在 WPF 中使用图像控件显示 System.Draw.Bitmap

小开

According to http://khason.net/blog/how-to-use-systemdrawingbitmap-hbitmap-in-wpf/

   [DllImport("gdi32")]
static extern int DeleteObject(IntPtr o);


public static BitmapSource loadBitmap(System.Drawing.Bitmap source)
{
IntPtr ip = source.GetHbitmap();
BitmapSource bs = null;
try
{
bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(ip,
IntPtr.Zero, Int32Rect.Empty,
System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
}
finally
{
DeleteObject(ip);
}


return bs;
}

It gets System.Drawing.Bitmap (from WindowsBased) and converts it into BitmapSource, which can be actually used as image source for your Image control in WPF.

image1.Source = YourUtilClass.loadBitmap(SomeBitmap);

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最佳答案

You can use the Source property of the image. Try this code...

ImageSource imageSource = new BitmapImage(new Uri("C:\\FileName.gif"));


image1.Source = imageSource;

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It's easy for disk file, but harder for Bitmap in memory.

System.Drawing.Bitmap bmp;
Image image;
...
MemoryStream ms = new MemoryStream();
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
ms.Position = 0;
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.StreamSource = ms;
bi.EndInit();


image.Source = bi;

Stealed here

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I wrote a program with wpf and used Database for showing images and this is my code:

SqlConnection con = new SqlConnection(@"Data Source=HITMAN-PC\MYSQL;
Initial Catalog=Payam;
Integrated Security=True");


SqlDataAdapter da = new SqlDataAdapter("select * from news", con);


DataTable dt = new DataTable();
da.Fill(dt);


string adress = dt.Rows[i]["ImgLink"].ToString();
ImageSource imgsr = new BitmapImage(new Uri(adress));
PnlImg.Source = imgsr;