IRenderHandlerOnPaint Method

void OnPaint(
	bool isPopup,
	Rect dirtyRect,
	IntPtr buffer,
	int width,
	int height,
	Image image
)

void OnPaint(
	bool isPopup, 
	Rect dirtyRect, 
	IntPtr buffer, 
	int width, 
	int height, 
	Image^ image
)

Parameters

isPopup  Boolean

indicates whether the element is the view or the popup widget.

dirtyRect  Rect

contains the set of rectangles in pixel coordinates that need to be repainted

buffer  IntPtr

The bitmap will be will be width * height *4 bytes in size and represents a BGRA image with an upper-left origin

width  Int32

width

height  Int32

height

image  Image

image used as parent for rendered bitmap

Reference