I am have been using MS Access for a while and now I am requested to write a software for a windows and doors manufacturer. The user should have a form with different buttons that accomplish different tasks.

before entering the form, the user will enter the dimensions required and the software should start with an empty rectangle.

Then, like in "Paint" when the user presses down the "frame button", then goes to the empty rectangle and clicks inside it, the software should draw the frame of a window inside.

Another button, when we click inside the window it should split the rectangle in two.

I want to end up with shapes like in this site:

and then the software should send the information back to Access to deal with the stock and such.

I would like someone to guide me... for I am clueless here.

Thanks