PixelType Property (Device)

In This Topic

Gets or sets the pixel type of images for current scan session.

Syntax

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

'Declaration

Public Property PixelType As PixelType

public PixelType PixelType { get; set; }

public: __property PixelType get_PixelType();
public: __property void set_PixelType(
   PixelType value
);

public:
property PixelType PixelType {
   PixelType get();
   void set(PixelType 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 pixel types can be received by the GetSupportedPixelTypes method.

Example

This C#/VB.NET code shows how to acquire part of color image with 200 dpi from the device.

VB.NET


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

    device.Open()
    device.PixelType = Vintasoft.Twain.PixelType.RGB
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches
    device.Resolution = New Vintasoft.Twain.Resolution(200.0F, 200.0F)
    device.ImageLayout.[Set](1.0F, 1.0F, 5.0F, 5.0F)

    device.Acquire()
End Sub


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

    device.Open();
    device.PixelType = Vintasoft.Twain.PixelType.RGB;
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches;
    device.Resolution = new Vintasoft.Twain.Resolution(200f, 200f);
    device.ImageLayout.Set(1f, 1f, 5f, 5f);

    device.Acquire();
}

Requirements

Target Platforms: .NET 10; .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

BitDepth
GetSupportedPixelTypes
Open
PixelFlavor

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