the following code:

 

private const int WIA_DPS_DOCUMENT_HANDLING_SELECT_FEEDER = 1;

private const int WIA_DPS_DOCUMENT_HANDLING_SELECT_FLATBED =

2;

private const int WIA_IPS_PAGES = 3096;

 

private const int WIA_DPS_DOCUMENT_HANDLING_STATUS_FEED_READY

= 1;

 

private const int WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS =

1024;

private const int WIA_PROPERTIES_WIA_DIP_FIRST = 2;

private const int WIA_PROPERTIES_WIA_DPA_FIRST =

WIA_PROPERTIES_WIA_DIP_FIRST +

WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

private const int WIA_PROPERTIES_WIA_DPC_FIRST =

WIA_PROPERTIES_WIA_DPA_FIRST +

WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

 

private const int WIA_PROPERTIES_WIA_DPS_FIRST =

WIA_PROPERTIES_WIA_DPC_FIRST +

WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

private const int

WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_STATUS =

WIA_PROPERTIES_WIA_DPS_FIRST + 13;

private const int

WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_SELECT =

WIA_PROPERTIES_WIA_DPS_FIRST + 14;

private const string WIA_DPS_DOCUMENT_HANDLING_STATUS_STR =

"Document Handling Status";

 

private const double WIA_ERRORS_BASE_VAL_WIA_ERROR =

2149646336;

private const double WIA_ERRORS_WIA_ERROR_PAPER_EMPTY =

WIA_ERRORS_BASE_VAL_WIA_ERROR + 3;

 

private const int WIA_IPS_CUR_INTENT = 6146;

private const int WIA_IPS_XRES = 6147;

private const int WIA_IPS_YRES = 6148;

 

private const int WIA_INTENT_NONE = 0x00000000;

private const int WIA_INTENT_IMAGE_TYPE_COLOR = 0x00000001;

private const int WIA_INTENT_IMAGE_TYPE_GRAYSCALE =

0x00000002;

private const int WIA_INTENT_IMAGE_TYPE_TEXT = 0x00000004;

private const int WIA_INTENT_IMAGE_TYPE_MASK = 0x0000000F;

private const int WIA_INTENT_MINIMIZE_SIZE = 0x00010000;

private const int WIA_INTENT_MAXIMIZE_QUALITY = 0x00020000;

private const int WIA_INTENT_BEST_PREVIEW = 0x00040000;

private const int WIA_INTENT_SIZE_MASK = 0x000F0000;

private const int FEED_READY = 0x01;

 

private const string wiaFormatPNG =

"{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}";

private void TestScan()

{

DeviceManager manager = new DeviceManager();

object index = 1;

 

DeviceInfo info = manager.DeviceInfos.get_Item(ref index);

Device dvc = info.Connect();

object res = 150;

object intent = WIA_INTENT_IMAGE_TYPE_COLOR;

object statusProp = WIA_DPS_DOCUMENT_HANDLING_STATUS_STR;

int documentStatus = 0;

object pgs = 0;

object handler = WIA_DPS_DOCUMENT_HANDLING_SELECT_FEEDER;

 

foreach (Property p in dvc.Properties)

{

switch (p.PropertyID)

{

case

WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_SELECT:

p.set_Value(ref handler);

break;

 

case WIA_IPS_XRES:

case WIA_IPS_YRES:

p.set_Value(ref res);

break;

 

case WIA_IPS_CUR_INTENT:

p.set_Value(ref intent);

break;

 

case

WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_STATUS:

documentStatus = (int)p.get_Value();

break;

 

case WIA_IPS_PAGES:

p.set_Value(ref pgs);

break;

}

}

 

foreach (Item itm in dvc.Items)

{

while ((documentStatus & FEED_READY) == FEED_READY)

{

itm.Transfer(wiaFormatPNG);

documentStatus = (int)dvc.Properties.get_Item(ref

statusProp).get_Value();

}

}

}

 

I got this code idea from http://www.xtremevbtalk.com/showthread.php?t=288758.

