[Csnd] Scope of csoundApi variable in Lua

Date	2013-07-17 18:39
From	Mark Brophy
Subject	[Csnd] Scope of csoundApi variable in Lua
	I want to use the wxLua widgets library to schedule score events using csoundReadScore and csoundScoreEvent in Lua, but after I run csoundApi = ffi.load('csound64') inside a function, the csoundApi variable becomes nil after the function terminates even though the variable is global. How can I initialize Csound in one function and run score events based on user input, wxLua, in another function?

Date	2013-07-17 20:18
From	francesco
Subject	[Csnd] Re: Scope of csoundApi variable in Lua
	Hello, not an answer but You can use the Csound API in Lua/LuaJIT using require "luaCsnd6" and the CsoundAC API with require "luaCsoundAC" (if i'm correct). This is the simplest way to use Csound in Lua/LuaJIT, i guess. But maybe You already know that and need something different. Anyway, if matter below is a simple example for Python by Mr. Lazzarini translated for Lua ciao, francesco. require "luaCsnd6" cs = luaCsnd6.Csound() cs:SetOption("-+rtaudio=alsa") cs:SetOption("--nchnls=2") cs:SetOption("-d") cs:SetOption("-odac") cs:Start() perf = luaCsnd6.CsoundPerformanceThread(cs) perf:Play() for i=1, 10 do cs:CompileOrc([[ event_i "i", 1, 0, 1, 5000, 500 event_i "i", 1, 0.25, 1, 5000, 500 instr 1 k1 expon 1, p3, 0.001 a2 oscili k1*p4, p5,-1 outs a2, a2 endin ]]) luaCsnd6.csoundSleep(500) end perf:Stop() -- View this message in context: http://csound.1045644.n5.nabble.com/Scope-of-csoundApi-variable-in-Lua-tp5725736p5725737.html Sent from the Csound - General mailing list archive at Nabble.com.

Date	2013-07-18 03:41
From	Mark Brophy
Subject	Re: [Csnd] Re: Scope of csoundApi variable in Lua
	Thanks for the help. I haven't been using a performance thread so that might help me solve the problem. On Wed, Jul 17, 2013 at 1:18 PM, francesco <ilterzouomo@fastwebnet.it> wrote: Hello, not an answer but You can use the Csound API in Lua/LuaJIT using require "luaCsnd6" and the CsoundAC API with require "luaCsoundAC" (if i'm correct). This is the simplest way to use Csound in Lua/LuaJIT, i guess. But maybe You already know that and need something different. Anyway, if matter below is a simple example for Python by Mr. Lazzarini translated for Lua ciao, francesco. require "luaCsnd6" cs = luaCsnd6.Csound() cs:SetOption("-+rtaudio=alsa") cs:SetOption("--nchnls=2") cs:SetOption("-d") cs:SetOption("-odac") cs:Start() perf = luaCsnd6.CsoundPerformanceThread(cs) perf:Play() for i=1, 10 do cs:CompileOrc([[ event_i "i", 1, 0, 1, 5000, 500 event_i "i", 1, 0.25, 1, 5000, 500 instr 1 k1 expon 1, p3, 0.001 a2 oscili k1*p4, p5,-1 outs a2, a2 endin ]]) luaCsnd6.csoundSleep(500) end perf:Stop() -- View this message in context: http://csound.1045644.n5.nabble.com/Scope-of-csoundApi-variable-in-Lua-tp5725736p5725737.html Sent from the Csound - General mailing list archive at Nabble.com. Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"