wine users - Nov 2010 - CRITICAL_SECTION hang my application

Good Day, dear wine users :) .
I am the developer of program, which must work under Wine and Windows.  it has
two threads, and these threads use one function to add text to Rich text box.
When they try to add texts in parallel, a mixed text appear. So I decided to use
critical section. When main thread tries to add text, the text adds perfectly,
but when the second thread tries to add text - it hangs my app :( .
Here is the code in C++:

Code:
HWND__ *h_Edit = rtf_list->Handle;
 
EnterCriticalSection(&cr_sec);
CHARRANGE cr;
cr.cpMin = 0;
cr.cpMax = 0;
// App hangs on this line
SendMessage(h_Edit, EM_EXSETSEL, 0, (LPARAM)&cr);
 
  //.....
 
LeaveCriticalSection(&cr_sec);



Before this I use:


Code:
CRITICAL_SECTION cr_sec;
InitializeCriticalSection(&cr_sec);



to initialize Critical Section.

SteelRat wrote:
> So I decided to use critical section. When main thread tries to add text,
the text adds perfectly, but when the second thread tries to add text - it hangs
my app :( .
Don't use crit sections with anything GUI related. It's all serialized
via message queues.

If something doesn't work when using SendMessage() then you either doing
something wrong, or it's a bug in Wine. In first case - check if it works on
Windows. And if it does - file bug in bugzilla. Also note that Wine's
implementation of RichEdit is still pretty weak and does have significant
issues.