WTL-Open file dialog of new vista/win7 style

最新的WTL库中添加了对Vista/Win7新风格文件对话框API的封装，使用起来非常方便。

1.选择文件对话框：

//#include <atldlgs.h>

COMDLG_FILTERSPEC filterSpecs[] = 

{

    {_T("Text documents(*.txt)"),_T("*.txt")},

    {_T("MS Word documents(*.doc|*.docx)"),_T("*.doc;*.docx")},

    {_T("All documents(*.*)"),_T("*.*")}

};

CShellFileOpenDialog fileOpenDlg(

    NULL,

    FOS_FORCEFILESYSTEM|FOS_FILEMUSTEXIST|FOS_PATHMUSTEXIST,

   _T("txt"),

    filterSpecs,

    _countof(filterSpecs));

fileOpenDlg.DoModal(m_hWnd);

CString filePath;

fileOpenDlg.GetFilePath(filePath);

//MessageBox(filePath,_T("File path"),MB_OK|MB_ICONINFORMATION);

2.选择文件夹对话框

CShellFileOpenDialog fileOpenDlg(

    NULL,

    FOS_FORCEFILESYSTEM|FOS_PATHMUSTEXIST|FOS_PICKFOLDERS);

fileOpenDlg.DoModal(m_hWnd);

CString folderPath;

fileOpenDlg.GetFilePath(folderPath);

MessageBox(folderPath,_T("Folder path"),MB_OK|MB_ICONINFORMATION);