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> Subject: Re: Drawing area - example - code > From: murrayc murrayc com > To: b_grottier hotmail com > CC: gtkmm-list gnome org > Date: Sun, 16 Mar 2008 12:04:28 +0100 > > > On Sun, 2008-03-16 at 08:45 +0000, Bertrand Grottier wrote: > > Hello, > > > > I compiled the simple example provided in the gtkmm documentation > > dealing with Drawing areas > > (http://www.gtkmm.org/docs/gtkmm-2.4/...ing-lines.html) > > > > When I run the program, quickly dragging the window out of the screen > > and back always triggers a crash. > > > > My environment is the following: > > - OS : Windows XP, > > - EDI : Visual Studio 2008 Express Edition. > > > > Has somebody encountered the same problem ? > > I can't reproduce this on Linux, though I see now way to drag the whole > window completely off the screen. Yes, you are right: I drag the window just partially off the screen. > Could you get a backtrace for the crash from your debugger? Unfortunately, in debug mode, the program crashes at the very beginning with the following message: File: f:\\dd\vctools\crt_bld\self_x86\crt\src\dbgheap.c Line: 1317 _expression_: _CrtIsValidHeapPointer(pUserData) Here is the call stack : test.exe!Cairo::RefPtr<Cairo::Context>::unref() Line 210 + 0x18 octets test.exe!Cairo::RefPtr<Cairo::Context>::~RefPtr<Cairo::Context>() Line 193 test.exe!MyArea:on_expose_event(_GdkEventExpose * event=0x0012fa08) Line 38 gtkmm-2.4.dll!Gtk::Widget_Class::expose_event_callback(_GtkWidget* self=0x011ff398, _GdkEventExpose * p0=0x0012fa08) Line 4494 + 0x13 octets May the problem come from the fact that I am using the 2008 version of Visual Studio instead of the 2005 version ? Best regards, Benoît Windows Live Messenger 2008 vient de sortir, encore plus de fun ! Téléchargez gratuitement Messenger 2008 |