Re: [Csnd] [EXTERNAL] [Csnd] VS header file issue

Date	2021-08-17 03:55
From	Jana Cole
Subject	Re: [Csnd] [EXTERNAL] [Csnd] VS header file issue
	Those instructions worked to create a .lib, csnd6.lib. I added it to the project and it runs. Nice to know I can make a .lib file next time I need to. Jana -----Original Message----- From: A discussion list for users of Csound CSOUND@LISTSERV.HEANET.IE Sent: Aug 16, 2021 12:14 PM To: CSOUND@LISTSERV.HEANET.IE Subject: Re: [Csnd] [EXTERNAL] [Csnd] VS header file issue Actually the DLL is called csnd6.dll. Not sure if there is a csnd6.lib, but you would need that to link to it. Maybe someone with a windows machine can make you a csnd6.lib from the DLL, if there is not one. Steps for this are (command-line): 1. Export the symbols > dumpbin /EXPORTS csnd6.dll > csnd6.exports 2. Create a DEF file with a line at the top EXPORTS followed by the contents of csnd6.exports 2. Create a lib file (for this you need to have the VC\/bin directory in your PATH > lib /def:csnd6.def /machine:x64 /out:csnd6.lib (source: https://stackoverflow.com/questions/9360280/how-to-make-a-lib-file-when-have-a-dll-file-and-a-header-file) ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 16 Aug 2021, at 19:57, Victor Lazzarini wrote: > > The strncpy is not an error I think, just a warning, you can ignore it. > > As csnd.lib, you should have at least a csnd.dll somewhere. It comes with Csound. If you don't, try installing the latest Csound. > > The csnd.dll is the link library containing that code. > > Prof. Victor Lazzarini > Maynooth University > Ireland > >> On Aug 16, 2021, at 7:22 PM, Jana Cole wrote: >> >> >> >> Re the API threading example: >> >> I added csPerfThread.cpp, and it solved the linker issue and gave me some new messages: an error, saying strcpy (if I remember correctly) was unsafe and needed to be changed to strcpy_s. Also some warnings about conversions. >> >> >> I looked for csnd.lib, I did a search on my C:\Program Files\Csound6_x64\lib directory and found csound64.lib, libcsound64.lib and CsoundQt-d-html-cs6.lib. >> >> I searched my csound-6.15.0 source code directory and found no lib files >> >> Did a google search on "csnd.lib", didn't find anything. >> >> Went to https://github.com/csound/csound. I'm not totally familiar with how it works, but I used the file finder and searched for csnd.lib and found nothing, then searched for .lib and found nothing. >> >> >> I imagine I missed csnd.lib somewhere. Where can it get it? >> >> >> >> >> >> -----Original Message----- >> >> From: A discussion list for users of Csound CSOUND@LISTSERV.HEANET.IE >> >> Sent: Aug 16, 2021 12:50 AM >> >> To: CSOUND@LISTSERV.HEANET.IE >> >> Subject: Re: [Csnd] [EXTERNAL] [Csnd] VS header file issue >> >> Or simply add the perf thread .cpp file to your project. >> >> >> On Mon 16 Aug 2021, 8:22 a.m. Victor Lazzarini, wrote: >> >> That's not a header issue, these are link errors, you need to add csnd.lib (the link lib for csnd.dll) to your project. That contains the symbols missing. >> >> >> Prof. Victor Lazzarini >> >> Maynooth University >> >> Ireland >> >> >> > On Aug 16, 2021, at 12:47 AM, Jana Cole wrote: >> >> > >> >> > Warning* >> >> > >> >> > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. >> >> > >> >> > Hi Everyone, >> >> > >> >> > I'm having a strange header file issue I don't know what to make of. Maybe you've seen it before. >> >> > Apparently VS can see csound.hpp but not csPerfThread.hpp. They're in the same directory! >> >> > >> >> > I've posted the errors and source code below. VS has no problem finding the Csound class, only methods in the CsoundPerformanceThread class. >> >> > What could be the problem? >> >> > >> >> > Rebuild started... >> >> > 1>------ Rebuild All started: Project: csound_api_test, Configuration: Debug x64 ------ >> >> > 1>csound_api_test.cpp >> >> > 1>C:\Program Files\Csound6_x64\include\csound\csound.hpp(437,39): warning C4244: 'return': conversion from 'int64_t' to 'long', possible loss of data >> >> > 1> Creating library C:\jana\csound\projects\csound_api_test\x64\Debug\csound_api_test.lib