kaka.farm

commit 5164d9b574186f9ed117af230b4ef448b62d2b1e
parent 64f5d115a47acdb78bbfcbd45105c995ac2f7892
Author: Yuval Langer <yuval.langer@gmail.com>
Date:   Thu, 27 Jan 2022 08:37:13 +0200

Add link to the Stackoverflow solution.

Diffstat:
M
content/2022-01-27-opencv-and-gtk.md
 | 
9
++++++---

1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/content/2022-01-27-opencv-and-gtk.md b/content/2022-01-27-opencv-and-gtk.md
@@ -14,7 +14,9 @@ it originally had shown the following structure:
         - image (GtkImage)
 ```
 
-but if you want to find the mouse location, put your GtkImage inside a GtkEventBox:
+According to <https://stackoverflow.com/a/24388310/189995> `GtkImage` does not
+generate events, so if you want to find the mouse location, put your
+`GtkImage` inside a `GtkEventBox`:
 
 ```
 - window1 (GtkWindow)
@@ -24,11 +26,12 @@ but if you want to find the mouse location, put your GtkImage inside a GtkEventB
 	    - image (GtkImage)
 ```
 
-and in `eventbox` set the `Common -> Events -> Pointer Motion` so you can add a handler to the `motion-notify-event` event.
+and in `eventbox` set the `Common -> Events -> Pointer Motion` so you can add
+a handler to the `motion-notify-event` event.
 
 Now you can write your handler:
 
-```
+```python
 def on_motion_notify_event(self, *args):
     global current_mouse_location