AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Use a C# dll from Java          AppletTalk.com Forum Index -> Java Help View previous topic :: View next topic   Author Message cirudinezidane@gmail.com Guest Posted: Tue May 15, 2007 4:10 am    Post subject: Use a C# dll from Java Hi! I would like to use a chsarp dynamic library from my Java application. How I can use all functions from Java? I am beginner in Java but I read about jni. Thanks. Greetings Back to top Gordon Beaton Guest Posted: Tue May 15, 2007 10:37 am    Post subject: Re: Use a C# dll from Java On 14 May 2007 16:10:27 -0700, cirudinezidane (AT) gmail (DOT) com wrote: Quote: I would like to use a chsarp dynamic library from my Java application. How I can use all functions from Java? I am beginner in Java but I read about jni. If you have an existing DLL it doesn't matter what language it was written in, as long as its functions can be called using C calling conventions. To use the DLL from Java, write a set of wrapper methods in C that can be called from Java according to the rules of JNI, and create a new DLL from those. From there you can call the functions in the DLL. i.e. Java => new (JNI) DLL => existing C# DLL /gordon -- Back to top Ian Wilson Guest Posted: Tue May 15, 2007 2:01 pm    Post subject: Re: Use a C# dll from Java Gordon Beaton wrote: Quote: On 14 May 2007 16:10:27 -0700, cirudinezidane (AT) gmail (DOT) com wrote: I would like to use a chsarp dynamic library from my Java application. How I can use all functions from Java? I am beginner in Java but I read about jni. If you have an existing DLL it doesn't matter what language it was written in, as long as its functions can be called using C calling conventions. To use the DLL from Java, write a set of wrapper methods in C that can be called from Java according to the rules of JNI, and create a new DLL from those. From there you can call the functions in the DLL. i.e. Java => new (JNI) DLL => existing C# DLL That's interesting. If I use C# to create MyApp.exe I can't run it on a PC that doesn't have a CLR installed (.NET, Mono, etc.) This is obviously because the file MyApp.exe contains CIL not x86 object code. I've assumed the DLL's produced by C# similarly contain CIL and are not normal DLLs and also depend on the CLR. So would that be Jar/Class => JVM => JNI => DLL(C) => CLR => DLL(C#) How much of this applies to non-MS platforms using Mono or dotGNU? Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         AppletTalk.com Forum Index -> Java Help All times are GMT Page 1 of 1   Jump to: Select a forum Java Newsgroups----------------Java DiscussionsWeb-based java games comp.lang.java 3D Graphics API's for Java Java: Support and criticism Java System Announcements comp.lang.java.api JavaBeans Java and CORBA Java and Databases comp.lang.java.developer Java GUI Toolkits Java Help comp.lang.java.javascript JVM, native methods and hardware comp.lang.java.misc Java Language Programming Security and Java comp.lang.java.setup Java Software Tools comp.lang.java.tech ibm.software.java.linux  Non-English Java Newsgroups----------------Java Language (German)Language Java (Français)Java (Italian)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.