and object C:\jana\csound\projects\csound_api_test\x64\Debug\csound_api_test.exp >> >> > 1>csound_api_test.obj : error LNK2019: unresolved external symbol "public: void __cdecl CsoundPerformanceThread::Play(void)" (?Play@CsoundPerformanceThread@@QEAAXXZ) referenced in function main >> >> > 1>csound_api_test.obj : error LNK2019: unresolved external symbol "public: void __cdecl CsoundPerformanceThread::Stop(void)" (?Stop@CsoundPerformanceThread@@QEAAXXZ) referenced in function main >> >> > 1>csound_api_test.obj : error LNK2019: unresolved external symbol "public: int __cdecl CsoundPerformanceThread::Join(void)" (?Join@CsoundPerformanceThread@@QEAAHXZ) referenced in function main >> >> > 1>csound_api_test.obj : error LNK2019: unresolved external symbol "public: __cdecl CsoundPerformanceThread::CsoundPerformanceThread(struct CSOUND_ )" (??0CsoundPerformanceThread@@QEAA@PEAUCSOUND_@@@Z) referenced in function main >> >> > 1>csound_api_test.obj : error LNK2019: unresolved external symbol "public: __cdecl CsoundPerformanceThread::~CsoundPerformanceThread(void)" (??1CsoundPerformanceThread@@QEAA@XZ) referenced in function main >> >> > 1>C:\jana\csound\projects\csound_api_test\x64\Debug\csound_api_test.exe : fatal error LNK1120: 5 unresolved externals >> >> > 1>Done building project "csound_api_test.vcxproj" -- FAILED. >> >> > ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== >> >> > >> >> > #include >> >> > #include "csound.hpp" >> >> > #include "csPerfThread.hpp" >> >> > >> >> > int main(int argc, const char argv[]) >> >> > { >> >> > int result = 0; >> >> > Csound cs; >> >> > result = cs.Compile(argc, argv); >> >> > >> >> > if (!result) >> >> > { >> >> > CsoundPerformanceThread perfThread(cs.GetCsound()); >> >> > perfThread.Play(); // Starts performance >> >> > while (perfThread.GetStatus() == 0); >> >> > // nothing to do here... >> >> > // but you could process input events, graphics etc >> >> > perfThread.Stop(); // Stops performance. In fact, performance should have >> >> > // already finished, so this is just an example of how >> >> > //to stop if you need >> >> > perfThread.Join(); // always call Join() after Stop() as a rule of thumb. >> >> > } >> >> > else { >> >> > printf("csoundCompile returned an error\n"); >> >> > return 1; >> >> > } >> >> > >> >> > return 0; >> >> > } >> >> > >> >> > Csound mailing list >> >> > Csound@listserv.heanet.ie >> >> > https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flistserv.heanet.ie%2Fcgi-bin%2Fwa%3FA0%3DCSOUNDdata=04%7C01%7CVictor.Lazzarini%40mu.ie%7C42b805a64b5a4364f65708d9604714c1%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637646680680422340%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000sdata=pPV0NuVXsZANA3dVc%2Fl4JyXj5VudGtWdOiZoiaC9AOc%3Dreserved=0 >> >> > Send bugs reports to >> >> > https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fcsound%2Fcsound%2Fissuesdata=04%7C01%7CVictor.Lazzarini%40mu.ie%7C42b805a64b5a4364f65708d9604714c1%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637646680680422340%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000sdata=Q4JjByMpBjk67DXBVfo%2FevvKwYp8TXjVastvi6cTZiA%3Dreserved=0 >> >> > Discussions of bugs and features can be posted here >> >> >> Csound mailing list >> Csound@listserv.heanet.ie >> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >> >> Send bugs reports to >> https://github.com/csound/csound/issues >> >> Discussions of bugs and features can be posted here >> >> Csound mailing list >> Csound@listserv.heanet.iehttps://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND >> Send bugs reports to >> https://github.com/csound/csound/issues >> Discussions of bugs and features can be posted here >> >> >> >> >> >> ************************* >> Thoughts are Things >> *********************** >> >> >> >> >> *********************** >> Thoughts are Things >> *********************** >> >> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here *********************** Thoughts are Things ************************* Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here