C++???????????????÷??
???????????? ???????[ 2013/5/13 10:20:28 ] ????????
????????????????????У?????????????????????Щ??????????????а??????????г????????DLL???????????????????????????????????????????????????е?????????????????á?Windows API?е????к???????????DLL?С???????3???????DLL??Kernel32.dll?????????????????楨??????????????????User32.dll???????????????????????????細(xì)????????????????????????????GDI32.dll?????????????????????????????????
???????????????????????
????1?????????
????2?????????
?????????????????????????????????
?????????????????????????????
int _stdcall add(int a??int b)
{
return a+b;
}
int _stdcall subtract(int a??int b)
{
return a-b;
}
????????DLL????????????????????????????????????涼?????????_declspec(dllexport)
_declspec(dllexport) int _stdcall add(int a??int b)
{
return a+b;
}
_declspec(dllexport) int _stdcall subtract(int a??int b)
{
return a-b;
}
???????????????鶨?????.def???е???
????LIBRARY DllName
????EXPORTS
????add
????subtract
????????????????????????????£??????ο?C++???????????????
???????????????????????????????lib????????dll???????????lib????????????
?????????????????????????????????????(?????????.LIB)??????t?????????£??????????????????????????????и?????Щ????????????????????ó????????????????????????????????(.EXE???)??
????????????????????????????????????????????DLL????????????DLL???????????????????????DLL??????????????????????????????????????????????????DLL?е??????????????????????????????У??????е???????????DLL??????DLL?е??????????
??????????????ɡ?
???????????????????????????????????????????????????Щ????????????????????????????????lib?????????????????????????? ??????->????->???????????????????????
???????????????DLL??????????????????????DDL???????????????????????????????????DLL?е???????????
????????????????????????????????????LoadLibrary
??????MSDN?У?
????HMODULE WINAPI LoadLibrary(
????__in LPCTSTR lpFileName
????);
????Maps the specified executable module into the address space of the calling process.
????????????????????????????????鵽???y????????????巽?????£?
????MFC????
HINSTANCE hInst;
hInst=LoadLibrary("Dll3.dll");//??Dll3??????????????
typedef int (/*_stdcall*/ *addFunPro)(int a??int b);//???????????????????????????????????????????溯?????
addFunPro AddFun=(addFunPro)GetProcAddress(hInst??MAKEINTRESOURCE(1));//??????????????
if(!AddFun)
{
MessageBox("??????????????");
return;
}
CString str;
str.Format("5+3=%d"??AddFun(5??3));//???????????????м??????
MessageBox(str);
FreeLibrary(hInst);
??????

???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11