VintaSoft Twain .NET SDK v10.2
BitDepth Property (Device)
Example 




Vintasoft.WpfTwain Namespace > Device Class : BitDepth Property
Gets or sets the bit depth of images for current scan session.
Syntax
'Declaration
 
Public Property BitDepth As Integer
'Usage
 
Dim instance As Device
Dim value As Integer
 
instance.BitDepth = value
 
value = instance.BitDepth
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);
}
Exceptions
ExceptionDescription
Thrown if device is in wrong state.
Thrown if device does not support capability.
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 values of bit depths can be received by the GetSupportedBitDepths method.
Example
This example shows how to acquire 4-bpp palette images from the device.
Public Sub ScanPaletteImage(ByVal device As Device)
    device.ShowUI = False
    device.DisableAfterAcquire = True
            
    device.Open()
    device.PixelType = PixelType.Palette
    device.BitDepth = 4
    device.UnitOfMeasure = UnitOfMeasure.Inches
    device.Resolution = New Resolution(200.0F, 200.0F)
            
    device.Acquire()
End Sub
public void ScanPaletteImage(Device device)
{
    device.ShowUI = false;
    device.DisableAfterAcquire = true;
            
    device.Open();
    device.PixelType = PixelType.Palette;
    device.BitDepth = 4;
    device.UnitOfMeasure = UnitOfMeasure.Inches;
    device.Resolution = new Resolution(200f, 200f);
            
    device.Acquire();
}
Requirements

Target Platforms: Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2003

See Also

Reference

Device Class
Device Members
GetSupportedBitDepths Method
Open Method
PixelType Property