ShellExecuteEx 예제

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displayname 아닌 parsingname 얻어와서 호출하는 예제(IShellFolder 통해서 원하는 파일 찾는 부분 참고)
https://docs.microsoft.com/ko-kr/windows/desktop/shell/launch

#include <shlobj.h>
#include <shlwapi.h>
#include <objbase.h>

main()
{
    LPITEMIDLIST pidlWinFiles = NULL;
    LPITEMIDLIST pidlItems = NULL;
    IShellFolder *psfWinFiles = NULL;
    IShellFolder *psfDeskTop = NULL;
    LPENUMIDLIST ppenum = NULL;
    STRRET strDispName;
    TCHAR pszParseName[MAX_PATH];
    ULONG celtFetched;
    SHELLEXECUTEINFO ShExecInfo;
    HRESULT hr;
    BOOL fBitmap = FALSE;

    hr = SHGetFolderLocation(NULL, CSIDL_WINDOWS, NULL, NULL, &pidlWinFiles);

    hr = SHGetDesktopFolder(&psfDeskTop);

    hr = psfDeskTop->BindToObject(pidlWinFiles, NULL, IID_IShellFolder, (LPVOID *) &psfWinFiles);
    hr = psfDeskTop->Release();

    hr = psfWinFiles->EnumObjects(NULL,SHCONTF_FOLDERS | SHCONTF_NONFOLDERS, &ppenum);

    while( hr = ppenum->Next(1,&pidlItems, &celtFetched) == S_OK && (celtFetched) == 1)
    {
        psfWinFiles->GetDisplayNameOf(pidlItems, SHGDN_FORPARSING, &strDispName);
        StrRetToBuf(&strDispName, pidlItems, pszParseName, MAX_PATH);
        CoTaskMemFree(pidlItems);
        if(StrCmpI(PathFindExtension(pszParseName), TEXT( ".bmp")) == 0)
        {
            fBitmap = TRUE;
            break;
        }
    }

    ppenum->Release();

    if(fBitmap)
    {
        ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
        ShExecInfo.fMask = NULL;
        ShExecInfo.hwnd = NULL;
        ShExecInfo.lpVerb = NULL;
        ShExecInfo.lpFile = pszParseName;
        ShExecInfo.lpParameters = NULL;
        ShExecInfo.lpDirectory = NULL;
        ShExecInfo.nShow = SW_MAXIMIZE;
        ShExecInfo.hInstApp = NULL;

        ShellExecuteEx(&ShExecInfo);
    }

    CoTaskMemFree(pidlWinFiles);
    psfWinFiles->Release();

    return 0;
}


The application first retrieves the PIDL of the Windows directory, and enumerates its contents until it finds the first .bmp file. Unlike the earlier example, IShellFolder::GetDisplayNameOf is used to retrieve the file's parsing name instead of its display name. Because this is a file system folder, the parsing name is a fully qualified path, which is what is needed for ShellExecuteEx.
Once the first .bmp file has been located, appropriate values are assigned to the members of a SHELLEXECUTEINFO structure. The lpFile member is set to the parsing name of the file, and the lpVerb member to NULL, to begin the default operation. In this case, the default operation is "open". The structure is then passed to ShellExecuteEx, which launches the default handler for bitmap files, typically MSPaint.exe, to open the file. After the function returns, the PIDLs are freed and the Windows folder's IShellFolder interface is released.



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