Some problems about loading c library
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- Subject: Some problems about loading c library
- From: "suluyu" <suluyu@...>
- Date: 2008年6月23日 15:57:37 +0800
My project needs to call c
function from a dll in lua script. I try to write a sample with C++ builder
and Lua5.1.3, but I come up against some problems.
The c library's name is
"dllforlua.dll", the codes are:
---c library begin--------
static int lua_msgbox(lua_State*
L)
{
const char* message = luaL_checkstring(L,
1);
const char* caption = luaL_optstring(L, 2,
"");
int result = MessageBox(NULL, message, caption,
MB_YESNO);
lua_pushnumber(L, result);
return
1;
}
static const luaL_Reg mylib[]
=
{
{"msgbox", lua_msgbox},
{NULL, NULL}
};
int __declspec(dllexport)
luaopen_dllforlua(lua_State* L)
{
//lua_register(L,
"msgbox", lua_msgbox);
luaL_register(L,
"dllforlua", mylib);
return
1;
}
---c library
end----------------
The lua script is:
dllforlua =
package.loadlib("dllforlua.dll", "_luaopen_dllforlua")
dllforlua()
msgbox("Hey, it worked!", "Lua Message Box")
If use the function "lua_register", the lua script
executed successfully.
But if use the function "luaL_register", exectued
unsuccessfully,the error message is: "name conflict for module 'dllforlua' ".
If I use require in lua script, the lua script fail to execute
also.
Could someone give me any advices?
Thanks very much!
suluyu
2008年06月23日