FileDialog_Vista_Interop.cs source code in C# .NET

                        
Code:
                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / FileDialog_Vista_Interop.cs / 1 / FileDialog_Vista_Interop.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

#pragma warning disable 108 
namespace System.Windows.Forms 
{
    using System; 
    using System.Runtime.InteropServices;
    using System.Runtime.CompilerServices;
    using System.Text;
 
    static class FileDialogNative
    { 
        [ComImport] 
        [Guid(IIDGuid.IFileOpenDialog)]
        [CoClass(typeof(FileOpenDialogRCW))] 
        internal interface NativeFileOpenDialog : IFileOpenDialog
        { }

        [ComImport] 
        [Guid(IIDGuid.IFileSaveDialog)]
        [CoClass(typeof(FileSaveDialogRCW))] 
        internal interface NativeFileSaveDialog : IFileSaveDialog 
        { }
 
        [ComImport]
        [ClassInterface(ClassInterfaceType.None)]
        [TypeLibType(TypeLibTypeFlags.FCanCreate)]
        [Guid(CLSIDGuid.FileOpenDialog)] 
        internal class FileOpenDialogRCW
        { } 
 
        [ComImport]
        [ClassInterface(ClassInterfaceType.None)] 
        [TypeLibType(TypeLibTypeFlags.FCanCreate)]
        [Guid(CLSIDGuid.FileSaveDialog)]
        internal class FileSaveDialogRCW
        { } 

        internal class IIDGuid 
        { 
            private IIDGuid() { } // Avoid FxCop violation AvoidUninstantiatedInternalClasses
            // IID GUID strings for relevant COM interfaces 
            internal const string IModalWindow = "b4db1657-70d7-485e-8e3e-6fcb5a5c1802";
            internal const string IFileDialog = "42f85136-db7e-439c-85f1-e4075d135fc8";
            internal const string IFileOpenDialog = "d57c7288-d4ad-4768-be02-9d969532d960";
            internal const string IFileSaveDialog = "84bccd23-5fde-4cdb-aea4-af64b83d78ab"; 
            internal const string IFileDialogEvents = "973510DB-7D7F-452B-8975-74A85828D354";
            internal const string IShellItem = "43826D1E-E718-42EE-BC55-A1E261C37BFE"; 
            internal const string IShellItemArray = "B63EA76D-1F85-456F-A19C-48159EFA858B"; 
        }
 
        internal class CLSIDGuid
        {
            private CLSIDGuid() { } // Avoid FxCop violation AvoidUninstantiatedInternalClasses
            internal const string FileOpenDialog = "DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7"; 
            internal const string FileSaveDialog = "C0B4E2F3-BA21-4773-8DBA-335EC946EB8B";
        } 
 
        [ComImport()]
        [Guid(IIDGuid.IModalWindow)] 
        [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        internal interface IModalWindow
        {
 
            [PreserveSig]
            int Show([In] IntPtr parent); 
        } 

        internal enum SIATTRIBFLAGS 
        {
            SIATTRIBFLAGS_AND = 0x00000001, // if multiple items and the attributes together.
            SIATTRIBFLAGS_OR = 0x00000002, // if multiple items or the attributes together.
            SIATTRIBFLAGS_APPCOMPAT = 0x00000003, // Call GetAttributes directly on the ShellFolder for multiple attributes 
        }
 
        [ComImport] 
        [Guid(IIDGuid.IShellItemArray)]
        [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
        internal interface IShellItemArray
        {
            // Not supported: IBindCtx
 
            void BindToHandler([In, MarshalAs(UnmanagedType.Interface)] IntPtr pbc, [In] ref Guid rbhid, [In] ref Guid riid, out IntPtr ppvOut);
 
            void GetPropertyStore([In] int Flags, [In] ref Guid riid, out IntPtr ppv); 

            void GetPropertyDescriptionList([In] ref PROPERTYKEY keyType, [In] ref Guid riid, out IntPtr ppv); 

            void GetAttributes([In] SIATTRIBFLAGS dwAttribFlags, [In] uint sfgaoMask, out uint psfgaoAttribs);

            void GetCount(out uint pdwNumItems); 

            void GetItemAt([In] uint dwIndex, [MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi); 
 
            void EnumItems([MarshalAs(UnmanagedType.Interface)] out IntPtr ppenumShellItems);
        } 

        [StructLayout(LayoutKind.Sequential, Pack = 4)]
        internal struct PROPERTYKEY
        { 
            internal Guid fmtid;
            internal uint pid; 
        } 

