Re: Gtk::Action subclass with Visual C

[Yann LEYDIER <yann leydier info>]

I tried to run the same test with Gtkmm's installer and Visual C++ 2008 
and it works. It also works with MinGW.

So it seems that Gtkmm cannot be compiled with Stlport. Any idea why ?


As Glib::ustring is based on std::string, I fear that if it is very 
risky to link the official Gtkmm DLL with an exe that uses Stlport... 
Did anyone try ?

yann

On 19/01/2011 16:35, Yann LEYDIER wrote:
> Hi,
>
> I created two Action subclasses (one for ScaleButton and another for
> ColorButton). It works fine on linux (Ubuntu 10.04 and Debian Sid).
> However it crashes with Visual C++ 2008.
>
> My project uses stlport (to avoid DLL restrictions on the standard
> library) so I compiled libsigc++, glibmm, cairomm, pangomm, atkmm and
> gtkmm (2.22.0) with Stlport 5.2.1.
>
> I isolated the problem (or at least, one problem) in a small code sample
> pasted at the end of the message. The program crashes (access violation)
> at exit in Gtk::Action::~Action(), which is an empty method !
>
> Moreover, Visual C++'s debugger prints a wrong address for "this"
> whereas a "cout << this" in my destructor prints the good address.
>
> Running the program with valgrind on linux displays no error.
>
> Does anyone know what can cause such a crash ? It is hard to find
> documentation or examples on how to create custom actions, so I don't
> know if I did something wrong.
>
> Many thanks,
> Yann
>
>
>
> #include <gtkmm.h>
>
> class MyAction: public Gtk::Action
> {
> public:
> static Glib::RefPtr<MyAction> create(const Glib::ustring &name)
> {
> return Glib::RefPtr<MyAction>(new MyAction(name));
> }
> private:
> MyAction(const Glib::ustring &name):
> Gtk::Action(name)
> {
> }
> ~MyAction() {}
> };
>
> int main(int argc, char* argv[])
> {
> Gtk::Main kit(argc, argv);
> Gtk::Window w;
> Glib::RefPtr<MyAction> act(MyAction::create("toto"));
> kit.run(w);
> return 0;
> }
>
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