Hello,
I have to develop an application which use Microsoft Fingerprint
Reader.
This device can be handled like a scanner? So can i use a class inside
Platform SDK or API? There are resources?
I only need to be able to capture images generated by the fingerprint
reader (i would have already an algorithm to compare 2 fingerprint
images).
If somebody could help me, or suggest me how i can move.
Best regards,
De Togni Luigino 5 27188
Hi,
I've no experience of fingerprint scanner, but if it works the same way as a
scanner you could try the following if you're using XP.
In your project, add a reference to Microsoft Windows Image Acquisition
Library v2.0.
To use the wizard to scan an image, try
WIA.CommonDialo g dialog = new WIA.CommonDialo gClass();
WIA.Device device = dialog.ShowSele ctDevice(
WIA.WiaDeviceTy pe.ScannerDevic eType, true, false);
dialog.ShowAcqu isitionWizard(d evice);
Alternatively, the following code allows you to scan the image and
programmically control where it is saved.
WIA.CommonDialo g dialog = new WIA.CommonDialo gClass();
WIA.ImageFile file = dialog.ShowAcqu ireImage(
WIA.WiaDeviceTy pe.ScannerDevic eType,
WIA.WiaImageInt ent.Unspecified Intent,
WIA.WiaImageBia s.MaximizeQuali ty,
WIA.FormatID.wi aFormatJPEG,
true, true, false);
file.SaveFile(@ "c:\myimage ." + file.FileExtens ion);
All the Best,
Phil.
"le*******@gmai l.com" wrote: Hello,
I have to develop an application which use Microsoft Fingerprint Reader. This device can be handled like a scanner? So can i use a class inside Platform SDK or API? There are resources? I only need to be able to capture images generated by the fingerprint reader (i would have already an algorithm to compare 2 fingerprint images).
If somebody could help me, or suggest me how i can move.
Best regards, De Togni Luigino
Thank you for your help, but your example is in .Net?
Sorry could you translate (or send me a link) to a C++ (or MFC Visual
c++) example?
Thank you.
Lewis
Phil Williams ha scritto: Hi, I've no experience of fingerprint scanner, but if it works the same way as a scanner you could try the following if you're using XP.
In your project, add a reference to Microsoft Windows Image Acquisition Library v2.0.
To use the wizard to scan an image, try
WIA.CommonDialo g dialog = new WIA.CommonDialo gClass(); WIA.Device device = dialog.ShowSele ctDevice( WIA.WiaDeviceTy pe.ScannerDevic eType, true, false); dialog.ShowAcqu isitionWizard(d evice);
Alternatively, the following code allows you to scan the image and programmically control where it is saved.
WIA.CommonDialo g dialog = new WIA.CommonDialo gClass(); WIA.ImageFile file = dialog.ShowAcqu ireImage( WIA.WiaDeviceTy pe.ScannerDevic eType, WIA.WiaImageInt ent.Unspecified Intent, WIA.WiaImageBia s.MaximizeQuali ty, WIA.FormatID.wi aFormatJPEG, true, true, false); file.SaveFile(@ "c:\myimage ." + file.FileExtens ion);
All the Best, Phil.
"le*******@gmai l.com" wrote:
Hello,
I have to develop an application which use Microsoft Fingerprint Reader. This device can be handled like a scanner? So can i use a class inside Platform SDK or API? There are resources? I only need to be able to capture images generated by the fingerprint reader (i would have already an algorithm to compare 2 fingerprint images).
If somebody could help me, or suggest me how i can move.
Best regards, De Togni Luigino
As this is a .Net forum, I had assumed you required a .Net example (the
example was c#).
Please find below a c++ (.Net) example below. It I have time, I will post a
MFC example later.
// Using the wizard
Interop::WIA::C ommonDialog * dialog = new Interop::WIA::C ommonDialogClas s();
Interop::WIA::D evice * device = dialog->ShowSelectDevi ce(
Interop::WIA::W iaDeviceType::S cannerDeviceTyp e, true, true);
if (device)
{
dialog->ShowAcquisitio nWizard(device) ;
}
// Without the wizard
Interop::WIA::C ommonDialog * dialog = new Interop::WIA::C ommonDialogClas s();
Interop::WIA::I mageFile * file = dialog->ShowAcquireIma ge(
Interop::WIA::W iaDeviceType::S cannerDeviceTyp e,
Interop::WIA::W iaImageIntent:: UnspecifiedInte nt,
Interop::WIA::W iaImageBias::Ma ximizeQuality,
Interop::WIA::F ormatID::wiaFor matJPEG,
true, true, false);
if (file)
{
System::Text::S tringBuilder * fileName =
new System::Text::S tringBuilder("c :\\myimage.");
fileName->Append(file->FileExtension) ;
file->SaveFile(fileN ame->ToString());
}
Regards,
Phil.
"lewix" wrote: Thank you for your help, but your example is in .Net? Sorry could you translate (or send me a link) to a C++ (or MFC Visual c++) example?
Thank you.
Lewis
Phil Williams ha scritto:
Hi, I've no experience of fingerprint scanner, but if it works the same way as a scanner you could try the following if you're using XP.
In your project, add a reference to Microsoft Windows Image Acquisition Library v2.0.
To use the wizard to scan an image, try
WIA.CommonDialo g dialog = new WIA.CommonDialo gClass(); WIA.Device device = dialog.ShowSele ctDevice( WIA.WiaDeviceTy pe.ScannerDevic eType, true, false); dialog.ShowAcqu isitionWizard(d evice);
Alternatively, the following code allows you to scan the image and programmically control where it is saved.
WIA.CommonDialo g dialog = new WIA.CommonDialo gClass(); WIA.ImageFile file = dialog.ShowAcqu ireImage( WIA.WiaDeviceTy pe.ScannerDevic eType, WIA.WiaImageInt ent.Unspecified Intent, WIA.WiaImageBia s.MaximizeQuali ty, WIA.FormatID.wi aFormatJPEG, true, true, false); file.SaveFile(@ "c:\myimage ." + file.FileExtens ion);
All the Best, Phil.
"le*******@gmai l.com" wrote:
Hello,
I have to develop an application which use Microsoft Fingerprint Reader. This device can be handled like a scanner? So can i use a class inside Platform SDK or API? There are resources? I only need to be able to capture images generated by the fingerprint reader (i would have already an algorithm to compare 2 fingerprint images).
If somebody could help me, or suggest me how i can move.
Best regards, De Togni Luigino
Many many thanks Phil,
i know C#, but i have been developing an MFC application for 9 months,
so i forget some things about C#. I have to re-study :)
OK now i try the code you suggested me, if in future you will have time
to write it in MFC i will appreciate.
Thanx,
Lewix
The guys at www.griaule.com has a FREE SDK that supports the MS Fingerprint
Reader, just download it. There's a sample (with source code in many
languages, including C# e C++.NET).
"le*******@gmai l.com" wrote: Hello,
I have to develop an application which use Microsoft Fingerprint Reader. This device can be handled like a scanner? So can i use a class inside Platform SDK or API? There are resources? I only need to be able to capture images generated by the fingerprint reader (i would have already an algorithm to compare 2 fingerprint images).
If somebody could help me, or suggest me how i can move.
Best regards, De Togni Luigino
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I have to develop an application which use Microsoft Fingerprint
Reader.
This device can be handled like a scanner? So can i use a class inside
Platform SDK or API? There are resources?
I only need to be able to capture images generated by the fingerprint
reader (i would have already an algorithm to compare 2 fingerprint
images).
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