void unifont_draw_combining(unifont_drawctx *ctx, unifont *font,
int x, int y, const wchar_t *string, int len,
int wide, int bold, int cellwidth);
+/* Return a name that will select a bigger/smaller font than this one,
+ * or NULL if no such name is available. */
+char *unifont_size_increment(unifont *font, int increment);
/*
* This function behaves exactly like the low-level unifont_create,