VBGamer

I'm busy on a game, which is from the isometric view point. Now i'm busy with the mouse routines, but it's not accurate enough (only works on the tile, for example, not on a building. Let's say you have something like this: / \ (little bit flat :-) / \ / \ / \ \ / \ / \ / \ / The mouseclick will only be registered here: / \ /__\ /| |\ / | | \ \ | | / \|__| / \ / \ / You see it's a simple routine, but can someone provide me a routine or some other way on how to register a click on the total tile/building?