PageOrientation Property (Device)

In This Topic

Gets or sets the orientation of images for current scan session.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration

Public Property PageOrientation As PageOrientation

public PageOrientation PageOrientation { get; set; }

public: __property PageOrientation get_PageOrientation();
public: __property void set_PageOrientation(
   PageOrientation value
);

public:
property PageOrientation PageOrientation {
   PageOrientation get();
   void set(PageOrientation value);
}

Exceptions

Exception	Description
TwainInvalidStateException	Thrown if device is in wrong state.
TwainDeviceCapabilityException	Thrown if device does not support capability.
DebuggerException	Thrown if the .NET debugger is used and the function evaluation requires all threads to run.

Remarks

Call this property only when device is opened (DeviceState == DeviceState.Opened).

Example

This C#/VB.NET code shows how to acquire A4 black-white images from the device.

VB.NET


Public Sub ScanPage(device As Vintasoft.Twain.Device)
        device.ShowUI = False
        device.DisableAfterAcquire = True

        device.Open()
        device.PixelType = Vintasoft.Twain.PixelType.BW
        device.PageSize = Vintasoft.Twain.PageSize.A4
        device.PageOrientation = Vintasoft.Twain.PageOrientation.Landscape
        device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches
        device.Resolution = New Vintasoft.Twain.Resolution(300F, 300F)

        device.Acquire()
End Sub


public void ScanPage(Vintasoft.Twain.Device device)
{
    device.ShowUI = false;
    device.DisableAfterAcquire = true;

    device.Open();
    device.PixelType = Vintasoft.Twain.PixelType.BW;
    device.PageSize = Vintasoft.Twain.PageSize.A4;
    device.PageOrientation = Vintasoft.Twain.PageOrientation.Landscape;
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches;
    device.Resolution = new Vintasoft.Twain.Resolution(300f, 300f);

    device.Acquire();
}

Requirements

Target Platforms: .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

Device Class
Device Members

Open
PageSize

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