How to extract images from Access CommandButton?

I have an Access database that I am开发者_StackOverflow中文版 working on, and need to extract the images from a few CommandButtons on a Form and save the images as files.

I haven't been able to do this using VBA. Anyone done this before or know how to do this?

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I've used some of the Access built-in images, by using a simple graphics program to capture the screen image, then saving it to whatever format you require (eg bmp etc).