        [ComImport()] 
        [Guid(IIDGuid.IFileDialog)]
        [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        internal interface IFileDialog
        { 
            [PreserveSig]
            int Show([In] IntPtr parent); 
 
            void SetFileTypes([In] uint cFileTypes, [In] [MarshalAs(UnmanagedType.LPArray)]COMDLG_FILTERSPEC[] rgFilterSpec);
 
            void SetFileTypeIndex([In] uint iFileType);

            void GetFileTypeIndex(out uint piFileType);
 
            void Advise([In, MarshalAs(UnmanagedType.Interface)] IFileDialogEvents pfde, out uint pdwCookie);
 
            void Unadvise([In] uint dwCookie); 

            void SetOptions([In] FOS fos); 

            void GetOptions(out FOS pfos);

            void SetDefaultFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi); 

            void SetFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi); 
 
            void GetFolder([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);
 
            void GetCurrentSelection([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

            void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName);
 
            void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);
 
            void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle); 

            void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText); 

            void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);

            void GetResult([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi); 

            void AddPlace([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, int alignment); 
 
            void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);
 
            void Close([MarshalAs(UnmanagedType.Error)] int hr);

            void SetClientGuid([In] ref Guid guid);
 
            void ClearClientData();
 
            void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter); 
        }
 
        [ComImport()]
        [Guid(IIDGuid.IFileOpenDialog)]
        [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        internal interface IFileOpenDialog : IFileDialog 
        {
            [PreserveSig] 
            int Show([In] IntPtr parent); 

            void SetFileTypes([In] uint cFileTypes, [In] ref COMDLG_FILTERSPEC rgFilterSpec); 

            void SetFileTypeIndex([In] uint iFileType);

            void GetFileTypeIndex(out uint piFileType); 

            void Advise([In, MarshalAs(UnmanagedType.Interface)] IFileDialogEvents pfde, out uint pdwCookie); 
 
            void Unadvise([In] uint dwCookie);
 
            void SetOptions([In] FOS fos);

            void GetOptions(out FOS pfos);
 
            void SetDefaultFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);
 
            void SetFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi); 

            void GetFolder([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi); 

            void GetCurrentSelection([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

            void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName); 

            void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName); 
 
            void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle);
 
            void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText);

            void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);
 
            void GetResult([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);
 
            void AddPlace([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, FileDialogCustomPlace fdcp); 

            void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension); 

            void Close([MarshalAs(UnmanagedType.Error)] int hr);

            void SetClientGuid([In] ref Guid guid); 

            void ClearClientData(); 
 
            void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter);
 
            void GetResults([MarshalAs(UnmanagedType.Interface)] out IShellItemArray ppenum);

            void GetSelectedItems([MarshalAs(UnmanagedType.Interface)] out IShellItemArray ppsai);
        } 

        [ComImport(), 
        Guid(IIDGuid.IFileSaveDialog), 
        InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        internal interface IFileSaveDialog : IFileDialog 
        {
            [PreserveSig]
            int Show([In] IntPtr parent);
 
            void SetFileTypes([In] uint cFileTypes, [In] ref COMDLG_FILTERSPEC rgFilterSpec);
 
            void SetFileTypeIndex([In] uint iFileType); 

            void GetFileTypeIndex(out uint piFileType); 

            void Advise([In, MarshalAs(UnmanagedType.Interface)] IFileDialogEvents pfde, out uint pdwCookie);

            void Unadvise([In] uint dwCookie); 

            void SetOptions([In] FOS fos); 
 
            void GetOptions(out FOS pfos);
 
            void SetDefaultFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);

            void SetFolder([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi);
 
            void GetFolder([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);
 
            void GetCurrentSelection([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi); 

            void SetFileName([In, MarshalAs(UnmanagedType.LPWStr)] string pszName); 

            void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);

            void SetTitle([In, MarshalAs(UnmanagedType.LPWStr)] string pszTitle); 

            void SetOkButtonLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszText); 
 
            void SetFileNameLabel([In, MarshalAs(UnmanagedType.LPWStr)] string pszLabel);
 
            void GetResult([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);

            void AddPlace([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, FileDialogCustomPlace fdcp);
 
            void SetDefaultExtension([In, MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);
 
            void Close([MarshalAs(UnmanagedType.Error)] int hr); 

            void SetClientGuid([In] ref Guid guid); 

            void ClearClientData();

            void SetFilter([MarshalAs(UnmanagedType.Interface)] IntPtr pFilter); 

            void SetSaveAsItem([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi); 
 
            void SetProperties([In, MarshalAs(UnmanagedType.Interface)] IntPtr pStore);
 
            void SetCollectedProperties([In, MarshalAs(UnmanagedType.Interface)] IntPtr pList, [In] int fAppendDefault);

            void GetProperties([MarshalAs(UnmanagedType.Interface)] out IntPtr ppStore);
 
            void ApplyProperties([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, [In, MarshalAs(UnmanagedType.Interface)] IntPtr pStore, [In, ComAliasName("ShellObjects.wireHWND")] ref IntPtr hwnd, [In, MarshalAs(UnmanagedType.Interface)] IntPtr pSink);
        } 
 
        [ComImport,
        Guid(IIDGuid.IFileDialogEvents), 
        InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        internal interface IFileDialogEvents
        {
            // NOTE: some of these callbacks are cancelable - returning S_FALSE means that 
            // the dialog should not proceed (e.g. with closing, changing folder); to
            // support this, we need to use the PreserveSig attribute to enable us to return 
            // the proper HRESULT 
            [PreserveSig]
            int OnFileOk([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd); 

