There are functions with scalar string parameters (ref, value...etc) that works automatically without nay manual marshalling effort. A function returning string result in parameter works wonderfully. However, if I try to return instead of a single string in a parameter to string array, the call will fail with the general catch all message of Error calling external object.... I even tried to copy the function signature from object browser to the legacy application calling but no luck
Format of string is LPCSTR not LPWSTR. Furthermore, I think null inside the string could render the string to appear as null in messagebox in older version of the software. The legacy application is supposed to be able to use either -cstdcall or com interface. Since I use the oleobject, I assume I am using the com interface which I don't know much other than what I read from MS site. Apparently, I have not sufficiently digested and grasped the essentials to fix my problem on hand. =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
