Gio.AppInfo.set_as_default_for_extension

### Method

# Gio AppInfoset_as_default_for_extension

#### Declaration [src]

    gboolean
    g_app_info_set_as_default_for_extension (
      GAppInfo* appinfo,
      const char* extension,
      GError** error
    )

#### Description [src]

Sets the application as the default handler for the given file extension.

#### Parameters

`extension`

  Type: `const char*`

  A string containing the file extension (without the dot).

  The data is owned by the caller of the method.
  The value is a platform-native string, using the preferred OS encoding on Unix and UTF-8 on Windows.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the method if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `gboolean`

`TRUE` on success, `FALSE` on error.