[Mono-dev] Interop with Native Libraries Question
Hello everyone. Please help me translating one function in the correct way I have a library from which I have to use some methods which is written in C++. The method I need to correctly translate is this: *integer method_name(const void* a_handle, char* name, int* length)* Now, what I tried looks like this: *[DllImport (libraryName, EntryPoint = "method_name", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static unsafe extern integer EXT_method_name(void* handle, out string name, out int length);* when I test the code I receive an integer that informs me that I delivered Invalid parameters Next I tried this: *[DllImport (libraryName, EntryPoint = "method_name", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static unsafe extern integer EXT_method_name(void* handle, StringBuilder name, ref int length);* this doesn't work either Then I tried this: *[DllImport (libraryName, EntryPoint = "method_name", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static unsafe extern integer EXT_method_name(IntPtr handle, StringBuilder name, out int length);* and this doesn't work either :( I have a similar method which works and looks like this: *integer method_name(const void* a_handle, int* length) *And my working "translation" is this: *[DllImport (libraryName, EntryPoint = "method_name", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static unsafe extern integer EXT_method_name(void* handle, out int length);* Any ideas about what I did wrong? I'm a total newbie with Interop communication :) I understood correctly that when I pass strings as parameters to that external method I have to Marshal them, but when I need strings as output... how should I do this? In mono's wiki there is an example with StringBuilder (the strncpy example), but either I did something wrong or some different approach is needed. Thank you for all your efforts in helping me With kind regards, Sebastian begin:vcard fn:Sebi Onofrei n:Onofrei;Sebastian org:Eyepartner Inc.;C# & Delphi development adr:;;Luca Arbore, 18, 512A, P/1;Iasi;Iasi;;Romania email;internet:[EMAIL PROTECTED] title:Mr tel;work:+40 745 337579 tel;home:+40 332 443465 tel;cell:+40 765 133948 note;quoted-printable:Hello,=0D=0A= =0D=0A= In case any problems related with Monster Encoder or Deskshare applicatio= ns appear, please feel free to create/update a proper ticket containing= some relevant details about the involved problem and notify me.=0D=0A= =0D=0A= Thank you x-mozilla-html:TRUE url:http://onofrei.org version:2.1 end:vcard ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Interop with Native Libraries Question
On Wed, 2008-03-05 at 12:09 +0200, Sebi Onofrei wrote: > I have a library from which I have to use some methods which is > written in C++. First, make sure the C++ methods are declared `extern "C"`. > The method I need to correctly translate is this: > integer method_name(const void* a_handle, char* name, int* length) Do you have the source code to `method_name' that you can provide? What is the actual type of `integer'? void* is usually an IntPtr. Is `name' an input parameter or an output parameter? If `name' is an input parameter, it should be `string' in your P/Invoke. If it's an output parameter (e.g. the `dest' parameter in strcpy(3)), StringBuilder should work. Does `length' need to have a valid value before the call? If it does, `ref int' should be used, otherwise `out int'. > Next I tried this: > [DllImport (libraryName, EntryPoint = "method_name", CharSet = > CharSet.Auto, CallingConvention = CallingConvention.StdCall)] > private static unsafe extern integer EXT_method_name(void* > handle, StringBuilder name, ref int length); > this doesn't work either In what way doesn't this work? `integer' isn't a valid C# type (unless it's a type of your own creation). > Then I tried this: > [DllImport (libraryName, EntryPoint = "method_name", CharSet = > CharSet.Auto, CallingConvention = CallingConvention.StdCall)] > private static unsafe extern integer EXT_method_name(IntPtr > handle, StringBuilder name, out int length); > and this doesn't work either :( Again, in what way does this fail? Also keep in mind that the StringBuilder needs to have space allocated *before* the method call; see: http://mono-project.com/Dllimport#Passing_Caller-Modifiable_Strings > In mono's wiki there is an example with StringBuilder (the strncpy > example), but either I did something wrong or some different approach > is needed. Alas, without seeing the caller-side code, it's difficult to say. My best guess is that you're not providing a Capacity to the StringBuilder instance you provide. It would also be helpful to know in what way the method is failing. - Jon ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] NUnit in Mono.
