Ok well i just checked and dropped down to 1600x1200 (highest non widescreen res under my native) and it looks the same. Its not cropping. If its not actually widescreen then it is stretched, but its definately not cropped as the players hands are exactly the same in widescreen and 4x3
AP4 is right:
Master Games List - B - WSGFWiki
the widescreen support is listed as Vert - instead of Hor + which means they actually reduce the viewing area believe it or not. No full screen support in this day and age where 99% of monitors are widescreen? UNEXCUSABLE!
PS: You can play any game at any resolution ( like warcraft 3 ) by editing the regedit, but that still doesn't help the viewing area. The game has to support it so theres an increase in viewing area ( warcraft 3 does not even tho I play it at my native resolution 1600x1050 by editing the regedit )