private void Configure(IFileOpenDialog dialog)
{
dialog.SetOptions(CreateOptions());
if (!string.IsNullOrEmpty(InitialDirectory))
{
var result = NativeMethods.SHCreateItemFromParsingName(InitialDirectory, IntPtr.Zero, typeof(IShellItem).GUID, out var item);
if (result != NativeMethods.S_OK)
{
throw new Win32Exception(result);
}
if (item != null)
{
dialog.SetFolder(item);
}
}
if (Title != null)
{
dialog.SetTitle(Title);
}
if (OkButtonLabel != null)
{
dialog.SetOkButtonLabel(OkButtonLabel);
}
}
/// <summary>
/// 向用户显示 FolderBrowser 的对话框
/// </summary>
/// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param>
/// <returns></returns>
public DialogResult ShowDialog(IWin32Window owner)
{
IntPtr handle = owner?.Handle ?? GetActiveWindow();
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
//如果选择路径不为空，则设置默认文件夹
if (!string.IsNullOrEmpty(DirectoryPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
//自定义标题
if (!string.IsNullOrEmpty(Description))
{
dialog.SetTitle(Description);
}
//是否显示隐藏文件
if (ShowHidden)
{
//本人扩展的项目
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_FORCESHOWHIDDEN);
}
else
{
//原作者代码
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
}
uint hr = dialog.Show(handle);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
DirectoryPath = path;
return(DialogResult.OK);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private static String ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory)
#endif
{
//IFileDialog ifd = dialog;
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
#if NETCOREAPP3_1_OR_GREATER
IShellItem2?initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#else
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#endif
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
//
HResult hr = dialog.Show(parentHWnd);
if (hr.ValidateDialogShowHResult())
{
dialog.GetResults(out IShellItemArray resultsArray);
#if NETCOREAPP3_1_OR_GREATER
IReadOnlyList <String?> fileNames = Utility.GetFileNames(resultsArray);
#else
IReadOnlyList <String> fileNames = Utility.GetFileNames(resultsArray);
#endif
if (fileNames.Count == 0)
{
return(null);
}
else
{
return(fileNames[0]);
}
}
else
{
// User cancelled.
return(null);
}
}
public DialogResult ShowDialog(IWin32Window owner)
{
IntPtr hwndOwner = owner != null ? owner.Handle : GetActiveWindow();
try {
if (Environment.OSVersion.Version.Major >= 6)
{
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try {
IShellItem item;
if (!string.IsNullOrEmpty(DirectoryPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetTitle(Title);
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
DirectoryPath = path;
return(DialogResult.OK);
} finally {
Marshal.ReleaseComObject(dialog);
}
}
else
{
return(showDefaultDialogEx(owner));
}
} catch (Exception ex) {
return(showDefaultDialog(owner));
}
}
private static String[] ShowDialogInner(IFileOpenDialog dialog, IntPtr parentWindowHandle, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex, FileOpenOptions flags)
{
flags = flags |
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
HResult result = dialog.Show(parentWindowHandle);
if (result == HResult.Ok)
{
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames);
}
else if (result == HResult_Win32_Canceled)
{
// Cancelled by user.
return(null);
}
else
{
UInt32 win32ErrorCode = Utility.Win32ErrorFromHResult((UInt32)result);
throw new Win32Exception(error: (Int32)win32ErrorCode);
}
}
private static IReadOnlyList <String> ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex, FileOpenOptions flags)
#endif
{
flags = flags |
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
#if NETCOREAPP3_1_OR_GREATER
IShellItem2?initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#else
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#endif
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
//
HResult hr = dialog.Show(parentHWnd);
if (hr.ValidateDialogShowHResult())
{
dialog.GetResults(out IShellItemArray resultsArray);
IReadOnlyList <String> fileNames = Utility.GetFileNames(resultsArray);
return(fileNames);
}
else
{
// User cancelled.
