键盘钩子为什么不行啊解决办法

键盘钩子为什么不行啊？
//钩子头文件：keybdhook.h

#define DllExport extern "C"__declspec(dllexport)

DllExport void WINAPI InstallHook(void); 
//DllImport void EndHook(void); 
LRESULT CALLBACK KeyBoardProc(int nCode,WPARAM wParam, LPARAM lParam ); 

//钩子实现文件：keybdhook.cpp

// keybdhook.cpp : Defines the entry point for the DLL application.
//

#include "stdafx.h"
#include "windows.h"
#include "keybdhook.h"
#include "string.h"
#include "stdio.h" 
HINSTANCE hInst = NULL; 
static HHOOK hkb=NULL;
//HINSTANCE hins; //钩子函数所在模块的句柄
//HHOOK oldkeyhook = NULL;
#pragma data_seg("hookdata")
HHOOK oldkeyhook=0; 
#pragma data_seg()

#pragma comment(linker,"/SECTION:hookdata,RWS")

//#define DllExport extern "C"__declspec(dllexport)

BOOL APIENTRY DllMain( HANDLE hModule, 
  DWORD ul_reason_for_call, 
  LPVOID lpReserved
)
{
  return TRUE;
}
void WINAPI InstallHook(void)
{
oldkeyhook = SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyBoardProc,hInst,0); 
}

LRESULT CALLBACK KeyBoardProc(int nCode,WPARAM wParam, LPARAM lParam )
{
WPARAM j; 
FILE *fp; 
fp=fopen("c:\\hookkey.txt","a"); 
fwrite("test",4,1,fp);
if(lParam&0x80000000)
{
j = wParam; 

fwrite("test",4,1,fp);
fprintf(fp,"%4d",j); 
fclose(fp); 
}

return CallNextHookEx(oldkeyhook,nCode,wParam,lParam); 
}

*************************************************************************
测试keybdhooktest.h

#include "windows.h"
#include "../keybdhook/keybdhook.h"
#define DllImport extern"C"__declspec(dllimport)

DllImport void WINAPI InstallHook();
////////////////////////
keybdhooktest.cpp
//////////////////////
// keybdhooktest.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "keybdhooktest.h"

int main(int argc, char* argv[])
{
printf("Hello World!\n");
InstallHook();
// SetKeyboardHook(0,0);
while(1)
{
Sleep(50);
}
return 0;
}



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接分
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接分
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--b
jf.
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wo jie
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接。。。
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分？是什么？
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接分