However, the DOCUMENT HANDLING STATUS always stays 5 even when all the

pages are scanned through. This eventually ends in a com exception

being thrown when all the pages have been scanned. I could just throw

a try catch around the whole thing but that doesn't seem right to me.

I don't like it.

 

Does anyone have any suggestions for me? This code needs to work

regardless of what scanner is being used. Is WIA the wrong choice

here? Should I go right to TWAIN code?

 

Thanks in advance for any help anyone can give me.

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Guest Rich

Guest Rich

Posted
Posted

Re: How to write C# program using WIA Automation 2.0 to support Multi Feed Scanner

 

Re: How to write C# program using WIA Automation 2.0 to support Multi Feed Scanner

 

It's gotta be this line:

 

private const int WIA_INTENT_NONE = 0x00000000;

 

 

If it isn't I'm wrong! Or maybe this is the wrong group?

 

 

Good luck, Rich

 

 

"Tom G." <tgrant@healthcareone.info> wrote in message

news:7c70c281-a55c-4f47-99f1-d635afd247cc@n75g2000hsh.googlegroups.com...

>I am working on a project right now that needs to be able to scan in

> multiple pages using a scanner's multi feed feature. The scanner that

> I am using to test is Fujitsu fi-5120C.

>

> I am coding this project in C# and am trying to use WIA Automation 2.0

> Library. I am open to alternative technologies if someone has any

> suggestions.

>

> My test case is that I have three sheets of paper in the document

> feeder and I want my code to scan in all three pages at once.

>

> All the pages get scanned correctly when I call the following code:

>

> private void CallScanWizard()

> {

>

> WIA.CommonDialog dlg = new WIA.CommonDialog();

>

> Device dvc =

> dlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType,true,false);

>

> if (dvc != null)

> {

> dlg.ShowAcquisitionWizard(dvc);

> }

> }

>

> This tells me that it is possible in WIA. However, this can't be the

> solution for me. I don't want the user to have to pick a file path

> for the images to be saved to. I want to work with them in memory

> only.

>

> So I tried the following code:

>

> private const int WIA_DPS_DOCUMENT_HANDLING_SELECT_FEEDER = 1;

> private const int WIA_DPS_DOCUMENT_HANDLING_SELECT_FLATBED =

> 2;

> private const int WIA_IPS_PAGES = 3096;

>

> private const int WIA_DPS_DOCUMENT_HANDLING_STATUS_FEED_READY

> = 1;

>

> private const int WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS =

> 1024;

> private const int WIA_PROPERTIES_WIA_DIP_FIRST = 2;

> private const int WIA_PROPERTIES_WIA_DPA_FIRST =

> WIA_PROPERTIES_WIA_DIP_FIRST +

> WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

> private const int WIA_PROPERTIES_WIA_DPC_FIRST =

> WIA_PROPERTIES_WIA_DPA_FIRST +

> WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

>

> private const int WIA_PROPERTIES_WIA_DPS_FIRST =

> WIA_PROPERTIES_WIA_DPC_FIRST +

> WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

> private const int

> WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_STATUS =

> WIA_PROPERTIES_WIA_DPS_FIRST + 13;

> private const int

> WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_SELECT =

> WIA_PROPERTIES_WIA_DPS_FIRST + 14;

> private const string WIA_DPS_DOCUMENT_HANDLING_STATUS_STR =

> "Document Handling Status";

>

> private const double WIA_ERRORS_BASE_VAL_WIA_ERROR =

> 2149646336;

> private const double WIA_ERRORS_WIA_ERROR_PAPER_EMPTY =

> WIA_ERRORS_BASE_VAL_WIA_ERROR + 3;

>

> private const int WIA_IPS_CUR_INTENT = 6146;

> private const int WIA_IPS_XRES = 6147;

> private const int WIA_IPS_YRES = 6148;

>

> private const int WIA_INTENT_NONE = 0x00000000;

> private const int WIA_INTENT_IMAGE_TYPE_COLOR = 0x00000001;

> private const int WIA_INTENT_IMAGE_TYPE_GRAYSCALE =

> 0x00000002;

