Undocumented Toolbar common control message is now documented by Microsoft - wine-devel

17 Oct 2015


      Hello Wine developers,
I don't know if you guys are interested in this or not, but I figured I'd
let you know that Microsoft has now documented one of the undocumented
toolbar messages.
include/commctrl.h (Wine)
#define TB_UNKWN45D             (WM_USER + 93)
include\um\commctrl.h (Windows)
#define TB_SETBOUNDINGSIZE      (WM_USER + 93)
TB_SETBOUNDINGSIZE message
https://msdn.microsoft.com/en-us/library/ee663584(v=vs.85).aspx
<< Sets the bounding size for a multi-column toolbar control. >>
That would mean you could also make the corresponding changes to this code
as well:
dlls/comctl32/toolbar.c
case TB_UNKWN45D:
    return TOOLBAR_Unkwn45D(hwnd, wParam, lParam);
/* UNDOCUMENTED MESSAGE: This appears to set some kind of size. Perhaps it
 * is the maximum size of the toolbar? */
static LRESULT TOOLBAR_Unkwn45D(HWND hwnd, WPARAM wParam, LPARAM lParam)
Anyway, just figured I'd share that with you guys.
Cheers,
Alan Feldman