diff --git a/reactos/subsystems/win32/win32k/objects/arc.c b/reactos/subsystems/win32/win32k/objects/arc.c
index 8712accf3e0..1dd398313d8 100644
--- a/reactos/subsystems/win32/win32k/objects/arc.c
+++ b/reactos/subsystems/win32/win32k/objects/arc.c
@@ -466,6 +466,38 @@ IntGdiArcInternal(
           rc1.left, rc1.top, rc1.right, rc1.bottom, arctype);
 }
 
+BOOL
+APIENTRY
+NtGdiAngleArc(
+    IN HDC hdc,
+    IN INT x,
+    IN INT y,
+    IN DWORD dwRadius,
+    IN DWORD dwStartAngle,
+    IN DWORD dwSweepAngle)
+{
+  DC *dc;
+  BOOL Ret = FASLE;
+
+  dc = DC_LockDc (hDC);
+  if(!dc)
+  {
+    SetLastWin32Error(ERROR_INVALID_HANDLE);
+    return FALSE;
+  }
+  if (dc->DC_Type == DC_TYPE_INFO)
+  {
+    DC_UnlockDc(dc);
+    /* Yes, Windows really returns TRUE in this case */
+    return TRUE;
+  }
+
+
+  DC_UnlockDc( dc );
+  return Ret;
+
+}
+
 BOOL
 STDCALL
 NtGdiArcInternal(
diff --git a/reactos/subsystems/win32/win32k/objects/line.c b/reactos/subsystems/win32/win32k/objects/line.c
index 41711922b6d..199b34da5b2 100644
--- a/reactos/subsystems/win32/win32k/objects/line.c
+++ b/reactos/subsystems/win32/win32k/objects/line.c
@@ -375,21 +375,6 @@ IntGdiPolyPolyline(DC      *dc,
 
 /******************************************************************************/
 
-BOOL
-APIENTRY
-NtGdiAngleArc(
-    IN HDC hdc,
-    IN INT x,
-    IN INT y,
-    IN DWORD dwRadius,
-    IN DWORD dwStartAngle,
-    IN DWORD dwSweepAngle)
-{
-    UNIMPLEMENTED;
-    return FALSE;
-}
-
-
 BOOL
 STDCALL
 NtGdiLineTo(HDC  hDC,