The region grab size 0.

BoboTiG · Nov 8, 2023 · 5c8888f · 5c8888f
1 parent 0e5808d
commit 5c8888f
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/src/mss/windows.py b/src/mss/windows.py
@@ -107,7 +107,7 @@ def __init__(self, /, **kwargs: Any) -> None:
 
         # Available thread-specific variables
         self._handles = local()
-        self._handles.region_width_height = (0, 0)
+        self._handles.region_width_height = None
         self._handles.bmp = None
         self._handles.srcdc = self.user32.GetWindowDC(0)
         self._handles.memdc = self.gdi32.CreateCompatibleDC(self._handles.srcdc)

diff --git a/src/tests/test_windows.py b/src/tests/test_windows.py
@@ -96,3 +96,10 @@ def test_thread_safety_regions():
     thread2.start()
     thread1.join()
     thread2.join()
+
+
+def test_region_zero():
+    """The region grab size 0."""
+    with mss.mss() as sct:
+        region0 = {"top": 0, "left": 0, "width": 0, "height": 0}
+        sct.grab(region0)