> private const int WIA_INTENT_IMAGE_TYPE_TEXT = 0x00000004;

> private const int WIA_INTENT_IMAGE_TYPE_MASK = 0x0000000F;

> private const int WIA_INTENT_MINIMIZE_SIZE = 0x00010000;

> private const int WIA_INTENT_MAXIMIZE_QUALITY = 0x00020000;

> private const int WIA_INTENT_BEST_PREVIEW = 0x00040000;

> private const int WIA_INTENT_SIZE_MASK = 0x000F0000;

> private const int FEED_READY = 0x01;

>

> private const string wiaFormatPNG =

> "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}";

> private void TestScan()

> {

> DeviceManager manager = new DeviceManager();

> object index = 1;

>

> DeviceInfo info = manager.DeviceInfos.get_Item(ref index);

> Device dvc = info.Connect();

> object res = 150;

> object intent = WIA_INTENT_IMAGE_TYPE_COLOR;

> object statusProp = WIA_DPS_DOCUMENT_HANDLING_STATUS_STR;

> int documentStatus = 0;

> object pgs = 0;

> object handler = WIA_DPS_DOCUMENT_HANDLING_SELECT_FEEDER;

>

> foreach (Property p in dvc.Properties)

> {

> switch (p.PropertyID)

> {

> case

> WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_SELECT:

> p.set_Value(ref handler);

> break;

>

> case WIA_IPS_XRES:

> case WIA_IPS_YRES:

> p.set_Value(ref res);

> break;

>

> case WIA_IPS_CUR_INTENT:

> p.set_Value(ref intent);

> break;

>

> case

> WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_STATUS:

> documentStatus = (int)p.get_Value();

> break;

>

> case WIA_IPS_PAGES:

> p.set_Value(ref pgs);

> break;

> }

> }

>

> foreach (Item itm in dvc.Items)

> {

> while ((documentStatus & FEED_READY) == FEED_READY)

> {

> itm.Transfer(wiaFormatPNG);

> documentStatus = (int)dvc.Properties.get_Item(ref

> statusProp).get_Value();

> }

> }

> }

>

> I got this code idea from

> http://www.xtremevbtalk.com/showthread.php?t=288758.

> However, the DOCUMENT HANDLING STATUS always stays 5 even when all the

> pages are scanned through. This eventually ends in a com exception

> being thrown when all the pages have been scanned. I could just throw

> a try catch around the whole thing but that doesn't seem right to me.

> I don't like it.

>

> Does anyone have any suggestions for me? This code needs to work

> regardless of what scanner is being used. Is WIA the wrong choice

> here? Should I go right to TWAIN code?

>

> Thanks in advance for any help anyone can give me.

>

Guest Tom G.

Guest Tom G.

Posted
Posted

Re: How to write C# program using WIA Automation 2.0 to support MultiFeed Scanner

 

On Feb 29, 5:10 pm, "Rich" <dontbotherme@localhost> wrote:

> It's gotta be this line:

>

> private const int WIA_INTENT_NONE = 0x00000000;

>

> If it isn't I'm wrong! Or maybe this is the wrong group?

>

> Good luck, Rich

>

> "Tom G." <tgr...@healthcareone.info> wrote in message

>

> news:7c70c281-a55c-4f47-99f1-d635afd247cc@n75g2000hsh.googlegroups.com...

>

>

>

> >I am working on a project right now that needs to be able to scan in

> > multiple pages using a scanner's multi feed feature.  The scanner that

> > I am using to test is Fujitsu fi-5120C.

>

> > I am coding this project in C# and am trying to use WIA Automation 2.0

> > Library.  I am open to alternative technologies if someone has any

> > suggestions.

>

> > My test case is that I have three sheets of paper in the document

> > feeder and I want my code to scan in all three pages at once.

>

> > All the pages get scanned correctly when I call the following code:

>

> >        private void CallScanWizard()

> >        {

>

> >            WIA.CommonDialog dlg = new WIA.CommonDialog();

>

> >            Device dvc =

> > dlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType,true,false);

>

> >            if (dvc != null)

> >            {

> >                dlg.ShowAcquisitionWizard(dvc);

> >            }

> >        }

>

> > This tells me that it is possible in WIA.  However, this can't be the

> > solution for me.  I don't want the user to have to pick a file path

> > for the images to be saved to.  I want to work with them in memory

> > only.

