[問題] 無法呼叫DLL程式
開發平台(Platform): (Ex: VC++, GCC, Linux, ...)
DEV C++
問題(Question)：
無法呼叫 DLL 程式
我只寫了超簡單的 DLL，卻一直無法呼叫成功，麻煩大家幫我看看
預期結果：
寫入dll.txt文字
感謝之意：
如果可以幫我解決，我願送你我所有p幣的一半
程式碼：(附連結)
檔頭dll.h http://codepad.org/NYA2xYZ1
#include <iostream>
#include <string>
#ifndef _DLL_H_
#define _DLL_H_
#if BUILDING_DLL
# define DLLIMPORT __declspec (dllexport)
#else /* Not BUILDING_DLL */
# define DLLIMPORT __declspec (dllimport)
#endif /* Not BUILDING_DLL */
#ifdef __cplusplus
using namespace std;
extern "C" {
DLLIMPORT void writefile_jacky(string write_order, string write_price);
}
#endif /* _DLL_H_ */
dll主程式：dllmain.cpp http://codepad.org/qT2XWrhU
#include <iostream>
#include <fstream>
#include <string>
#include <stdio.h>
#include <stdlib.h>
using namespace std;
void writefile_jacky(string write_order, string write_price)
{
ofstream myfile;
myfile.open ("dll.txt");
myfile << "write";
myfile.close();
}
最後的主程式：main.cpp http://codepad.org/so6Xerwf
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include "windows.h"
using namespace std;
int main()
{
HMODULE hInst;
typedef int (*WRITEFILE_JACKY)(string,string);
WRITEFILE_JACKY writefile_jacky;
hInst = LoadLibrary("jacky.dll");
writefile_jacky=(WRITEFILE_JACKY) GetProcAddress(hInst,"writefile_jacky");
writefile_jacky("main","success");
FreeLibrary(hInst);
}
--
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