D3DKMT_DIRTYREGIONS structure (d3dkmthk.h)

The D3DKMT_DIRTYREGIONS structure describes active rectangles (dirty regions) of a surface.

Syntax

typedef struct _D3DKMT_DIRTYREGIONS {
  [in] UINT NumRects;
       RECT Rects[D3DKMT_MAX_PRESENT_HISTORY_RECTS];
} D3DKMT_DIRTYREGIONS;

[in] NumRects

The number of dirty regions in the array that the Rects member specifies.

[in] Rects[D3DKMT_MAX_PRESENT_HISTORY_RECTS]

An array of RECT structures that specifies the dirty regions of a surface.

Requirement	Value
Minimum supported client	D3DKMT_DIRTYREGIONS is supported beginning with the Windows 7 operating system.
Header	d3dkmthk.h (include D3dkmthk.h)