On Tue, Dec 18, 2007 at 5:07 AM, Charlie Poole <[EMAIL PROTECTED]> wrote: > Hi Miguel, > > Apparently, nobody else remembers either. :-) > > I suggest upgrading to 2.4.x if possible, and I'll take on any > bug fixes to NUnit needed to make it happen. > > Charlie > > > > -Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf > > Of Miguel de Icaza > > Sent: Wednesday, December 12, 2007 1:51 PM > > To: mono-devel-list > > Subject: [Mono-dev] NUnit in Mono. > > > > > > Hello, > > > > Currently we ship NUnit 2.2.0 with Mono, and am wondering > > if we should be upgrading to a newer version of NUnit, and > > include all the assemblies that we do not seem to be distributing. > > > > I do not remember the reasons that we had to keep the > > NUnit at the current version. Hi, has anyone looked into this? Will mono ship NUnit 2.4.6? ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Possible bug in r97246 - trunk/mcs/class/System.Drawing/System.Drawing
I will look into this tomorrow, cheers. On Tue, Mar 4, 2008 at 9:40 AM, Andreas Nahr <[EMAIL PROTECTED]> wrote: > The change in r97246 is likely buggy, because the comparison is now done on > the current locale but should likely be ordinalIgnoreCase or > InvariantIgnoreCase. > > Happy Hacking > Andreas > > ___ > Mono-devel-list mailing list > Mono-devel-list@lists.ximian.com > http://lists.ximian.com/mailman/listinfo/mono-devel-list > -- Ivan N. Zlatev Web: http://www.i-nZ.net "It's all some kind of whacked out conspiracy." ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Installing policy file in the GAC?
Hi, I'm writing an install script that places an assembly into the GAC using gacutil. However, with the assembly, I also need to install a policy file to control backward compatibility with previous version. I know that the policy file needs to go into the lib/mono/gac directory. But how do I get it there? gacutil won't install a policy file in the GAC because the policy file isn't an assembly. So, obviously, I have to copy it there from the install script. But how can the install script find out where Mono is installed? Is there any command I can use to get at the Mono installation directory? Thanks, Michi. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Installing policy file in the GAC?
> > gacutil won't install a policy file in the GAC because the policy file isn't > an assembly. So, obviously, I have to copy it there from the install script. > But how can the install script find out where Mono is installed? Is there > any command I can use to get at the Mono installation directory? > You don't copy the file directly - but use the assembly linker (al.exe) to create an assembly based on the configuration file: al /link:policy-file.config /out:policy.1.0.YourAssembly.dll /keyfile:YourAssemblyKey.snk then you can just gacutil on the generated assembly: gacutil -i policy.1.0.YourAssembly.dll See http://msdn2.microsoft.com/en-us/library/dz32563a(vs.71).aspx Carlos. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Mono 1.9.0 Preview 4 is out!!
Hey Everyone, We've just released Mono 1.9.0 Preview 4 today! Please help us out by giving it a try with your applications. As always, you can get the preview releases here: http://mono.ximian.com/monobuild/preview/download-preview/ Please report any bugs that you may find using our Bugs page, AND reply to this thread with the bug numbers so we can track them! http://www.mono-project.com/Bugs You can see the bugs we're tracking for Mono 1.9.0 here: https://bugzilla.novell.com/buglist.cgi?bug_file_loc_type=allwordssubstr&bug_file_loc=http%3A%2F%2Fwww.go-mono.com%2Farchive%2F1.9%2F&order=bugs.bug_status%20 The earlier you file the bugs and reply to this message, the more likely your bugs will get fixed. Special attention is given to regressions, so if you can tell us a version of Mono where the bug worked and you tag the summary of the bug with [Regression], then it is much more likely your bug will get fixed. Please help the Mono team to make 1.9.0 the best release of Mono ever. Thanks again! Mono QA ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Host offer
Hello everyone, I bought some time ago a host / domain and I have no time at the moment to use it. So, can you use it for mirroring purposes? Total disk space: 5Gb Per month traffic limit: 250Gb hosted by godaddy I would really like to set-up some sort of mirroring there, even with apt / yum support, etc So if this will help you, please let me know With kind regards, Sebi begin:vcard fn:Sebi Onofrei n:Onofrei;Sebastian org:Eyepartner Inc.;C# & Delphi development adr:;;Luca Arbore, 18, 512A, P/1;Iasi;Iasi;;Romania email;internet:[EMAIL PROTECTED] title:Mr tel;work:+40 745 337579 tel;home:+40 332 443465 tel;cell:+40 765 133948 note;quoted-printable:Hello,=0D=0A= =0D=0A= In case any problems related with Monster Encoder or Deskshare applicatio= ns appear, please feel free to create/update a proper ticket containing= some relevant details about the involved problem and notify me.=0D=0A= =0D=0A= Thank you x-mozilla-html:TRUE url:http://onofrei.org version:2.1 end:vcard ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Installing policy file in the GAC?
Michi Henning wrote: > But how can the install script find out where Mono is installed? Is there > any command I can use to get at the Mono installation directory? Never mind, I figured it out. Thanks, Michi. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