            [PreserveSig]
            int OnFolderChanging([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd, [In, MarshalAs(UnmanagedType.Interface)] IShellItem psiFolder);
 
            void OnFolderChange([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd);
 
            void OnSelectionChange([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd); 

            void OnShareViolation([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd, [In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, out FDE_SHAREVIOLATION_RESPONSE pResponse); 

            void OnTypeChange([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd);

            void OnOverwrite([In, MarshalAs(UnmanagedType.Interface)] IFileDialog pfd, [In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, out FDE_OVERWRITE_RESPONSE pResponse); 
        }
 
        [ComImport, 
        Guid(IIDGuid.IShellItem),
        InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
        internal interface IShellItem
        {
            void BindToHandler([In, MarshalAs(UnmanagedType.Interface)] IntPtr pbc, [In] ref Guid bhid, [In] ref Guid riid, out IntPtr ppv);
 
            void GetParent([MarshalAs(UnmanagedType.Interface)] out IShellItem ppsi);
 
            void GetDisplayName([In] SIGDN sigdnName, [MarshalAs(UnmanagedType.LPWStr)] out string ppszName); 

            void GetAttributes([In] uint sfgaoMask, out uint psfgaoAttribs); 

            void Compare([In, MarshalAs(UnmanagedType.Interface)] IShellItem psi, [In] uint hint, out int piOrder);
        }
 
        internal enum SIGDN : uint
        { 
            SIGDN_NORMALDISPLAY = 0x00000000,           // SHGDN_NORMAL 
            SIGDN_PARENTRELATIVEPARSING = 0x80018001,   // SHGDN_INFOLDER | SHGDN_FORPARSING
            SIGDN_DESKTOPABSOLUTEPARSING = 0x80028000,  // SHGDN_FORPARSING 
            SIGDN_PARENTRELATIVEEDITING = 0x80031001,   // SHGDN_INFOLDER | SHGDN_FOREDITING
            SIGDN_DESKTOPABSOLUTEEDITING = 0x8004c000,  // SHGDN_FORPARSING | SHGDN_FORADDRESSBAR
            SIGDN_FILESYSPATH = 0x80058000,             // SHGDN_FORPARSING
            SIGDN_URL = 0x80068000,                     // SHGDN_FORPARSING 
            SIGDN_PARENTRELATIVEFORADDRESSBAR = 0x8007c001,     // SHGDN_INFOLDER | SHGDN_FORPARSING | SHGDN_FORADDRESSBAR
            SIGDN_PARENTRELATIVE = 0x80080001           // SHGDN_INFOLDER 
        } 

        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 4)] 
        internal struct COMDLG_FILTERSPEC
        {
            [MarshalAs(UnmanagedType.LPWStr)]
            internal string pszName; 
            [MarshalAs(UnmanagedType.LPWStr)]
            internal string pszSpec; 
        } 

        [Flags] 
        internal enum FOS : uint
        {
            FOS_OVERWRITEPROMPT = 0x00000002,
            FOS_STRICTFILETYPES = 0x00000004, 
            FOS_NOCHANGEDIR = 0x00000008,
            FOS_PICKFOLDERS = 0x00000020, 
            FOS_FORCEFILESYSTEM = 0x00000040, // Ensure that items returned are filesystem items. 
            FOS_ALLNONSTORAGEITEMS = 0x00000080, // Allow choosing items that have no storage.
            FOS_NOVALIDATE = 0x00000100, 
            FOS_ALLOWMULTISELECT = 0x00000200,
            FOS_PATHMUSTEXIST = 0x00000800,
            FOS_FILEMUSTEXIST = 0x00001000,
            FOS_CREATEPROMPT = 0x00002000, 
            FOS_SHAREAWARE = 0x00004000,
            FOS_NOREADONLYRETURN = 0x00008000, 
            FOS_NOTESTFILECREATE = 0x00010000, 
            FOS_HIDEMRUPLACES = 0x00020000,
            FOS_HIDEPINNEDPLACES = 0x00040000, 
            FOS_NODEREFERENCELINKS = 0x00100000,
            FOS_DONTADDTORECENT = 0x02000000,
            FOS_FORCESHOWHIDDEN = 0x10000000,
            FOS_DEFAULTNOMINIMODE = 0x20000000 
        }
 
        internal enum FDE_SHAREVIOLATION_RESPONSE 
        {
            FDESVR_DEFAULT = 0x00000000, 
            FDESVR_ACCEPT = 0x00000001,
            FDESVR_REFUSE = 0x00000002
        }
 
        internal enum FDE_OVERWRITE_RESPONSE
        { 
            FDEOR_DEFAULT = 0x00000000, 
            FDEOR_ACCEPT = 0x00000001,
            FDEOR_REFUSE = 0x00000002 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.


                        

                        

                        
                        

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