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#include <wand/MagickWand.h>
#include <assert.h>

int main () {
    MagickBooleanType rc;

    MagickWand *w = NewMagickWand ();
    assert (w);

    rc = MagickReadImage (w, "test.jpg");
    assert (rc == MagickTrue);

    FILE *fp = fopen ("out.png", "w+");
    assert (fp);

    rc = MagickSetImageFormat (w, "png");
    assert (rc == MagickTrue);

    char *format = MagickGetImageFormat (w);
    fprintf (stderr, "Format: %s\n", format);
    MagickRelinquishMemory (format);

    rc = MagickWriteImageFile (w, fp);
    assert (rc == MagickTrue);
    fclose (fp);

    return 0;
}