Question

（SDK）全局钩子问题 大神指点下

DLL代码;(.H)
#define MYLIBAPI __declspec(dllexport)
MYLIBAPI LRESULT CALLBACK hookpro(int nCode,WPARAM wParam,LPARAM lParam);
(.CPP )
#include "windows.h"
#include "mylib.h"

LRESULT CALLBACK hookpro(int nCode,WPARAM wParam,LPARAM lParam)
{ DeleteFile("D\\:heshan.txt");
return 0;
}

exe代码：
#include <windows.h>
#pragma comment(lib,"dll制作.lib")
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR szCmdLine,int iCmdShow)
{
HINSTANCE dllhinst=LoadLibrary("dll制作.dll");
SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)hookpro,dllhinst,0);
return 0;
}
问题：为什么不能编译啊D:\vc\MSDev98\MyProjects\dll制作\mylib\g.cpp(12) : error C2065: 'hookpro' : undeclared identifier

Answer 1

你也没有定义这个函数，你用的是静态加载，你吧头文件包含进去
//注意.lib，.dll都放在工程目录下
#include <windows.h>
#inlude"mylib.h"
#pragma comment(lib,"dll制作.lib")
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR szCmdLine,int iCmdShow)
{
SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)hookpro,dllhinst,0);
return 0;
}