OLE uses VARIANT_TRUE and not TRUE for its boolean values.

VARIANT_TRUE is -1, unlike TRUE which is just 1, and we must use the former
and not the latter with OLE VARIANT values.

Closes #12910.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66814 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/ole/oleutils.cpp

@@ -161,7 +161,7 @@ WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& ole
     else if (type == wxT("bool"))
     {
         oleVariant.vt = VT_BOOL;
-        oleVariant.boolVal = variant.GetBool();
+        oleVariant.boolVal = variant.GetBool() ? VARIANT_TRUE : VARIANT_FALSE;
     }
     else if (type == wxT("string"))
     {