PCSCCardRequest: add hack for Windows

On Windows, when the last reader is disconnected the application gets SCARD_E_SYSTEM_CANCELLED or SCARD_E_NO_SERVICE errors.
LudovicRousseau · Oct 20, 2024 · 770a11a · 770a11a
1 parent ce01504
commit 770a11a
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/smartcard/pcsc/PCSCCardRequest.py b/src/smartcard/pcsc/PCSCCardRequest.py
@@ -253,6 +253,10 @@ def waitforcard(self):
             elif SCARD_E_UNKNOWN_READER == hresult:
                 pass
 
+            # this happens on Windows when the last reader is disconnected
+            elif hresult in (SCARD_E_SYSTEM_CANCELLED, SCARD_E_NO_SERVICE):
+                pass
+
             # some error happened
             elif SCARD_S_SUCCESS != hresult:
                 raise CardRequestException(
@@ -381,6 +385,10 @@ def waitforcardevent(self):
             elif SCARD_E_UNKNOWN_READER == hresult:
                 pass
 
+            # this happens on Windows when the last reader is disconnected
+            elif hresult in (SCARD_E_SYSTEM_CANCELLED, SCARD_E_NO_SERVICE):
+                pass
+
             # some error happened
             elif SCARD_S_SUCCESS != hresult:
                 raise CardRequestException(