server: allow OpenClipboard to succeed when already open

[James Hawkins]

On 2/7/06, Eric Frias <efrias at syncad.com> wrote:
> When OpenClipboard is called twice in a row with the same HWND as a
> parameter, wine lets the first call succeed, but the second call fails
> because the clipboard was already locked.  Although it's not specified
> in the docs, Windows allows the second call to succeed (and something
> deep inside of our app depends on this).  I think I submitted a version
> of this patch a year or two back, but it wasn't accepted.
>

You should add a unit test for this case in Wine's test suite.  It
would be pretty easy to write, and it would verify this information,
making your fix more likely to be accepted.

--
James Hawkins