oledb32: Implement conversion from DBTYPE_GUID to DBTYPE_STR/DBTYPE_WSTR/DBTYPE_BSTR.

dlls/oledb32/convert.c

@@ -336,6 +336,22 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
         case DBTYPE_UI4:         hr = VarBstrFromUI4(*(DWORD*)src, LOCALE_USER_DEFAULT, 0, d);         break;
         case DBTYPE_I8:          hr = VarBstrFromI8(*(LONGLONG*)src, LOCALE_USER_DEFAULT, 0, d);       break;
         case DBTYPE_UI8:         hr = VarBstrFromUI8(*(ULONGLONG*)src, LOCALE_USER_DEFAULT, 0, d);     break;
+        case DBTYPE_GUID:
+        {
+            WCHAR szBuff[39];
+            const GUID *id = (const GUID *)src;
+            WCHAR format[] = {
+                '{','%','0','8','X','-','%','0','4','X','-','%','0','4','X','-',
+                '%','0','2','X','%','0','2','X','-',
+                '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','}',0};
+            wsprintfW(szBuff, format,
+                id->Data1, id->Data2, id->Data3,
+                id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
+                id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
+            *d = SysAllocString(szBuff);
+            hr = *d ? S_OK : E_OUTOFMEMORY;
+        }
+        break;
         default: FIXME("Unimplemented conversion %04x -> BSTR\n", src_type); return E_NOTIMPL;
         }
         break;

dlls/oledb32/tests/convert.c

@@ -1240,12 +1240,11 @@ static void test_converttowstr(void)
     memcpy(src, &IID_IDataConvert, sizeof(GUID));
     memset(dst, 0xcc, sizeof(dst));
     hr = IDataConvert_DataConvert(convert, DBTYPE_GUID, DBTYPE_WSTR, 0, &dst_len, src, &dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
-    todo_wine {
     ok(hr == S_OK, "got %08x\n", hr);
     ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
     ok(dst_len == 76, "got %d\n", dst_len);
     ok(!lstrcmpW(dst, guid_str), "got %s\n", wine_dbgstr_w(dst));
-    }
+
 
 
     b = SysAllocString(ten);
@@ -1605,12 +1604,11 @@ static void test_converttostr(void)
     memcpy(src, &IID_IDataConvert, sizeof(GUID));
     memset(dst, 0xcc, sizeof(dst));
     hr = IDataConvert_DataConvert(convert, DBTYPE_GUID, DBTYPE_STR, 0, &dst_len, src, &dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
-    todo_wine {
     ok(hr == S_OK, "got %08x\n", hr);
     ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
     ok(dst_len == 38, "got %d\n", dst_len);
     ok(!lstrcmpA(dst, guid_str), "got %s\n", dst);
-    }
+
 
 
     b = SysAllocString(ten);