Re: [Gimp-developer] Enlarge image canvas with gimp_image_resize procedure

Are you also growing the layer boundaries? If you grow the canvas, but
not the layer boundaries, you won't be able to draw on the new canvas

  -- drawoc

On Thu, Feb 27, 2014 at 4:53 AM, Alessandro Francesconi
<alessandrofrancesconi live it> wrote:
I need to enlarge the area of an image using one of the available GIMP's procedures. So, instead of using 
the GIMP's graphical interface and this tool, I want to be 
able to have the same effects on a C code.

The function that should be called is this one, right?

But it works when I need to shrink the canvas: on a 640x480 image, if I input smaller values the canvas is 
actually cut. Instead, if I want to add a 20px transparent border along the area (so I type 680 and 520 px, 
also with consistent offset values), the function just returns the original image.

How does it work? Thanks

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