From 6683bb7e2f166a8b2a01a6ff5cb41c493fbd0f77 Mon Sep 17 00:00:00 2001
From: Prince Kumar <x.prince.x@outlook.com>
Date: Wed, 9 Oct 2024 00:14:33 +0530
Subject: [PATCH] Fixed [Environment] OpenCV NULL guiReceiver error during
 pre-commit testing .

added a check to see if a window is available, or create one if its not.
---
 src/utils/interaction.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/utils/interaction.py b/src/utils/interaction.py
index 1036f5b3..aba5e754 100644
--- a/src/utils/interaction.py
+++ b/src/utils/interaction.py
@@ -38,6 +38,9 @@ def show(name, origin, pause=1, resize=False, reset_pos=None, config=None):
         else:
             img = origin
 
+        if not is_window_available(name):
+            cv2.namedWindow(name)
+
         cv2.imshow(name, img)
 
         if reset_pos:
@@ -92,3 +95,13 @@ def wait_q():
     while cv2.waitKey(1) & 0xFF not in [ord("q"), esc_key]:
         pass
     cv2.destroyAllWindows()
+
+
+def is_window_available(name: str) -> bool:
+    """Checks if a window is available"""
+    try:
+        cv2.getWindowProperty(name, cv2.WND_PROP_VISIBLE)
+        return True
+    except Exception as e:
+        print(e)
+        return False