>

> > So I tried the following code:

>

> > private const int WIA_DPS_DOCUMENT_HANDLING_SELECT_FEEDER = 1;

> >        private const int WIA_DPS_DOCUMENT_HANDLING_SELECT_FLATBED =

> > 2;

> >        private const int WIA_IPS_PAGES = 3096;

>

> >        private const int WIA_DPS_DOCUMENT_HANDLING_STATUS_FEED_READY

> > = 1;

>

> >        private const int WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS =

> > 1024;

> >        private const int WIA_PROPERTIES_WIA_DIP_FIRST = 2;

> >        private const int WIA_PROPERTIES_WIA_DPA_FIRST =

> > WIA_PROPERTIES_WIA_DIP_FIRST +

> > WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

> >        private const int WIA_PROPERTIES_WIA_DPC_FIRST =

> > WIA_PROPERTIES_WIA_DPA_FIRST +

> > WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

>

> >        private const int WIA_PROPERTIES_WIA_DPS_FIRST =

> > WIA_PROPERTIES_WIA_DPC_FIRST +

> > WIA_PROPERTIES_WIA_RESERVED_FOR_NEW_PROPS;

> >        private const int

> > WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_STATUS =

> > WIA_PROPERTIES_WIA_DPS_FIRST + 13;

> >        private const int

> > WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_SELECT =

> > WIA_PROPERTIES_WIA_DPS_FIRST + 14;

> >        private const string WIA_DPS_DOCUMENT_HANDLING_STATUS_STR =

> > "Document Handling Status";

>

> >        private const double WIA_ERRORS_BASE_VAL_WIA_ERROR =

> > 2149646336;

> >        private const double WIA_ERRORS_WIA_ERROR_PAPER_EMPTY =

> > WIA_ERRORS_BASE_VAL_WIA_ERROR + 3;

>

> >        private const int WIA_IPS_CUR_INTENT = 6146;

> >        private const int WIA_IPS_XRES = 6147;

> >        private const int WIA_IPS_YRES = 6148;

>

> >        private const int WIA_INTENT_NONE = 0x00000000;

> >        private const int WIA_INTENT_IMAGE_TYPE_COLOR = 0x00000001;

> >        private const int WIA_INTENT_IMAGE_TYPE_GRAYSCALE =

> > 0x00000002;

> >        private const int WIA_INTENT_IMAGE_TYPE_TEXT = 0x00000004;

> >        private const int WIA_INTENT_IMAGE_TYPE_MASK = 0x0000000F;

> >        private const int WIA_INTENT_MINIMIZE_SIZE = 0x00010000;

> >        private const int WIA_INTENT_MAXIMIZE_QUALITY = 0x00020000;

> >        private const int WIA_INTENT_BEST_PREVIEW = 0x00040000;

> >        private const int WIA_INTENT_SIZE_MASK = 0x000F0000;

> >        private const int FEED_READY = 0x01;

>

> >        private const string wiaFormatPNG =

> > "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}";

> >      private void TestScan()

> >        {

> >            DeviceManager manager = new DeviceManager();

> >            object index = 1;

>

> >            DeviceInfo info = manager.DeviceInfos.get_Item(ref index);

> >            Device dvc = info.Connect();

> >            object res = 150;

> >            object intent = WIA_INTENT_IMAGE_TYPE_COLOR;

> >            object statusProp = WIA_DPS_DOCUMENT_HANDLING_STATUS_STR;

> >            int documentStatus = 0;

> >            object pgs = 0;

> >            object handler = WIA_DPS_DOCUMENT_HANDLING_SELECT_FEEDER;

>

> >            foreach (Property p in dvc.Properties)

> >            {

> >                switch (p.PropertyID)

> >                {

> >                    case

> > WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_SELECT:

