Webpage based ActiveX control to capture clipboard

How difficult would it be to code an ActiveX control to retrieve an image from the Windows clipboard if the control is embedded in a webpage? For instance, the control appears on the webpage as an image box and when the user right clicks a menu pops up allowing them to paste an image.

I'm confident I can write the code to grab the image and display it, but how would I go about creating the control, embedding it into the HTML, and then capturing the data that composes the image so it can be stored on a webserver?

I can't find any good tutorials on how to do something like this.

Create it just as you would a regular ActiveX control. The only difference is 'implementation', wherein you need to generate the .CAB files and place them in the <object> tag in an HTML page.

HTH