/understanding_gtk_and_gobject

Code I wrote to understand and experiment with Gtk and GObject

Primary LanguageCMIT LicenseMIT

Understanding and experimenting with GTK and GObject

These are the experiments and small pieces of code I wrote to understand how GTK, GObject and especially the introspection works.

with_invoker.c

This example shows how to create a window with GTK by using the GIR repository. It loads all the required typelib describing Gtk, Glib, GObject and Gio. It then makes a window and connect a signal using a GClosure. I use g_signal_connect_closure because this is the only function available from introspection (and suitable for this example). The regular g_signal_connect is a macro in C and not introspectable.

This example also shows how to build a simple GClosure and a marshall function.

Compile the example with

cc with_invoker.c $(pkg-config --cflags --libs glib-2.0 gobject-introspection-1.0 gobject-2.0 gtk4) && ./a.out

Sample output

Calling marshal function with 1 parameters
GClosure is 0x561dc9d7bfd0, return_value is 0x7ffe7a264600
Doing a callback now....