AlphaBitmapReturn(Bitmap) Method

This method is deprecated, please use GetAlphaChannelAsBitmap instead.

Returns a bitmap object of type System.Drawing.Imaging.PixelFormat.Format8bppIndexed which is an 8 bit gray scale image depicting the alpha channel data layer.

Syntax

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

'Declaration
 
<ObsoleteAttribute("This method is deprecated, please use GetAlphaChannelAsBitmap() instead.")>
Public Overloads Sub AlphaBitmapReturn( _
   ByRef ReturnBitmap As Bitmap _
)

'Usage
 
Dim instance As Processor
Dim ReturnBitmap As Bitmap
 
instance.AlphaBitmapReturn(ReturnBitmap)

[Obsolete("This method is deprecated, please use GetAlphaChannelAsBitmap() instead.")]
public void AlphaBitmapReturn( 
   out Bitmap ReturnBitmap
)

[Obsolete("This method is deprecated, please use GetAlphaChannelAsBitmap() instead.")]
public: void AlphaBitmapReturn( 
   [PARAMFLAG::Out] Bitmap* ReturnBitmap
)

[Obsolete("This method is deprecated, please use GetAlphaChannelAsBitmap() instead.")]
public:
void AlphaBitmapReturn( 
   [Out] Bitmap^ ReturnBitmap
)

Parameters

ReturnBitmap: A System.Drawing.Bitmap value which represents the returned bitmap.

Remarks

The original image must be a 32 bit image where 8 bits are the alpha layer and 24 bits are rgb color layer.

Returning the handle implicitly reduces the image down to 24 bit. The alpha object may be modified and restored via the AlphaAdd method.

Reference

Processor Class
Processor Members
Overload List