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WriteableBitmap.WritePixels Method (Int32Rect, IntPtr, Int32, Int32)

Updates the pixels in the specified region of the bitmap.

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

member WritePixels : 
        sourceRect:Int32Rect * 
        buffer:IntPtr * 
        bufferSize:int * 
        stride:int -> unit

Parameters

sourceRect
Type: System.Windows.Int32Rect

The rectangle of the WriteableBitmap to update.

buffer
Type: System.IntPtr

The input buffer used to update the bitmap.

bufferSize
Type: System.Int32

The size of the input buffer.

stride
Type: System.Int32

The stride of the update region in buffer.

ExceptionCondition
ArgumentOutOfRangeException

One or more of the following conditions is true.

sourceRect falls outside the bounds of the WriteableBitmap.

bufferSize < 1

stride < 1

ArgumentNullException

buffer is a null reference (Nothing in Visual Basic).

.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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