Gets or sets image resolution properties for the current data source.
Syntax
Property Value
TwainImageResolutionProperties structure contains Image effects data class.
Example
Visual Basic | Copy Code |
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Public Sub twainSession_SetProperty(ByVal sender As Object, ByVal e As TwainSetPropertyEventArgs)
Dim msg As String = String.Format("Capability %d\nStatus = %d", e.Capability, e.Status)
e.Stop = False
End Sub
Public Sub ImageResolutionPropertyExample(ByVal parent As IWin32Window)
Try
Dim session As TwainSession = New TwainSession()
session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None)
session.EnableSetPropertyEvent = True
AddHandler session.SetProperty, AddressOf twainSession_SetProperty
Dim props As TwainProperties = session.Properties
Dim imageRes As TwainImageResolutionProperties = props.ImageResolution
imageRes.UnitOfResolution = TwainImageUnit.Inches
imageRes.BitsPerPixel = 1
imageRes.HorizontalResolution = 150
imageRes.VerticalResolution = 150
imageRes.XScaling = 1
imageRes.YScaling = 1
imageRes.RotationAngle = 90
imageRes.LeftMargin = 0
imageRes.RightMargin = 0
imageRes.TopMargin = 200
imageRes.BottomMargin = 200
props.EnableAutoFeed = True
props.MaximumNumberOfPages = -1
Dim buffer As String = String.Format("Duplex state = {0}", session.DuplexScanningMode.ToString())
MessageBox.Show(buffer)
props.ImageResolution = imageRes
session.Properties = props
session.Shutdown()
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub |
C# | Copy Code |
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void session_SetProperty(object sender, TwainSetPropertyEventArgs e)
{
string msg = string.Format("Capability %d\nStatus = %d", e.Capability, e.Status);
e.Stop = false;
}
public void ImageResolutionPropertyExample(IWin32Window parent)
{
try
{
TwainSession session = new TwainSession();
session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None);
session.EnableSetPropertyEvent = true;
session.SetProperty += new EventHandler<TwainSetPropertyEventArgs>(session_SetProperty);
TwainProperties props = session.Properties;
TwainImageResolutionProperties imageRes = props.ImageResolution;
imageRes.UnitOfResolution = TwainImageUnit.Inches;
imageRes.BitsPerPixel = 1;
imageRes.HorizontalResolution = 150;
imageRes.VerticalResolution = 150;
imageRes.XScaling = 1;
imageRes.YScaling = 1;
imageRes.RotationAngle = 90;
imageRes.LeftMargin = 0;
imageRes.RightMargin = 0;
imageRes.TopMargin = 200;
imageRes.BottomMargin = 200;
props.EnableAutoFeed = true;
props.MaximumNumberOfPages = -1;
string buffer = string.Format("Duplex state = {0}", session.DuplexScanningMode.ToString());
MessageBox.Show(buffer);
props.ImageResolution = imageRes;
session.Properties = props;
session.Shutdown();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
} |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
See Also