+/**
+ * ChimaraResourceType:
+ * @CHIMARA_RESOURCE_SOUND: A sound file.
+ * @CHIMARA_RESOURCE_IMAGE: An image file.
+ *
+ * The type of resource that the Glk program is requesting, passed to a
+ * #ChimaraResourceLoadFunc.
+ */
+typedef enum _ChimaraResourceType {
+ CHIMARA_RESOURCE_SOUND,
+ CHIMARA_RESOURCE_IMAGE
+} ChimaraResourceType;
+
+/**
+ * ChimaraResourceLoadFunc:
+ * @usage: A #ChimaraResourceType constant.
+ * @resnum: The resource number to look for.
+ * @user_data: A pointer to provide to the callback.
+ *
+ * The type of function passed to chimara_glk_set_resource_load_callback(). It
+ * takes a #ChimaraResourceType constant, @usage, to indicate what sort of
+ * resource to look for; @resnum is the resource number to look for, and
+ * @user_data is the user data provided along with the callback. The function
+ * must return an allocated string containing the filename where the resource
+ * can be found.
+ */
+typedef gchar * (*ChimaraResourceLoadFunc)(ChimaraResourceType usage, guint32 resnum, gpointer user_data);
+