Hi! There is some reference code here: https://developer.gnome.org/gdk3/stable/gdk3-Wayland-Interaction.html https://developer.gnome.org/gdk3/stable/gdk3-X-Window-System-Interaction.html
- Include the backend specific headers: gdk/gdkx.h, gdk/gdkwayland.h - Link with backend specific libs: gdk-x11-3.0.pc, gdk-wayland-3.0.pc - Check the backend for the default display: if (GDK_IS_X11_DISPLAY(gdk_display_get_default())) { /*...*/ } Here is an example: /* compile with cc -o print-gdk-backend print-gdk-backend.c \ $(pkg-config --cflags --libs gtk+-3.0 gdk-x11-3.0 gdk-wayland-3.0) */ #include <gtk/gtk.h> #ifdef GDK_WINDOWING_X11 #include <gdk/gdkx.h> #endif #ifdef GDK_WINDOWING_WAYLAND #include <gdk/gdkwayland.h> #endif /* GDK_WINDOWING macros are defined in header /usr/include/gtk-3.0/gdk/gdkconfig.h */ int main() { gtk_init(NULL, NULL); #ifdef GDK_WINDOWING_X11 if (GDK_IS_X11_DISPLAY(gdk_display_get_default())) { g_print("X11 backend\n"); } #endif #ifdef GDK_WINDOWING_WAYLAND if (GDK_IS_WAYLAND_DISPLAY(gdk_display_get_default())) { g_print("Wayland backend\n"); } #endif return 0; } Il giorno gio 7 feb 2019 alle ore 06:28 Daniel Kasak via gtk-app-devel-list <gtk-app-devel-list@gnome.org> ha scritto: > Hi all. Is there a way to detect the gdk backend an app is using? I know > about the environment variable - GDK_BACKEND. But often this is not set, > and gtk just picks whatever's available. I need ever-so-slightly different > app behaviour, depending on the backend. Any ideas? > > Dan > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list