Clipboard Contents

Often, not having options available to copy or export in some way a Display
of sorts, I find that,(wrongly, perhaps,) my last resort is to use
Alt-Print/Screen to get some record of what may of value in the Display.
However, the
format of the record is actually an image. I have problems dealing with it
when it comes to sort it out, in some way, or edit it, if necessary.
Is there a way to extract the contents and paste them, in
an editable format, to Notepad, for instance, of to a favorite Word
Processor ?

Thanks, in advance, for any suggestions!