allow text selection and copy in non-Command windows

[rogpeppe]

Currently it's only possible to select and copy text in the Command window, but it can also be useful to copy text in other windows to the system pasteboard, particularly values inspected on the stack or heap. Screenshot and OCR or manual typing is not where it's at :)

[aarzilli]

You can actually copy the value of a variable by right clicking on it.

[rogpeppe]

@aarzilli Thanks. That's useful, but I still think that it would be good to be able to copy arbitrary pieces of text that are displayed (for example memory addresses), and from the stack trace too, especially since the bt command isn't available.

[dr2chase]

I came here to say the same, it would be so helpful to be able to copy arbitrary text out of gdlv panes.

[tmelot2]

+1 to this, I want to copy out blocks of disassembly.

I tried the Windows 11 Snipping Tool's OCR, but it doesn't let you select text across rows of code, so that doesn't really work. I may try other OCR tools, but builtin text selection would be the most helpful!

(gdlv rules by the way. Extremely helpful!)