return(null);
}
}
public DialogResult ShowDialog(IWin32Window owner)
{
IShellItem result = null;
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
if (!string.IsNullOrEmpty(SelectedPath))
{
SelectInitialPath(dialog, SelectedPath);
}
else if (!string.IsNullOrEmpty(SelectedDesktopAbsoluteParsing))
{
SelectInitialPath(dialog, SelectedDesktopAbsoluteParsing);
}
if (!string.IsNullOrWhiteSpace(Title))
{
dialog.SetTitle(Title);
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_ALLNONSTORAGEITEMS);
uint hr = dialog.Show(owner != null ? owner.Handle : IntPtr.Zero);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out result);
string path;
result.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
result.GetDisplayName(SIGDN.SIGDN_NORMALDISPLAY, out path);
SelectedNormalDisplay = path;
result.GetDisplayName(SIGDN.SIGDN_DESKTOPABSOLUTEPARSING, out path);
SelectedDesktopAbsoluteParsing = path;
result.GetDisplayName(SIGDN.SIGDN_URL, out path);
SelectedUrl = path;
return(DialogResult.OK);
}
private static String[] ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex, FileOpenOptions flags)
{
flags = flags |
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
HResult result = dialog.Show(parentHWnd);
HResult cancelledAsHResult = Utility.HResultFromWin32((int)HResult.Win32ErrorCanceled);
if (result == cancelledAsHResult)
{
// Cancelled
return(null);
}
else
{
// OK
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames);
}
}
private bool ShowDialog(IntPtr hwndOwner)
{
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
if (!string.IsNullOrEmpty(InitialDirectory))
{
var dir1 = InitialDirectory;
dir1 = Environment.ExpandEnvironmentVariables(dir1); // expand environment variables
dir1 = Path.GetFullPath(dir1); // resolve relative path
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(dir1, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
dialog.SetTitle(Title);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
_folderName = string.Empty;
return(false);
}
if (hr != 0)
{
_folderName = string.Empty;
return(false);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
_folderName = path;
return(true);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private static String ShowDialogInner(IFileOpenDialog dialog, IntPtr parentWindowHandle, String title, String initialDirectory)
{
//IFileDialog ifd = dialog;
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
HResult result = dialog.Show(parentWindowHandle);
if (result == HResult.Ok)
{
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames.Length == 0 ? null : fileNames[0]);
}
else if (result == HResult_Win32_Canceled)
{
// Cancelled by user.
return(null);
}
else
{
UInt32 win32ErrorCode = Utility.Win32ErrorFromHResult((UInt32)result);
throw new Win32Exception(error: (Int32)win32ErrorCode);
}
}
/// <summary>
/// 向用户显示 FolderBrowser 的对话框
/// </summary>
/// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param>
/// <returns></returns>
public DialogResult ShowDialog(IWin32Window owner = null)
{
IntPtr hwndOwner = owner != null ? owner.Handle : GetActiveWindow();
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
if (!string.IsNullOrEmpty(SelectedPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(SelectedPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
if (!string.IsNullOrEmpty(Description))
{
dialog.SetTitle(Description);
}
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
return(DialogResult.OK);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private static String ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory)
{
//IFileDialog ifd = dialog;
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
