枚举桌面的所有对象

#include "stdafx.h"

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

#pragma comment(lib, "shlwapi.lib" )
#pragma comment(lib,"shell32.lib" )

//IID_IShellFolder
#define EXPAND_SHLGUID(name, l, w1, w2) EXPAND_GUID(name, l, w1, w2, 0xC0,0,0,0,0,0,0,0x46 )
#define EXPAND_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) /
        EXTERN_C const GUID DECLSPEC_SELECTANY name /
                =  { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } }

EXPAND_SHLGUID(EXIID_IShellFolder, 0x000214E6L, 0, 0 );

int  PrintDesktop()
{
    LPMALLOC pMalloc;
    LPITEMIDLIST pidlProgFiles =  NULL;
    LPITEMIDLIST pidlItems =  NULL;
    IShellFolder *psfFirstFolder =  NULL;
    IShellFolder *psfDeskTop =  NULL;
    IShellFolder *psfProgFiles =  NULL;
    LPENUMIDLIST ppenum =  NULL;
    ULONG celtFetched;
    HRESULT hr;
    STRRET strDispName;
    TCHAR pszDisplayName[MAX_PATH];
    ULONG uAttr;
   
    CoInitialize( NULL );
    hr = SHGetMalloc(& pMalloc);
    
    hr = SHGetDesktopFolder(& psfDeskTop);

    hr = psfDeskTop->QueryInterface(EXIID_IShellFolder,(LPVOID *) & psfProgFiles);

    psfDeskTop-> Release();
    
    hr = psfProgFiles->EnumObjects(NULL,SHCONTF_FOLDERS | SHCONTF_NONFOLDERS , & ppenum);

    while( hr = ppenum->Next(1,&pidlItems, &celtFetched) == S_OK && (celtFetched) == 1 )
    {
        psfProgFiles->GetDisplayNameOf(pidlItems, SHGDN_INFOLDER, & strDispName);
        StrRetToBuf(& strDispName, pidlItems, pszDisplayName, MAX_PATH);
        printf("%s/n" ,pszDisplayName);
        if(! psfFirstFolder)
        {
            uAttr =  SFGAO_FOLDER;
            psfProgFiles->GetAttributesOf(1, (LPCITEMIDLIST *) &pidlItems, & uAttr);
            if(uAttr &  SFGAO_FOLDER)
            {
                //Here Can Do Enum Sub Folder.
                //hr = psfProgFiles->BindToObject(pidlItems, NULL, IID_IShellFolder, (LPVOID *) &psfFirstFolder);
                //psfFirstFolder->Release();
                //psfFirstFolder = NULL;
            }
        }
        pMalloc-> Free(pidlItems);
    }
    printf("/n" ,pszDisplayName);
    
    pMalloc-> Free(pidlProgFiles);
    pMalloc-> Release();
    psfProgFiles-> Release();

    CoUninitialize();
    return 0 ;
}

int main(int argc, char*  argv[])
{
    PrintDesktop();
    return 0 ;
    LPMALLOC pMalloc =  NULL;
    LPITEMIDLIST pidlProgFiles =  NULL;
    LPITEMIDLIST pidlItems =  NULL;
    IShellFolder *psfFirstFolder =  NULL;
    IShellFolder *psfDeskTop =  NULL;
    IShellFolder *psfProgFiles =  NULL;
    LPENUMIDLIST ppenum =  NULL;
    ULONG celtFetched;
    HRESULT hr;
    STRRET strDispName;
    TCHAR pszDisplayName[MAX_PATH];
    ULONG uAttr;
   
    CoInitialize( NULL );
    hr = SHGetMalloc(& pMalloc);
    
    hr = SHGetFolderLocation(NULL, CSIDL_DRIVES, NULL, NULL, & pidlProgFiles);
 
    hr = SHGetDesktopFolder(& psfDeskTop);

    hr = psfDeskTop->BindToObject(pidlProgFiles, NULL, EXIID_IShellFolder, (LPVOID *) & psfProgFiles);
    psfDeskTop-> Release();
    
    hr = psfProgFiles->EnumObjects(NULL,SHCONTF_FOLDERS | SHCONTF_NONFOLDERS , & ppenum);

    while( hr = ppenum->Next(1,&pidlItems, &celtFetched) == S_OK && (celtFetched) == 1 )
    {
        psfProgFiles->GetDisplayNameOf(pidlItems, SHGDN_INFOLDER, & strDispName);
        StrRetToBuf(& strDispName, pidlItems, pszDisplayName, MAX_PATH);
        printf("%s/n" ,pszDisplayName);
        if(! psfFirstFolder)
        {
            uAttr =  SFGAO_FOLDER;
            psfProgFiles->GetAttributesOf(1, (LPCITEMIDLIST *) &pidlItems, & uAttr);
            if(uAttr &  SFGAO_FOLDER)
            {
                //hr = psfProgFiles->BindToObject(pidlItems, NULL, EXIID_IShellFolder, (LPVOID *) &psfFirstFolder);
            }
        }
        pMalloc-> Free(pidlItems);
    }
    printf("/n" ,pszDisplayName);
    
    ppenum-> Release();
    if (psfFirstFolder)
    {
        hr = psfFirstFolder->EnumObjects(NULL,SHCONTF_FOLDERS | SHCONTF_NONFOLDERS, & ppenum);

        while( hr = ppenum->Next(1,&pidlItems, &celtFetched) == S_OK && (celtFetched) == 1 )
        {
            psfFirstFolder->GetDisplayNameOf(pidlItems, SHGDN_INFOLDER, & strDispName);
            StrRetToBuf(& strDispName, pidlItems, pszDisplayName, MAX_PATH);
            printf("%s/n" ,pszDisplayName);
            pMalloc-> Free(pidlItems);
        }
        ppenum-> Release();

        psfFirstFolder-> Release();
    }

    pMalloc-> Free(pidlProgFiles);
    pMalloc-> Release();
    psfProgFiles-> Release();

    CoUninitialize();
    return 0 ;
}

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