リファレンスのページです、見当違いでしたらすみません。 Win32 and COM CDM_GETFOLDERPATH http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/userinput/commondialogboxlibrary/commondialogboxreference/commondialogboxmessages/cdm_getfolderpath.asp http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/userinput/commondialogboxlibrary.asp MFCライブラリ CFileDialog::GetFolderPath http://msdn2.microsoft.com/ja-jp/library/xz5y6xhy.aspx http://msdn2.microsoft.com/ja-jp/library/8dwz4azc.aspx