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-rw-r--r--src/tk/button.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/tk/button.c b/src/tk/button.c
index ffac9de..57e505a 100644
--- a/src/tk/button.c
+++ b/src/tk/button.c
@@ -51,6 +51,9 @@ _mftk_button_event(struct mftk_widget *w, SDL_Event *e,
switch (e->type) {
case SDL_MOUSEBUTTONUP:
if (e->button.button == SDL_BUTTON_LEFT) {
+ if (b->action == NULL) {
+ return 0;
+ }
return b->action(b->user_data);
}
break;