Fix TYPE_E_ELEMENTNOTFOUND HRESULT constant value. (#883)

* Fix incorrect HRESULT constant value for `TYPE_E_ELEMENTNOTFOUND`.

The constant for `TYPE_E_ELEMENTNOTFOUND` was defined with an incorrect
integer value, which did not correspond to the official HRESULT `0x8002802B`.

This change corrects the value to `-2147319765`.

* test: Verify HRESULT for GetTypeInfoOfGuid with null GUID.

Assert that calling `ITypeLib::GetTypeInfoOfGuid` with a null GUID
raises a `COMError` with the specific HRESULT
`TYPE_E_ELEMENTNOTFOUND`.

* Refactor: Use `IID_IFile` constant in `test_typeinfo.py`.

In `comtypes/test/test_typeinfo.py`, the hardcoded GUID for `IFile`
was replaced with the `IID_IFile` constant to improve readability.

Author: junkmd

comtypes/hresult.py

@@ -27,7 +27,7 @@
 CONNECT_E_ADVISELIMIT = -2147220991
 CONNECT_E_NOCONNECTION = -2147220992
 
-TYPE_E_ELEMENTNOTFOUND = -2147352077  # 0x8002802BL
+TYPE_E_ELEMENTNOTFOUND = -2147319765  # 0x8002802B
 
 TYPE_E_REGISTRYACCESS = -2147319780  # 0x8002801CL
 TYPE_E_CANTLOADLIBRARY = -2147312566  # 0x80029C4AL

comtypes/test/test_typeinfo.py

@@ -4,6 +4,7 @@
 import unittest
 from ctypes.wintypes import MAX_PATH
 
+import comtypes.hresult
 from comtypes import GUID, COMError
 from comtypes.typeinfo import (
     TKIND_DISPATCH,
@@ -84,16 +85,17 @@ def test_TypeInfo(self):
                 ti.GetVarDesc(v)
 
         guid_null = GUID()
-        with self.assertRaises(COMError):
+        with self.assertRaises(COMError) as cm:
             tlib.GetTypeInfoOfGuid(guid_null)
+        self.assertEqual(comtypes.hresult.TYPE_E_ELEMENTNOTFOUND, cm.exception.hresult)
 
-        guid = GUID("{C7C3F5A4-88A3-11D0-ABCB-00A0C90FFFC0}")
-        ti = tlib.GetTypeInfoOfGuid(guid)
+        IID_IFile = GUID("{C7C3F5A4-88A3-11D0-ABCB-00A0C90FFFC0}")
+        ti = tlib.GetTypeInfoOfGuid(IID_IFile)
         c_tlib, c_index = ti.GetContainingTypeLib()
         c_ti = c_tlib.GetTypeInfo(c_index)
         self.assert_tlibattr_equal(c_tlib, tlib)
         self.assertEqual(c_ti, ti)
-        self.assertEqual(guid, ti.GetTypeAttr().guid)
+        self.assertEqual(IID_IFile, ti.GetTypeAttr().guid)
 
 
 class Test_GetModuleFileName(unittest.TestCase):