Make A Transparent/colourless Clickable Area?

I've search for hours on Google but could find a solution.want a clickable area (that can handle MouseClickEvent, DoubleClickEvent, etc...) that is transparent, hence you can look through it.For example:I have Form1 with a bunch of buttons, text fields, etc. I want a clickable area that is over the whole Form1 (thus over all the buttons, etc).If you click this area, the clickEvent for this area should be could and not the eg: button underneath this area.Most importantly of all the area must be transparent, thus all the buttons, textfields, etc underneath the clickable area should be visible. Something like a panel or pictureBox that you could put over the buttons would be ne, but a if you drag a panel/pictureBox over a button, the button is invisible, and if you say send to back, the event of the button will be called and not that of the clickable area.