diff --git a/gtkarea/main.c b/gtkarea/main.c
index 9207e47d..6a6d1b7e 100644
--- a/gtkarea/main.c
+++ b/gtkarea/main.c
@@ -118,6 +118,11 @@ static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *
 		e->Held1To64);
 }
 
+static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
+{
+	printf("drag broken\n");
+}
+
 static void recalcScroll(GtkSpinButton *sb, gpointer data)
 {
 	areaUpdateScroll(area);
@@ -145,6 +150,7 @@ int main(void)
 	h.ah.VScrollMax = handlerVScrollMax;
 	h.ah.RedrawOnResize = handlerRedrawOnResize;
 	h.ah.MouseEvent = handlerMouseEvent;
+	h.ah.DragBroken = handlerDragBroken;
 
 	gtk_init(NULL, NULL);
 
diff --git a/gtkarea/ui.h b/gtkarea/ui.h
index 42d79915..470d2437 100644
--- a/gtkarea/ui.h
+++ b/gtkarea/ui.h
@@ -13,6 +13,7 @@ struct uiAreaHandler {
 	uintmax_t (*VScrollMax)(uiAreaHandler *, uiArea *);
 	int (*RedrawOnResize)(uiAreaHandler *, uiArea *);
 	void (*MouseEvent)(uiAreaHandler *, uiArea *, uiAreaMouseEvent *);
+	void (*DragBroken)(uiAreaHandler *, uiArea *);
 };
 
 struct uiAreaDrawParams {
diff --git a/macarea/alt/main.m b/macarea/alt/main.m
index a6306b93..343f92fb 100644
--- a/macarea/alt/main.m
+++ b/macarea/alt/main.m
@@ -124,6 +124,11 @@ static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *
 		e->Held1To64);
 }
 
+static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
+{
+	printf("drag broken\n");
+}
+
 // areaUpdateScroll(area);
 
 @interface appDelegate : NSObject<NSApplicationDelegate, NSTextFieldDelegate>
@@ -183,6 +188,7 @@ int main(void)
 	h.ah.VScrollMax = handlerVScrollMax;
 	h.ah.RedrawOnResize = handlerRedrawOnResize;
 	h.ah.MouseEvent = handlerMouseEvent;
+	h.ah.DragBroken = handlerDragBroken;
 
 	app = [NSApplication sharedApplication];
 	[app setActivationPolicy:NSApplicationActivationPolicyRegular];
diff --git a/macarea/alt/ui.h b/macarea/alt/ui.h
index 42d79915..470d2437 100644
--- a/macarea/alt/ui.h
+++ b/macarea/alt/ui.h
@@ -13,6 +13,7 @@ struct uiAreaHandler {
 	uintmax_t (*VScrollMax)(uiAreaHandler *, uiArea *);
 	int (*RedrawOnResize)(uiAreaHandler *, uiArea *);
 	void (*MouseEvent)(uiAreaHandler *, uiArea *, uiAreaMouseEvent *);
+	void (*DragBroken)(uiAreaHandler *, uiArea *);
 };
 
 struct uiAreaDrawParams {
diff --git a/winarea/area.c b/winarea/area.c
index 9e0f2b6f..9658a1a5 100644
--- a/winarea/area.c
+++ b/winarea/area.c
@@ -425,7 +425,7 @@ static LRESULT CALLBACK areaWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
 	case WM_CAPTURECHANGED:
 		if (a->capturing) {
 			a->capturing = FALSE;
-			// TODO raise DragBroken()
+			(*(a->ah->DragBroken))(a->ah, a);
 		}
 		return 0;
 	}
diff --git a/winarea/main.c b/winarea/main.c
index a6cb2023..fbf5f434 100644
--- a/winarea/main.c
+++ b/winarea/main.c
@@ -124,6 +124,11 @@ static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *
 		e->Held1To64);
 }
 
+static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
+{
+	printf("drag broken\n");
+}
+
 static void repos(HWND hwnd)
 {
 	RECT r;
@@ -176,6 +181,7 @@ int main(void)
 	h.ah.VScrollMax = handlerVScrollMax;
 	h.ah.RedrawOnResize = handlerRedrawOnResize;
 	h.ah.MouseEvent = handlerMouseEvent;
+	h.ah.DragBroken = handlerDragBroken;
 
 	registerAreaClass();
 
diff --git a/winarea/ui.h b/winarea/ui.h
index 42d79915..470d2437 100644
--- a/winarea/ui.h
+++ b/winarea/ui.h
@@ -13,6 +13,7 @@ struct uiAreaHandler {
 	uintmax_t (*VScrollMax)(uiAreaHandler *, uiArea *);
 	int (*RedrawOnResize)(uiAreaHandler *, uiArea *);
 	void (*MouseEvent)(uiAreaHandler *, uiArea *, uiAreaMouseEvent *);
+	void (*DragBroken)(uiAreaHandler *, uiArea *);
 };
 
 struct uiAreaDrawParams {