[Bug 17654] Edit control on toolbar behaves badly

http://bugs.winehq.org/show_bug.cgi?id=17654

--- Comment #1 from Igor Tarasov   2009-03-10 09:34:09 ---
So, I've figured that. Some story: there is a comment in toolbar.c:

/* UNDOCUMENTED: If a separator has a non zero bitmap index, */
        /* it is the actual width of the separator. This is used for */
        /* custom controls in toolbars.                              */
        /*                                                           */

This is incorrect. I am not sure what the correct behavior is exactly, but if
there was TOOLBAR_SetButtonInfoW call updating button size (cx) then native
comctl changes separator's width. Builtin ignores this value.

Way to reproduce with control spy: Open toolbar.exe. Send two messages one by
one: Firstly change button into separator:

MSG (TB_SETBUTTONINFO,2,
TBBUTTONINFO(tbbisize,8,0,0,0,1,0,0,"string",127))

Second, change that button (now separator) size:

MSG (TB_SETBUTTONINFO,2,
TBBUTTONINFO(tbbisize,64,0,0,0,0,40,0,"string",127))

Compare with native comctl behavior.