[Bug 10439] Raddecay crashes with:"Access violation in riched20.dll"

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=10439


Alex Villacís Lasso <a_villacis at palosanto.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|wine-bugs at winehq.org        |a_villacis at palosanto.com
             Status|NEW                         |ASSIGNED




--- Comment #3 from Alex Villacís Lasso <a_villacis at palosanto.com>  2007-12-07 23:25:16 ---
Created an attachment (id=9545)
 --> (http://bugs.winehq.org/attachment.cgi?id=9545)
Invalidate all the text on bogus last selection

When removing text, beginning and end offsets of last selection are not 
inmediately updated. When calling ME_InvalidateSelection() in paint.c, the 
values are clipped to the current length of the text. However, even after
clipping, the values are unusable for deciding which parts of the text should
be updated. The control can very well try to mark invalidated paragraphs past
the end of the last paragraph, triggering a null pointer access. The
application
RadDecay at bug #10439 crashes because of this.

The attached patch just ignores the values when one or both of them point past
the length of the current text, and invalidates everything. Existing code then
recalculates the new selection beginning and end anew.

Patch already sent to wine-patches.


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