getImageData method
Returns an ICanvasImageData object that represents the pixel data for the specified rectangle on a canvas. Use the data property to get a CanvasPixelArray to manipulate individual pixel data.
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Syntax
ICanvasImageData retVal = object.getImageData(sx, sy, sw, sh);
Parameters
- sx [in]
-
Type: number
The x-coordinate, in pixels, of the upper-left corner of the rectangle in relation to the coordinates of the canvas.
- sy [in]
-
Type: number
The y-coordinate, in pixels, of the upper-left corner of the rectangle in relation to the coordinates of the canvas.
- sw [in]
-
Type: number
The width, in pixels, of the rectangle in relation to the coordinates of the canvas.
- sh [in]
-
Type: number
The height, in pixels, of the rectangle in relation to the coordinates of the canvas.
Standards information
- HTML Canvas 2D Context, Section 13
Remarks
If the rectangle contains pixels outside the canvas, they are returned as transparent black.
See also