> >                        p.set_Value(ref handler);

> >                        break;

>

> >                    case WIA_IPS_XRES:

> >                    case WIA_IPS_YRES:

> >                        p.set_Value(ref res);

> >                        break;

>

> >                    case WIA_IPS_CUR_INTENT:

> >                        p.set_Value(ref intent);

> >                        break;

>

> >                    case

> > WIA_PROPERTIES_WIA_DPS_DOCUMENT_HANDLING_STATUS:

> >                        documentStatus = (int)p..get_Value();

> >                        break;

>

> >                    case WIA_IPS_PAGES:

> >                        p.set_Value(ref pgs);

> >                        break;

> >                }

> >            }

>

> >            foreach (Item itm in dvc.Items)

> >            {

> >                while ((documentStatus & FEED_READY) == FEED_READY)

> >                {

> >                    itm.Transfer(wiaFormatPNG);

> >                    documentStatus = (int)dvc.Properties.get_Item(ref

> > statusProp).get_Value();

> >                }

> >            }

> >        }

>

> > I got this code idea from

> >http://www.xtremevbtalk.com/showthread.php?t=288758.

> > However, the DOCUMENT HANDLING STATUS always stays 5 even when all the

> > pages are scanned through.  This eventually ends in a com exception

> > being thrown when all the pages have been scanned.  I could just throw

> > a try catch around the whole thing but that doesn't seem right to me.

> > I don't like it.

>

> > Does anyone have any suggestions for me?  This code needs to work

> > regardless of what scanner is being used.  Is WIA the wrong choice

> > here?  Should I go right to TWAIN code?

>

> > Thanks in advance for any help anyone can give me.- Hide quoted text -

>

> - Show quoted text -

 

I am not sure why you are referencing that line. What is wrong with

private const int WIA_INTENT_NONE = 0x00000000;? You think that

somehow applies to the Document Handling Status remaining 5 even with

no paper in the tray?

 

Wrong group? Do you mean that I have posted to the wrong group? I

picked this group for two reasons. When I did a google search on this

topic, I got the most hits in this news group. The second reason is

that this group has a lot of activity. Is there a better group to

post to?

 

Thanks for you reply.

 

Tom

Guest Jim

Guest Jim

Posted
Posted

Re: How to write C# program using WIA Automation 2.0 to support Multi Feed Scanner

 

Re: How to write C# program using WIA Automation 2.0 to support Multi Feed Scanner

 

 

"Tom G." <tgrant@healthcareone.info> wrote in message

news:9a600dd5-bd70-4a3a-83ba-28b005c6141f@2g2000hsn.googlegroups.com...

<snip>

 

Wrong group? Do you mean that I have posted to the wrong group? I

picked this group for two reasons. When I did a google search on this

topic, I got the most hits in this news group. The second reason is

that this group has a lot of activity. Is there a better group to

post to?

 

Thanks for you reply.

 

Tom

 

 

Yes, you posted to one of many wrong groups. You have a programming

problem, but most people here are not

programmers. The number of hits isn't especially important. What is

important is the context.

Jim

Guest Bill in Co.

Guest Bill in Co.

Posted
Posted

Re: How to write C# program using WIA Automation 2.0 to support Multi Feed Scanner

 

Re: How to write C# program using WIA Automation 2.0 to support Multi Feed Scanner

 

There are several microsoft programming newsgroups, if you just look at the

headers.

 

Jim wrote:

> "Tom G." <tgrant@healthcareone.info> wrote in message

> news:9a600dd5-bd70-4a3a-83ba-28b005c6141f@2g2000hsn.googlegroups.com...

> <snip>

>

> Wrong group? Do you mean that I have posted to the wrong group? I

> picked this group for two reasons. When I did a google search on this

> topic, I got the most hits in this news group. The second reason is

> that this group has a lot of activity. Is there a better group to

> post to?

>

> Thanks for you reply.

>

> Tom

>

>

> Yes, you posted to one of many wrong groups. You have a programming

> problem, but most people here are not

> programmers. The number of hits isn't especially important. What is

> important is the context.

> Jim

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