NewPixelRegionIterator

NewPixelRegionIterator -- returns a new PixelIterator resource.

Description

PixelIterator NewPixelRegionIterator( MagickWand mgck_wnd, int x, int y, int columns, int rows )

Returns a new PixelIterator resource, that is based on a specific region of the current active image of the specified MagickWand. The derived PixelIterator is based on the region of the current active image of the MagickWand mgck_wnd, that is defined as having its origin at the point (x, y), with its width = "columns", and its height = "rows".

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A description of each parameter follows:

mgck_wnd	The MagickWand that the Pixeliterator is to be derived from.
x	The x ordinate of the pixel at the top left corner of the pixel region you wish to iterate through
y	The y ordinate of the pixel at the top left corner of the pixel region you wish to iterate through
columns	The width of the pixel region you wish to iterate through
rows	The height of the pixel region you wish to iterate through