PageSize Property (Device)

In This Topic

Gets or sets the page size for current scan session.

Syntax

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

'Declaration

Public Property PageSize As PageSize

public PageSize PageSize { get; set; }

public: __property PageSize get_PageSize();
public: __property void set_PageSize(
   PageSize value
);

public:
property PageSize PageSize {
   PageSize get();
   void set(PageSize 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 (State == DeviceState.Opened).

Supported pages sizes can be received by the GetSupportedPageSizes method.

This property has effect only if you do not use User Interface (ShowUI=False).

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

Reference

Device Class
Device Members

GetSupportedPageSizes
Open

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