[PATCH v5 0/2] MR10340: comctl32/tooltips: suppress icon and title when title is NULL or empty.

[Larry Starr (＠starrl)]

Per MSDN, TTM_SETTITLE with a NULL or empty title string should suppress
both the title row and any associated icon. Previously an empty string
was treated the same as a non-empty title, causing the icon to still be
displayed and the tooltip to be incorrectly sized.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58236
Signed-off-by: Larry Starr <[e-mail]>

--
  v5: comctl32/tooltips: suppress icon and title when title is NULL or empty.
      comctl32/tooltips/tests: add regression test for TTM_SETTITLE with NULL or empty title.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10340