VintaSoft Imaging .NET SDK 14.0: Документация для .NET разработчика
Vintasoft.Imaging.Media Namespace / DirectShowCameraControlProperties Class
Члены типа Объект Синтаксис Example Иерархия Требования Смотрите также
В этом разделе
    Класс DirectShowCameraControlProperties
    В этом разделе
    Обеспечивает доступ к свойствам управления камерой.
    Объектная модель
    DirectShowCameraControlPropertyValue DirectShowCameraControlPropertyValue DirectShowCameraControlPropertyValue DirectShowCameraControlPropertyValue DirectShowCameraControlPropertyValue DirectShowCameraControlPropertyValue DirectShowCameraControlPropertyValue DirectShowCameraControlProperties
    Синтаксис
    'Declaration
    
    Public Class DirectShowCameraControlProperties
    
    
    public class DirectShowCameraControlProperties
    
    
    public __gc class DirectShowCameraControlProperties
    
    
    public ref class DirectShowCameraControlProperties
    
    
    Пример

    Вот C#/VB.NET код, который демонстрирует, как получить и задать свойства управления DirectShow-камерой:

    
    ''' <summary>
    ''' Gets and sets the camera control properties of DirectShow camera.
    ''' </summary>
    Public Shared Sub GetAndSetCameraControlProperties()
        ' get a list of installed cameras
        Dim captureDevices As System.Collections.ObjectModel.ReadOnlyCollection(Of Vintasoft.Imaging.Media.ImageCaptureDevice) = Vintasoft.Imaging.Media.ImageCaptureDeviceConfiguration.GetCaptureDevices()
    
        ' if cameras are not found
        If captureDevices.Count = 0 Then
            System.Console.WriteLine("No connected devices.")
            Return
        End If
    
        ' get the first available camera
        Dim camera As Vintasoft.Imaging.Media.DirectShowCamera = DirectCast(captureDevices(0), Vintasoft.Imaging.Media.DirectShowCamera)
        ' output camera name
        System.Console.WriteLine(camera.FriendlyName)
    
    
        Dim propertyValue As Vintasoft.Imaging.Media.DirectShowCameraControlPropertyValue
        Dim minValue As Integer, maxValue As Integer, [step] As Integer, defaultValue As Integer
    
        System.Console.WriteLine(" - Exposure")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedExposureValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Exposure
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Exposure = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    
        System.Console.WriteLine(" - Focus")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedFocusValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Focus
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Focus = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    
        System.Console.WriteLine(" - Iris")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedIrisValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Iris
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Iris = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    
        System.Console.WriteLine(" - Pan")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedPanValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Pan
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Pan = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    
        System.Console.WriteLine(" - Roll")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedRollValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Roll
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Roll = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    
        System.Console.WriteLine(" - Tilt")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedTiltValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Tilt
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Tilt = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    
        System.Console.WriteLine(" - Zoom")
        Try
            ' get supported values
            camera.CameraControl.GetSupportedZoomValues(minValue, maxValue, [step], defaultValue)
            System.Console.WriteLine(String.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", minValue, maxValue, [step], defaultValue))
    
            ' get current value
            propertyValue = camera.CameraControl.Zoom
            System.Console.WriteLine(String.Format("   - Current value: {0}", propertyValue.Value))
    
            ' set current value
            camera.CameraControl.Zoom = propertyValue
        Catch ex As System.Exception
            System.Console.WriteLine("    {0}", ex.Message)
        End Try
    End Sub
    
    
    
    /// <summary>
    /// Gets and sets the camera control properties of DirectShow camera.
    /// </summary>
    public static void GetAndSetCameraControlProperties()
    {
        // get a list of installed cameras
        System.Collections.ObjectModel.ReadOnlyCollection<Vintasoft.Imaging.Media.ImageCaptureDevice> captureDevices = 
            Vintasoft.Imaging.Media.ImageCaptureDeviceConfiguration.GetCaptureDevices();
    
        // if cameras are not found
        if (captureDevices.Count == 0)
        {
            System.Console.WriteLine("No connected devices.");
            return;
        }
    
        // get the first available camera
        Vintasoft.Imaging.Media.DirectShowCamera camera = (Vintasoft.Imaging.Media.DirectShowCamera)captureDevices[0];
        // output camera name
        System.Console.WriteLine(camera.FriendlyName);
    
    
        Vintasoft.Imaging.Media.DirectShowCameraControlPropertyValue propertyValue;
        int minValue, maxValue, step, defaultValue;
    
        System.Console.WriteLine(" - Exposure");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedExposureValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Exposure;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Exposure = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    
        System.Console.WriteLine(" - Focus");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedFocusValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Focus;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Focus = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    
        System.Console.WriteLine(" - Iris");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedIrisValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Iris;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Iris = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    
        System.Console.WriteLine(" - Pan");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedPanValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Pan;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Pan = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    
        System.Console.WriteLine(" - Roll");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedRollValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Roll;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Roll = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    
        System.Console.WriteLine(" - Tilt");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedTiltValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Tilt;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Tilt = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    
        System.Console.WriteLine(" - Zoom");
        try
        {
            // get supported values
            camera.CameraControl.GetSupportedZoomValues(out minValue, out maxValue, out step, out defaultValue);
            System.Console.WriteLine(string.Format("   - Supported values: Min={0}, Max={1}, Step={2}, Default={3}", 
                minValue, maxValue, step, defaultValue));
    
            // get current value
            propertyValue = camera.CameraControl.Zoom;
            System.Console.WriteLine(string.Format("   - Current value: {0}", propertyValue.Value));
    
            // set current value
            camera.CameraControl.Zoom = propertyValue;
        }
        catch (System.Exception ex)
        {
            System.Console.WriteLine("    {0}", ex.Message);
        }
    }
    
    

    Иерархия наследования

    System.Object
       Vintasoft.Imaging.Media.DirectShowCameraControlProperties

    Требования

    Целевые платформы: .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

    Смотрите также