Image control in VB6

Hi,

I have some map images on which I would like to identify few locations. My map image is inside an Image control. I would like to know how can I use VB6 to identify a desired location on the image. I should be able to draw a small circle or a square etc on this image wherever he clicks and later save this as BMP or JPEG or GIF.

I am using Visual Basic 6.0.

Thanks in advance for your help.

Pranav