CF_LOCALE clipboard format?
Getting it from a place that might have been obvious in the past, but maybe not today.
CF_UNICODETEXT from CF_TEXT and vice versa?
Let's ask the locale.
CF_OEMTEXT from CF_TEXT and vice versa?
Starting with the easy case, or at least it looks easy.
You'll have to trick yourself before anybody notices, which may not be possible.
You can't. You'll have to do it before the process starts.
Request the directory security attributes that correspond to your proposed operation.
The large obstacles.
Remembering some old APIs.