dll_demo.rar_DEMO_DLL Demo

#include "DLL_ADD.h" #include <stdio.h> #include <windows.h> typedef int (* MYFUN)(int ,int ); int main () { int c,a,b; HINSTANCE HDll = NULL;//DLL句柄 MYFUN Add = NULL,Sub = NULL; HANDLE thisproc = GetCurrentProcess(); //加载Dll HDll = LoadLibrary("DLL_ADD.dll"); //获取Dll文件的Add函数 Add = (MYFUN) GetProcAddress(HDll,"?Add@@YAHHH@Z"); //获取Dll文件的Sub函数 Sub = (MYFUN) GetProcAddress(HDll,"Sub"); a = 1; b = 2; if (Add != NULL) { c = Add(a,b); printf("c = a + b\n = 1 + 2\n = %d\n",c); MessageBox(NULL," 捕捉到了 F1 按键！",NULL,MB_OK); } if (Sub != NULL) { c = Sub(a,b); printf("c = a - b\n = 1 - 2\n = %d",c); } //释放Dll FreeLibrary(HDll); getchar(); return 1; }