Re: Working with images

On 14 mai, 13:27, Jan Wielemaker <j...@xxxxxxxxxxxxxxxxxxx> wrote:
On 2007-05-14, angelrap...@xxxxxxxxx <angelrap...@xxxxxxxxx> wrote:

Hi,

I´m using some images on a GUI, and have some problems. All images
have different sizes, and I´d like to create a figure object with a
fixed measurement, is it possible?.

The XPCE library contains the file scaledbitmap.pl, which allows for
scaling images.

And a second question, how can I change the showed image, I´ve tried
with send(img,resource(newimage)) but didn´t work.

send(Img, load, File). Maybe you want send(Bitmap, image, Image) and
have different image objects laying around for the Bitmap. Image is
just a collection of pixels that can be used in any number of bitmap
objects.

--- Jan

First of all, thank you for all the help you´re providing me. Acording
to scaled_bitmap library, once loaded I can use the scale, size
operations. I find it easier to use the size operation since each
image have a different resolution, so the scale will be different for
each one.

:- pce_global(@myimage, new(bitmap)).
.......
:-use_module(library(scaledbitmap)).

ver:-
.....
send(@myimage, image,resource(imagenum1)),
send(@myimage, size('100','100')),

But when I try this, I complains about the size arguments. I've also
tried with no success:

send(@myimage, size(100,100)),
send(@myimage, size,100,100),
send(@myimage, size, '100' , '100'),

.

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