kCVImageBufferDisplayMaskRectangle_RectangleTopKey
Specifies the vertical pixel offset of the rectangle from the top of the bounding raster.
Declaration
let kCVImageBufferDisplayMaskRectangle_RectangleTopKey: CFStringDiscussion
The top offset value is a CFNumber of an unsigned 16-bit integer that’s less than the reference raster height value.
See Also
Constants
kCVImageBufferDisplayMaskRectangle_LeftEdgePointsKeykCVImageBufferDisplayMaskRectangle_RectangleHeightKeykCVImageBufferDisplayMaskRectangle_RectangleLeftKeykCVImageBufferDisplayMaskRectangle_RectangleWidthKeykCVImageBufferDisplayMaskRectangle_ReferenceRasterHeightKeykCVImageBufferDisplayMaskRectangle_ReferenceRasterWidthKeykCVImageBufferDisplayMaskRectangle_RightEdgePointsKey