hi, im looking for an equivalent code for imagecopy and imagecopymerge (GD) for Bitmap class. Before this I used GD-Sharp (wrapper) but I didnt notice that the license is GPL. So now Im trying to use all Bitmap instead of using other external library. 

1    for ($i = 0; $i < $radius; $i++)    { 
2                imagecopy ($imgBlur, $img, 0, 0, 1, 0, $w - 1, $h);
3                imagecopymerge ($imgBlur, $img, 1, 0, 0, 0, $w, $h, 50);
4                imagecopymerge ($imgBlur, $img, 0, 0, 0, 0, $w, $h, 50);
5                imagecopy ($imgCanvas, $imgBlur, 0, 0, 0, 0, $w, $h); 
6    
7                imagecopymerge ($imgBlur, $imgCanvas, 0, 0, 0, 1, $w, $h - 1, 33.33333 );
8                imagecopymerge ($imgBlur, $imgCanvas, 0, 1, 0, 0, $w, $h, 25);
9            } 

thanks