set canvas dirty when circle drawn

1 files changed, 1 insertions, 1 deletions

diff --git a/widget.h b/widget.h
index 87ef504..d722541 100644
--- a/widget.h
+++ b/widget.h
@@ -85,4 +85,4 @@ typedef struct {
 int w_init_canvas(w_Canvas *c, const char *bg_img_path);
 void w_free_canvas(w_Canvas *c);
 void w_canvas(mu_Context *ctx, w_Canvas *canvas);
-void w_canvas_draw_circle(w_Canvas canvas, int x, int y, int r, mu_Color color);
+void w_canvas_draw_circle(w_Canvas *canvas, int x, int y, int r, mu_Color color);