Search found 1483 matches

by Alex
Mon Sep 29, 2008 8:46 am
Forum: VintaSoft Twain ActiveX Discussions
Topic: ask for next page with fladbled scanner
Replies: 3
Views: 9875

Re: ask for next page with fladbled scanner

Hello Sjaak, You should enable acquisition process in a loop if you want to acquire some pages from flatbed scanner. Here is an example: VSTwain1.appProductName = "MyTwainApplication" If VSTwain1.StartDevice() Then VSTwain1.SelectSource VSTwain1.showUI = False Dim scanAnotherPath As Boolean scanAnot...
by Alex
Wed Sep 24, 2008 2:18 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Stack Overflow exception in VintaSoft
Replies: 4
Views: 24251

Re: Stack Overflow exception in VintaSoft

Please ganerate a log-file of scanner's work and send it to us. Here are steps which you should do: 1. Set the IsLoggingEnabled property to True before the StartDevice method. 2. Set the path to log-file with the LogFilePath property if path "c:\vstwain.log" is not accessible by your application. 3....
by Alex
Wed Sep 24, 2008 8:37 am
Forum: VintaSoft Imaging .NET SDK and Plug-ins Discussions
Topic: Save updated multi-page tiff file
Replies: 1
Views: 6044

Re: Save updated multi-page tiff file

Hello,

Do you want to save all images loaded into the image viewer or rotated only? Please see our Image Viewer Demo which you can find in distributive package of the library.

Best regards, Alexander
by Alex
Wed Sep 24, 2008 8:35 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Stack Overflow exception in VintaSoft
Replies: 4
Views: 24251

Re: Stack Overflow exception in VintaSoft

Hello Sergey,

What version of VintaSoftTwain.NET Library do you use? Please try to use latest (4.2) version and let me know results. Also please send me a snippet of your code.

Best regards, Alexander
by Alex
Wed Sep 24, 2008 8:32 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Using VintaSoftTwain.NET Library in Vista x64.
Replies: 4
Views: 8833

Re: Using VintaSoftTwain.NET Library in Vista x64.

Please contact our support team at support@vintasoft.com with any questions regarding registrations of our products.
by Alex
Tue Sep 23, 2008 8:51 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Using VintaSoftTwain.NET Library in Vista x64.
Replies: 4
Views: 8833

Re: Using VintaSoftTwain.NET Library in Vista x64.

Hello, You should do the following steps: - Open the project in Visual Basic .NET 2008 - Open the "Build" menu - Select the "Select configuration manager..." and you will see the "Configuration Manager" window - Select "New..." in "Active solution platform" in the "Configuration Manager" window - Se...
by Alex
Tue Sep 23, 2008 8:39 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Save multiple pages into a single tif file
Replies: 2
Views: 5511

Re: Save multiple pages into a single tif file

Hello,

Please read description of the TiffMultiPage property in documentation. Also you can see example here: http://www.vintasoft.com/vstwain-dotnet ... fWithoutUi.

Best regards, Alexander
by Alex
Wed Sep 10, 2008 3:06 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Detect if scanner is connected?
Replies: 5
Views: 10032

Re: Detect if scanner is connected?

Yes, but you should specify correct exception type as follows:

Code: Select all

bScannerConneced = false;
Vintasoft.Twain.VSTwain td_Scanner = new Vintasoft.Twain.VSTwain();
try {
  td_Scanner.StartDevice();
  td_Scanner.OpenDataSource();
  bScannerConneced = true;
}
catch (TwainException)
{
}
by Alex
Wed Sep 10, 2008 10:27 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Detect if scanner is connected?
Replies: 5
Views: 10032

Re: Detect if scanner is connected?

Hello, TWAIN standard does not allow to detect if device is on-line or not. You should try to open the device if you want to check device status. Which scanner do you use? Some scanners send messages to application about their state (the power supply has been changed, the user has added a device, de...
by Alex
Thu Sep 04, 2008 5:28 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: VSTwain1_ImageAcquired And Viewer
Replies: 3
Views: 7175

Re: VSTwain1_ImageAcquired And Viewer

Hello Jeffrey, You should use the following code: Private Sub VSTwain1_ImageAcquired(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles VSTwain1.ImageAcquired ImageViewer1.Images.Add(New Bitmap(VSTwain1.GetImage(VSTwain1.NumImages - 1))) End Sub It's the best way at the moment. Further w...