WriteableBitmap.Render Method

July 28, 2014

Renders an element within the bitmap.

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

'Declaration
Public Sub Render ( _
	element As UIElement, _
	transform As Transform _
)

Parameters

element
Type: System.Windows.UIElement
The element to be rendered within the bitmap.
transform
Type: System.Windows.Media.Transform
The transform to apply to the element before drawing into the bitmap. If an empty transform is supplied, the bits representing the element show up at the same offset as if they were placed within their parent.

ExceptionCondition
ArgumentNullException

element is null.

After calling this method, you must call Invalidate in order to render the bitmap.

This method does support UIElement objects that are not part of the visual tree. You are required to call Measure and Arrange for UIElement objects that are not in the visual tree, before calling Render.

If the element is larger than the size of the bitmap, or if the element has any points in the negative regions of its own space, it is clipped as appropriate.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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