diff -r 5b00f1e55f4e -r 631162b266d1 ui/gtk/image.h
--- a/ui/gtk/image.h	Wed Apr 02 19:48:45 2025 +0200
+++ b/ui/gtk/image.h	Wed Apr 02 20:31:04 2025 +0200
@@ -37,6 +37,7 @@
 #endif
 
 typedef struct UiImageViewer {
+    UiObject *obj;
     GtkWidget *widget;
     UiVar *var;
     int padding_left;
@@ -56,6 +57,11 @@
     UiBool isautoscaled;
     double user_scale;
     double scale;
+    
+    ui_callback onbuttonpress;
+    void *onbuttonpressdata;
+    ui_callback onbuttonrelease;
+    void *onbuttonreleasedata;
 } UiImageViewer;
 
 void ui_cairo_draw_image(UiImageViewer *imgviewer, cairo_t *cr, int width, int height);
@@ -90,6 +96,20 @@
         gdouble y,
         gpointer userdata);
 
+void ui_imageviewer_pressed_cb(
+        GtkGestureClick *self,
+        gint n_press,
+        gdouble x,
+        gdouble y,
+        gpointer userdata);
+
+void ui_imageviewer_released_cb(
+        GtkGestureClick *self,
+        gint n_press,
+        gdouble x,
+        gdouble y,
+        gpointer userdata);
+
 #else
 
 gboolean ui_imageviewer_scroll_event(