moufiltr: Mirror mouse movement

Make the driver more interesting by mirroring mouse events, so that left movement becomes right, up movement becomes down, and so on.
microsoft · Feb 15, 2024 · 0626132 · 0626132
1 parent c73af47
commit 0626132
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/input/moufiltr/moufiltr.c b/input/moufiltr/moufiltr.c
@@ -487,6 +487,12 @@ Return Value:
     PDEVICE_EXTENSION   devExt;
     WDFDEVICE   hDevice;
 
+    // mirror mouse events in queue
+    for (MOUSE_INPUT_DATA* id = InputDataStart; id != InputDataEnd; ++id) {
+        id->LastX = -id->LastX;
+        id->LastY = -id->LastY;
+    }
+
     hDevice = WdfWdmDeviceGetWdfDeviceHandle(DeviceObject);
 
     devExt = FilterGetData(hDevice);