#include "stdafx.h"
#include<windows.h>
#include<stdio.h>
#define DLL_NAME "user32.dll"
int main()
{
    BYTE* ptr;
    int position, address;
    HINSTANCE handle;
    BOOL done_flag = FALSE;
    handle = LoadLibrary(DLL_NAME);
    if(!handle)
    {
        printf("load dll erro \n");
        return 0;
    }
    ptr = (BYTE*)handle;
    for(position = 0; !done_flag; position++)
    {
        try
        {
            if(ptr[position] == 0xFF && ptr[position+1] == 0XE4)
            {
                int address = (int) ptr + position;
                printf("opcode found at 0x%x\n", address);
            }
        }
        catch(...)
        {
            int address = (int)ptr + position;
            printf("end of 0x%x\n", address);
            done_flag = true;
        }
    }
return 0;
}

上述代码可编译通过。