PresentParameters Structure Members
In This Topic
The following tables list the members exposed by PresentParameters.
Public Fields
| | Name | Description |
|---|
 | DirtyRectangles | A list of updated rectangles that you update in the back buffer for the presented frame. An application must update every single pixel in each rectangle that it reports to the runtime; the application cannot assume that the pixels are saved from the previous frame. For more information about updating dirty rectangles, see Remarks. You can set this member to null if DirtyRectsCount is 0. An application must not update any pixel outside of the dirty rectangles. |
| ScrollOffset | A reference to the offset of the scrolled area that goes from the source rectangle (of previous frame) to the destination rectangle (of current frame). You can set this member to null to indicate no offset. |
| ScrollRectangle | A reference to the scrolled rectangle. |
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