実行ファイルかどうかを確認 [ATL]

#include <atlfile.h>

    static bool IsPEFile(LPCTSTR lpFileName)

    {

        HRESULT hr = S_OK;

        CAtlFile file;

        hr = file.Create(lpFileName, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING);

        if (FAILED(hr))

        {

            return false;

        }

        IMAGE_DOS_HEADER dosHeader;

        hr = file.Read(&dosHeader, sizeof(IMAGE_DOS_HEADER));

        if (FAILED(hr))

        {

            return false;

        }

        return dosHeader.e_magic == 0x5A4D; /*MZ*/

    }