Bitmap
using System;
using System.Drawing;
using System.Windows.Media.Imaging;
using System.IO;
using System.Drawing.Imaging;
using System.Windows.Interop;
namespace Runaurufu.Extension
{
public static class ExtensionBitmap
{
public static BitmapImage ToBitmapImage(this Bitmap A)
{
using (MemoryStream ms = new MemoryStream())
{
A.Save(ms, ImageFormat.Bmp);
ms.Position = 0;
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.StreamSource = ms;
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.EndInit();
return bi;
}
}
[System.Runtime.InteropServices.DllImport("gdi32.dll")]
private static extern bool DeleteObject(IntPtr hObject);
public static BitmapSource ToBitmapSource(this Bitmap A)
{
IntPtr hBitmap = A.GetHbitmap();
BitmapSource result;
try
{
result = Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, System.Windows.Int32Rect.Empty, System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
}
finally
{
DeleteObject(hBitmap);
}
return result;
}
public static Byte[] ToByteArray(this Bitmap A)
{
using (MemoryStream ms = new MemoryStream())
{
A.Save(ms, ImageFormat.Bmp);
ms.Position = 0;
return ms.ToArray();
}
}
}
}
BitmapSource
using System;
using System.Drawing;
using System.IO;
using System.Windows.Media.Imaging;
namespace Runaurufu.Extension
{
public static class ExtensionBitmapSource
{
public static BitmapImage ToBitmapImage(this BitmapSource A)
{
return A.ToBitmapImage(new BmpBitmapEncoder());
}
public static BitmapImage ToBitmapImage(this BitmapSource A, BitmapEncoder encoder)
{
BitmapImage bi = new BitmapImage();
using (MemoryStream ms = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(A));
encoder.Save(ms);
ms.Position = 0;
bi.BeginInit();
bi.StreamSource = ms;
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.EndInit();
}
return bi;
}
public static Bitmap ToBitmap(this BitmapSource A)
{
return A.ToBitmap(new BmpBitmapEncoder());
}
public static Bitmap ToBitmap(this BitmapSource A, BitmapEncoder encoder)
{
System.Drawing.Bitmap bitmap;
using (MemoryStream outStream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(A));
encoder.Save(outStream);
bitmap = new System.Drawing.Bitmap(outStream);
}
return bitmap;
}
public static Byte[] ToByteArray(this BitmapSource A)
{
return A.ToByteArray(new BmpBitmapEncoder());
}
public static Byte[] ToByteArray(this BitmapSource A, BitmapEncoder encoder)
{
using (MemoryStream memoryStream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(A));
encoder.Save(memoryStream);
return memoryStream.GetBuffer();
}
}
}
}
BitmapImage
using System;
using System.Drawing;
using System.IO;
using System.Windows.Media.Imaging;
namespace Runaurufu.Extension
{
public static class ExtensionBitmapImage
{
public static Bitmap ToBitmap(this BitmapImage A)
{
return A.ToBitmap(new BmpBitmapEncoder());
}
public static Bitmap ToBitmap(this BitmapImage A, BitmapEncoder encoder)
{
Bitmap bitmap;
using (MemoryStream outStream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(A));
encoder.Save(outStream);
bitmap = new System.Drawing.Bitmap(outStream);
}
return bitmap;
}
public static Byte[] ToByteArray(this BitmapImage A)
{
return A.ToByteArray(new BmpBitmapEncoder());
}
public static Byte[] ToByteArray(this BitmapImage A, BitmapEncoder encoder)
{
Byte[] byteArr;
using (MemoryStream ms = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(A));
encoder.Save(ms);
ms.Position = 0;
byteArr = ms.GetBuffer();
}
return byteArr;
}
}
}
Byte[]
using System;
using System.Drawing;
using System.IO;
using System.Windows.Media.Imaging;
namespace Runaurufu.Extension
{
public static class ExtensionByte
{
public static Bitmap ToBitmap(this Byte[] A)
{
using (MemoryStream ms = new MemoryStream(A))
{
return new Bitmap(ms);
}
}
public static BitmapImage ToBitmapImage(this Byte[] A)
{
using (MemoryStream ms = new MemoryStream(A))
{
ms.Position = 0;
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.StreamSource = ms;
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.EndInit();
return bi;
}
}
}
}
Warto zwrócić uwagę, że w przypadku BitmapSource czyli obrazach rodem z WPF/Silverlighta konieczne jest podanie odpowiedniego enkodera - wybór np. JpegEncoder na obrazie z kanałem alfa (przeźroczystość) sprawi, że ów kanał alfa trafi szlag... :) Dodatkowo z oczywistych przyczyn nie ma metody do konwersji BitmapImage -> BitmapSource - a jeśli ktoś szuka bo z jakiś powodów potrzebuje to może wykorzystać ten fragment:
public static BitmapSource ToBitmapSource (this BitmapImage A)
{
return (BitmapSource)A;
}
A wszystkim, którzy choć od czasu do czasu zaglądają w me skromne progi życzę Wesołych Świąt :)
Keywords: C#, . NET, Bitmap, BitmapImage, BitmapSource, Bitmap conversions, Silverlight, WPF, WinForm, Image, Picture, Transparent BitmapImage.
