VintaSoft Twain .NET SDK v10.2
Vintasoft.Twain Namespace / DeviceCameraCollection Class
Members Example




In This Topic
    DeviceCameraCollection Class
    In This Topic
    Class that represents a collection of cameras supported by device.
    Object Model
    DeviceCameraCollection Class
    Syntax
    'Declaration
     
    Public Class DeviceCameraCollection 
    'Usage
     
    Dim instance As DeviceCameraCollection
    public class DeviceCameraCollection 
    public __gc class DeviceCameraCollection 
    public ref class DeviceCameraCollection 
    Example
    This example shows how to use Dual Stream feature of Kodak scanner.
    Private Shared Sub AcquiredImagesWithDualStream()
        ' create the device manager
        Using deviceManager As New DeviceManager()
            ' open the device manager
            deviceManager.Open()
                
            ' get reference to Kodak scanner
            Dim device As Device = deviceManager.Devices.Find("KODAK Scanner: i1410/i1420/i1440")
                
            ' disable UI
            device.ShowUI = False
                
            ' open device
            device.Open()
                
            ' set inches as units of measure
            device.UnitOfMeasure = UnitOfMeasure.Inches
            ' enable duplex
            device.DocumentFeeder.DuplexEnabled = True
                
            ' select color camera
            device.Cameras.SetSelectedCamera("/Camera_Color_Both")
            ' set resolution for color images
            device.Resolution = New Resolution(300, 300)
            ' enable color camera
            device.Cameras.EnableSelectedCamera()
                
            ' select black-white camera
            device.Cameras.SetSelectedCamera("/Camera_Bitonal_Both")
            ' set resolution for black-white images
            device.Resolution = New Resolution(200, 200)
            ' enable black-white camera
            device.Cameras.EnableSelectedCamera()
                
                
            ' modally acquire images from the scanner
            Dim acquireModalState1 As AcquireModalState = AcquireModalState.None
            Dim acquiredImageInfo As ImageInfo
            Do
                ' acquire image from scanner
                acquireModalState1 = device.AcquireModal()
                
                ' write information about acquired image
                If acquireModalState1 = AcquireModalState.ImageAcquired Then
                    ' get info about acquired image
                    acquiredImageInfo = device.AcquiredImage.ImageInfo
                    ' output info about acquired image
                    Console.WriteLine(acquiredImageInfo.PixelType.ToString() + " " + acquiredImageInfo.Resolution.ToString())
                
                    ' dispose the acquired image
                    device.AcquiredImage.Dispose()
                End If
            Loop While acquireModalState1 <> AcquireModalState.None
                
                
            ' close the device
            device.Close()
                
            ' close TWAIN device manager
            deviceManager.Close()
        End Using
    End Sub
    private static void AcquiredImagesWithDualStream()
    {
        // create the device manager
        using (DeviceManager deviceManager = new DeviceManager())
        {
            // open the device manager
            deviceManager.Open();
                
            // get reference to Kodak scanner
            Device device = deviceManager.Devices.Find("KODAK Scanner: i1410/i1420/i1440");
                
            // disable UI
            device.ShowUI = false;
                
            // open device
            device.Open();
                
            // set inches as units of measure
            device.UnitOfMeasure = UnitOfMeasure.Inches;
            // enable duplex
            device.DocumentFeeder.DuplexEnabled = true;
                
            // select color camera
            device.Cameras.SetSelectedCamera("/Camera_Color_Both");
            // set resolution for color images
            device.Resolution = new Resolution(300, 300);
            // enable color camera
            device.Cameras.EnableSelectedCamera();
                
            // select black-white camera
            device.Cameras.SetSelectedCamera("/Camera_Bitonal_Both");
            // set resolution for black-white images
            device.Resolution = new Resolution(200, 200);
            // enable black-white camera
            device.Cameras.EnableSelectedCamera();
                
                
            // modally acquire images from the scanner
            AcquireModalState acquireModalState = AcquireModalState.None;
            ImageInfo acquiredImageInfo;
            do
            {
                // acquire image from scanner
                acquireModalState = device.AcquireModal();
                
                // write information about acquired image
                if (acquireModalState == AcquireModalState.ImageAcquired)
                {
                    // get info about acquired image
                    acquiredImageInfo = device.AcquiredImage.ImageInfo;
                    // output info about acquired image
                    Console.WriteLine(acquiredImageInfo.PixelType.ToString() + " " + acquiredImageInfo.Resolution.ToString());
                
                    // dispose the acquired image
                    device.AcquiredImage.Dispose();
                }
            }
            while (acquireModalState != AcquireModalState.None);
                
            // close the device
            device.Close();
                
            // close TWAIN device manager
            deviceManager.Close();
        }
    }
    Inheritance Hierarchy

    System.Object
       Vintasoft.Twain.DeviceCameraCollection

    Requirements

    Target Platforms: Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2003

    See Also