#include <afxwin.h> 
 
class CMyApp:public CWinApp 
{ 
    BOOL InitInstance(); 
};

#include "main.h" 
#include <afxdlgs.h> 
 
CMyApp theApp; 
 
BOOL CMyApp::InitInstance() 
{ 
    CFileDialog dlg(TRUE); 
    if (dlg.DoModal() != IDOK) 
    { 
        return FALSE; 
    } 
    //打開文件 
    HANDLE hFile = ::CreateFile(dlg.GetPathName(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); 
    if (INVALID_HANDLE_VALUE == hFile) 
    { 
        return FALSE; 
    } 
    IMAGE_DOS_HEADER dosHeader; 
    IMAGE_NT_HEADERS32 ntHeader; 
    DWORD dwReturn; 
    BOOL bIsPe=FALSE; 
    ::ReadFile(hFile, &dosHeader, sizeof(IMAGE_DOS_HEADER), &dwReturn, NULL); 
    if (dwReturn == sizeof(IMAGE_DOS_HEADER)) 
    { 
        if (dosHeader.e_magic == IMAGE_DOS_SIGNATURE) //mz 
        { 
            if (-1 != ::SetFilePointer(hFile, dosHeader.e_lfanew, NULL, FILE_BEGIN)) 
            { 
                ::ReadFile(hFile, &ntHeader, sizeof(IMAGE_NT_HEADERS32), &dwReturn, NULL); 
                if (dwReturn == sizeof(IMAGE_NT_HEADERS32)) 
                { 
                    if (ntHeader.Signature == IMAGE_NT_SIGNATURE) //pe 
                    { 
                        bIsPe = TRUE; 
                    } 
                } 
            } 
        } 
    } 
    ::CloseHandle(hFile); //與上面的CreateFile區對寫 
    if (bIsPe) 
    { 
        MessageBoxA(NULL, "is a pe file", "", MB_OK); 
    } 
    else 
    { 
        MessageBoxA(NULL, "not a pe file", "", MB_OK); 
    } 
    return FALSE; 
}