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TransformedBitmap.BeginInit Method

Signals the start of the TransformedBitmap initialization.

Namespace:  System.Windows.Media.Imaging
Assembly:  PresentationCore (in PresentationCore.dll)

public void BeginInit()

Implements

ISupportInitialize.BeginInit()

ExceptionCondition
InvalidOperationException

The TransformedBitmap is currently being initialized. BeginInit has already been called.

-or-

The TransformedBitmap has already been initialized.

Property initialization must be done between BeginInit and EndInit calls. Once the TransformedBitmap has been initialized, property changes are ignored.

The following example demonstrates how to initialize a TransformedBitmap with a set of properties by using the BeginInit and EndInit methods.

// Create the new BitmapSource that will be used to scale the size of the source.
TransformedBitmap myRotatedBitmapSource = new TransformedBitmap();

// BitmapSource objects like TransformedBitmap can only have their properties 
// changed within a BeginInit/EndInit block.
myRotatedBitmapSource.BeginInit();

// Use the BitmapSource object defined above as the source for this BitmapSource. 
// This creates a "chain" of BitmapSource objects which essentially inherit from each other.
myRotatedBitmapSource.Source = myBitmapImage;

// Flip the source 90 degrees.
myRotatedBitmapSource.Transform = new RotateTransform(90);
myRotatedBitmapSource.EndInit();

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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