一个windows shell extension的例子

时间：2010-10-05 来源：wochi

下面的例子演示了windows shell扩展编程的一般方法———获取目录c:\program files\下的对象，然后再列出改目录下的第一个子目录中的对象。

#include "stdafx.h" #include <Shlobj.h> #include <Shlwapi.h>
int _tmain(int argc, _TCHAR* argv[]) {    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 = SHGetFolderLocation(NULL, CSIDL_PROGRAM_FILES, NULL, NULL, &pidlProgFiles);
// hr = SHGetFolderLocation(NULL, CSIDL_DESKTOP, NULL, NULL, &pidlProgFiles);
   hr = SHGetDesktopFolder(&psfDeskTop);
   hr = psfDeskTop->BindToObject(pidlProgFiles, NULL, IID_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)    {    HRESULT ret = psfProgFiles->GetDisplayNameOf(pidlItems, SHGDN_INFOLDER, &strDispName); if(FAILED(ret))continue;    ret = StrRetToBuf(&strDispName, pidlItems, pszDisplayName, MAX_PATH); if(FAILED(ret))continue; MessageBox(NULL,pszDisplayName,_T("1111"),0); wprintf(_T("%s\n"),pszDisplayName);    if(!psfFirstFolder)    {    uAttr = SFGAO_FOLDER;    psfProgFiles->GetAttributesOf(1, (LPCITEMIDLIST *) &pidlItems, &uAttr);    if(uAttr & SFGAO_FOLDER)    {    hr = psfProgFiles->BindToObject(pidlItems, NULL, IID_IShellFolder, (LPVOID *) &psfFirstFolder);    }    }    CoTaskMemFree(pidlItems);    }
   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); wprintf(_T("%s\n"),pszDisplayName);    CoTaskMemFree(pidlItems);    }    }
   ppenum->Release();    CoTaskMemFree(pidlProgFiles);    psfProgFiles->Release();    psfFirstFolder->Release();
   CoUninitialize();    return 0; }

在vs2008中配置SDK 7.0:

开始> 所有程序 > Microsoft Windows SDK v7.0 > Visual Studio Registration > Windows SDK Configuration Tool.

然后在下拉框选择 SDK v7