BitDepth Свойство (Device)

В этом разделе

Gets or sets the bit depth of images for current scan session.

Синтаксис

Visual Basic
C#
Управляемые расширения для C++
C++/CLI

'Declaration

Public Property BitDepth As Integer

public int BitDepth { get; set; }

public: __property int get_BitDepth();
public: __property void set_BitDepth(
   int value
);

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

Исключения

Исключение	Описание
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.

Ремарки

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

Supported values of bit depths can be received by the GetSupportedBitDepths method.

Пример

This C#/VB.NET code shows how to acquire 4-bpp palette images from the device.

VB.NET


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

    device.Open()
    device.PixelType = Vintasoft.Twain.PixelType.Palette
    device.BitDepth = 4
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches
    device.Resolution = New Vintasoft.Twain.Resolution(200.0F, 200.0F)

    device.Acquire()
End Sub


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

    device.Open();
    device.PixelType = Vintasoft.Twain.PixelType.Palette;
    device.BitDepth = 4;
    device.UnitOfMeasure = Vintasoft.Twain.UnitOfMeasure.Inches;
    device.Resolution = new Vintasoft.Twain.Resolution(200f, 200f);

    device.Acquire();
}

Требования

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

Смотрите также

Справочник

Device Class
Члены типа Device

GetSupportedBitDepths
Open
PixelType

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