 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
.NET Forum / .NET Framework / .NET SDK / May 2004Type Library conversion problem
(Type your message here) I tried using the tlbimp.exe utility of .NET sdk to import a type library(a C API) to a compatible assembly code. I was succesful at doing that and was able to Add a Reference to the namespace i assigned. However when I tried to get the function of the imported assembly code its not there!!The enumtypes, deftypes, constants were present except for all the functions innate to the library. Has anyone encountered the same scenario? Should i program it now in unmanaged code using .NET's interop services if im unsuccessful of doing the latter one? >Has anyone encountered the same scenario? Should i program it now in unmanaged code using .NET's interop services if im unsuccessful of doing the latter one? Were these functions in a module in the typelib? TlbImp imports pretty much anything (coclasses, interfaces and so on) except modules, so that would explain the missing functions. I have a semi working tool that reads typelib modules and generates DllImport methods for the the functions. If you want you can mail me the typelib and I'll see if it generates something useful. Mattias  SignatureMattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com Please reply only to the newsgroup. Using P/Invoke how would i know that i should be passing "by value" or "by reference" to the arguments of a method or function of the DLL 2. Equivalent type in .Net of the used data type for each variable (e.g what's the equivalent type of BSTR in VB.Net/C# 3. In the type library it says VARIANT_BOOL _stdcall NE_QueryElementByID [in] long net, [in] ElementTypeEnum eltype, [in, out] IDAttRec* id, [in, out] HandleAttRec* h) This is the way i called it in VB.Net...is this correct .. <DllImport("neteng.dll")> Public Shared Function NE_QueryElementByID(ByRef net As Long, ByRef eltype As ElementTypeEnum, ByRef id As IDAttRec, ByRef h As HandleAttRec) As Boolea End Functio .. Dim h1 As HandleAttRec hi.Handle = Dim id1 As IDAttRec Dim m_startid As Int32 = 442 id1.UserID = 9 id1.LayerKey = dim bol as Boolean = NE_QueryElementByID(net, ElementTypeEnum.NE_EDGE, id1, h1 Tnx a lot! >2. Equivalent type in .Net of the used data type for each variable (e.g what's the equivalent type of BSTR in VB.Net/C#? <MarshalAs(UnmanagedType.BStr)> String >This is the way i called it in VB.Net...is this correct? >... ><DllImport("neteng.dll")> _ >Public Shared Function NE_QueryElementByID(ByRef net As Long, ByRef eltype As ElementTypeEnum, ByRef id As IDAttRec, ByRef h As HandleAttRec) As Boolean >End Function No, but try Public Shared Function NE_QueryElementByID(ByVal net As Integer, ByVal eltype As ElementTypeEnum, ByRef id As IDAttRec, ByRef h As HandleAttRec) As <MarshalAs(UnmanagedType.VariantBool)> Boolean Mattias SignatureMattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com Please reply only to the newsgroup. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2009 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.