Gewusst wie: Drehen eines Bilds

In diesem Beispiel wird gezeigt, wie ein Bild um 90 Grad gedreht werden kann, indem eine Rotation-Eigenschaft einer BitmapImage-Instanz verwendet wird.

Beispiel

<Image Width="150" Margin="5" Grid.Column="0" Grid.Row="1">
   <Image.Source>
     <BitmapImage UriSource="/sampleImages/watermelon.jpg" Rotation="Rotate90" />
   </Image.Source>
</Image>

//Create Image element
Image rotated270 = new Image();
rotated270.Width = 150;

//Create source
BitmapImage bi = new BitmapImage();
//BitmapImage properties must be in a BeginInit/EndInit block
bi.BeginInit();
bi.UriSource = new Uri(@"pack://application:,,/sampleImages/watermelon.jpg");
//Set image rotation
bi.Rotation = Rotation.Rotate270;
bi.EndInit();
//set image source
rotated270.Source = bi;

'Create Image element
Dim rotated270 As New Image()
rotated270.Width = 150

'Create source
Dim bi As New BitmapImage()
'BitmapImage properties must be in a BeginInit/EndInit block
bi.BeginInit()
bi.UriSource = New Uri("pack://application:,,/sampleImages/watermelon.jpg")
'Set image rotation
bi.Rotation = Rotation.Rotate270
bi.EndInit()
'set image source
rotated270.Source = bi