[GtkGLExt] Gtkglext use with GTK x64

["Freedom1.44 GMAIL" <freedom1 44 gmail com>]

Hello all,

I have a project that uses GTK + and gtkglext. it compiles perfectly 
with MinGW. But I would like to bring this project in 64 bits.

For this, I use MinGW-w64 http://mingw-w64.sourceforge.net/ and GTKx64 
http://www.gtk.org/download/win64.php.
I work in C :: B under Windows7 x64.

Is it possible to use gtkglext?
If this is the case could you help me please.

Best regard and sorry for my english.