HResult result = dialog.Show(parentHWnd);
HResult cancelledAsHResult = Utility.HResultFromWin32((int)HResult.Win32ErrorCanceled);
if (result == cancelledAsHResult)
{
// Cancelled
return(null);
}
else
{
// OK
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames.Length == 0 ? null : fileNames[0]);
}
}
private void PickItem(object sender, EventArgs e)
{
var pfd = new IFileOpenDialog();
if (pfd != null)
{
var dwOptions = pfd.GetOptions();
pfd.SetOptions(dwOptions | FILEOPENDIALOGOPTIONS.FOS_ALLNONSTORAGEITEMS | FILEOPENDIALOGOPTIONS.FOS_PICKFOLDERS);
pfd.SetTitle("Item Picker");
var hr = pfd.Show(Handle);
if (hr.Succeeded)
{
if (pfd.GetResult() is IShellItem2 psi)
{
psiDrop = psi;
StartWatching();
}
}
}
}
protected override void PerformAction(object parameter)
{
var album = parameter as FacebookPhotoAlbum;
if (album == null)
{
return;
}
string folderPath = null;
if (Utility.IsOSVistaOrNewer)
{
IFileOpenDialog pFolderDialog = null;
try
{
pFolderDialog = CLSID.CoCreateInstance <IFileOpenDialog>(CLSID.FileOpenDialog);
pFolderDialog.SetOptions(pFolderDialog.GetOptions() | FOS.NOREADONLYRETURN | FOS.PICKFOLDERS);
pFolderDialog.SetTitle(string.Format("Select where to save \"{0}\"", album.Title));
pFolderDialog.SetOkButtonLabel("Save Album");
HRESULT hr = pFolderDialog.Show(new WindowInteropHelper(Application.Current.MainWindow).Handle);
if (hr.Failed)
{
return;
}
IShellItem pItem = null;
try
{
pItem = pFolderDialog.GetResult();
folderPath = ShellUtil.GetPathFromShellItem(pItem);
}
finally
{
Utility.SafeRelease(ref pItem);
}
}
finally
{
Utility.SafeRelease(ref pFolderDialog);
}
}
else
{
var folderDialog = new System.Windows.Forms.FolderBrowserDialog
{
Description = "Choose where to save the album.",
ShowNewFolderButton = true,
};
if (folderDialog.ShowDialog() != System.Windows.Forms.DialogResult.OK)
{
return;
}
folderPath = folderDialog.SelectedPath;
}
album.SaveToFolder(folderPath, _OnAlbumSaveProgressCallback, null);
Process.Start(new ProcessStartInfo {
FileName = folderPath
});
}
protected override bool RunDialog(IntPtr hwndOwner)
{
IntPtr pDisplayName = IntPtr.Zero;
IFileOpenDialog dlg = null;
IShellItem shStartupDir = null;
try
{
dlg = (IFileOpenDialog)Activator.CreateInstance(Type.GetTypeFromCLSID(new Guid("DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7")));
FOS fos;
dlg.GetOptions(out fos);
fos = fos | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_PICKFOLDERS | FOS.FOS_NOCHANGEDIR;
dlg.SetOptions(fos);
dlg.SetTitle(this.Description);
// What if selectedPath is empty?
if (this.SelectedPath != string.Empty)
{
var startupDir = System.IO.Path.GetFullPath(this.SelectedPath);
if (System.IO.Directory.Exists(startupDir))
{
Shell32.SHCreateItemFromParsingName(startupDir, IntPtr.Zero, new Guid("43826d1e-e718-42ee-bc55-a1e261c37bfe"), out shStartupDir);
dlg.SetFolder(shStartupDir);
}
}
// FIXME: should sig be Int32 (HRESULT)?
Int32 hrResult = dlg.Show(hwndOwner);
if (hrResult == -2147023673 /* HRESULT_FROM_WIN32(ERROR_CANCELLED) */)
{
return(false);
}
else if (hrResult < 0)
{
throw System.Runtime.InteropServices.Marshal.GetExceptionForHR(hrResult);
}
IShellItem result;
dlg.GetResult(out result);
result.GetDisplayName(SIGDN.FILESYSPATH, out pDisplayName);
this.SelectedPath = System.Runtime.InteropServices.Marshal.PtrToStringUni(pDisplayName);
}
finally
{
if (pDisplayName != IntPtr.Zero)
{
System.Runtime.InteropServices.Marshal.FreeCoTaskMem(pDisplayName);
}
if (dlg != null)
{
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dlg);
}
if (shStartupDir != null)
{
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(shStartupDir);
}
}
// TODO: check if selected path exists?
return(true);
}