Gtk.Builder.add_from_string

### Method

# Gtk Builderadd_from_string

#### Declaration [src]

    gboolean
    gtk_builder_add_from_string (
      GtkBuilder* builder,
      const char* buffer,
      gssize length,
      GError** error
    )

#### Description [src]

Parses a string containing a UI definition and merges it with the current contents of `builder`.

This function is useful if you need to call `gtk_builder_set_current_object()` to add user data to callbacks before loading `GtkBuilder` UI. Otherwise, you probably want `gtk_builder_new_from_string()` instead.

Upon errors `FALSE` will be returned and `error` will be assigned a `GError` from the `GTK_BUILDER_ERROR`, `G_MARKUP_ERROR` or `G_VARIANT_PARSE_ERROR` domain.

It’s not really reasonable to attempt to handle failures of this call. The only reasonable thing to do when an error is detected is to call `g_error()`.

#### Parameters

`buffer` | `const char*`
| The string to parse.
| The data is owned by the caller of the function.
| The string is a NUL terminated UTF-8 string.
`length` | `gssize`
| The length of `buffer` (may be -1 if `buffer` is nul-terminated)
`error` | `GError **`
| The return location for a `GError*`, or `NULL`.

#### Return value

Returns: | `gboolean`
| `TRUE` on success, `FALSE` if an error occurred.