| Key | Command |
--------------|---------------------------------------------------|
-| C-c C-g g | Guess alignment columns from region |
+| C-c C-g g | Guess alignment columns from the current region |
| C-c C-g s | Set alignment column to point |
| C-c C-g a | Align argument list at point |
| C-c C-g r | Align function declarations in the current region |
| C-c C-g C | Insert ```MODULE_OBJECT``` |
| C-c C-g C-c | Insert ```ModuleObject``` |
| C-c C-g s | Insert custom snippet |
+
+Example
+------
+
+If you have the following code in a header file:
+```c
+GGpgCtx *g_gpg_ctx_new (GError **error);
+
+typedef void (*GGpgProgressCallback) (gpointer user_data,
+ const gchar *what,
+ gint type,
+ gint current,
+ gint total);
+
+void g_gpg_ctx_set_progress_callback (GGpgCtx *ctx,
+ GGpgProgressCallback callback,
+ gpointer user_data,
+ GDestroyNotify destroy_data);
+void g_gpg_ctx_add_signer (GGpgCtx *ctx, GGpgKey *key);
+guint g_gpg_ctx_get_n_signers (GGpgCtx *ctx);
+GGpgKey *g_gpg_ctx_get_signer (GGpgCtx *ctx, guint index);
+void g_gpg_ctx_clear_signers (GGpgCtx *ctx);
+```
+
+Mark the region, type ```C-c C-g g```, and you will see the optimum
+alignment columns:
+
+```
+identifier-start: 9, arglist-start: 41, arglist-identifier-start: 63
+```
+
+Then, mark the region again, type ```C-c C-g r```, and you will get
+the code aligned:
+
+```c
+GGpgCtx *g_gpg_ctx_new (GError **error);
+
+typedef void (*GGpgProgressCallback) (gpointer user_data,
+ const gchar *what,
+ gint type,
+ gint current,
+ gint total);
+
+void g_gpg_ctx_set_progress_callback (GGpgCtx *ctx,
+ GGpgProgressCallback callback,
+ gpointer user_data,
+ GDestroyNotify destroy_data);
+void g_gpg_ctx_add_signer (GGpgCtx *ctx,
+ GGpgKey *key);
+guint g_gpg_ctx_get_n_signers (GGpgCtx *ctx);
+GGpgKey *g_gpg_ctx_get_signer (GGpgCtx *ctx,
+ guint index);
+void g_gpg_ctx_clear_signers (GGpgCtx *ctx);
+```
+
+Note that ```typedef``` is skipped as it is not a function declaration.