On Sun, Sep 28, 2008 at 7:43 PM, Jonathon Jongsma
<jonathon quotidian org> wrote:
Mark Tilford wrote:
On Sat, Sep 27, 2008 at 1:55 PM, Mark Tilford <ralphmerridew gmail com>
wrote:
Anybody ever figure out what caused this problem? I can't get the
clock example to work:
~/src/gtk/clock$ g++ `pkg-config --cflags --libs gtkmm-2.4`
`pkg-config --cflags --libs cairomm-1.0` -g clock.cc main.cc
~/src/gtk/clock$ ./a.out
./a.out: symbol lookup error: ./a.out: undefined symbol:
_ZN3Gdk8Drawable20create_cairo_contextEv
I found a workaround:
Instead of
m_cairo_context = widget.get_window()->create_cairo_context();
Use
m_cairo_context = Cairo::RefPtr<Cairo::Context>(new
Cairo::Context(gdk_cairo_create(widget.get_window()->gobj())));
In case anybody else runs into the same problem.
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You're probably trying to link against a too-old version of gtkmm (?) I
believe the gdk_cairo_create() function was added in GTK+ 2.6, but it wasn't
wrapped until the next release of gtkmm (due to the fact that cairomm wasn't
yet stable in time for gtkmm-2.6)
* I might not have the version numbers exactly correct, but I know for sure
that there was a 1-version gap between when cairo support was added to GTK+
and when it was added to gtkmm.
--
jonner
Exactly which version do I have / which file do I need to upgrade?
(gtkmm numbering has me completely confused.)
ii libgtkmm-2.4-1c2a 1:2.12.5-2 C++
wrappers for GTK+ 2.4 (shared libraries)
ii libgtkmm-2.4-dev 1:2.12.5-2 C++
wrappers for GTK+ 2.4 (development files)
ii libgtkmm-2.4-doc 1:2.12.5-2 C++
wrappers for GTK+ 2.4 (documentation)
ii libcairomm-1.0-1 1.4.2-1 C++
wrappers for Cairo (shared libraries)
ii libcairomm-1.0-dev 1.4.2-1 C++
wrappers for Cairo (development files)
ii libcairomm-1.0-doc 1.4.2-1 C++
wrappers for Cairo (documentation)