Jumar Macato
4 years ago
committed by
GitHub
GitHub
8 changed files with 431 additions and 368 deletions
@ -1,170 +1,229 @@ |
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#nullable enable |
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using System; |
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using System.Collections.Generic; |
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using System.ComponentModel; |
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using System.Linq; |
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using System.Runtime.InteropServices; |
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using System.Threading.Tasks; |
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using Avalonia.Controls; |
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using Avalonia.Controls.Platform; |
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using Avalonia.MicroCom; |
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using Avalonia.Win32.Interop; |
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using Avalonia.Win32.Win32Com; |
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|
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namespace Avalonia.Win32 |
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{ |
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class SystemDialogImpl : ISystemDialogImpl |
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internal class SystemDialogImpl : ISystemDialogImpl |
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{ |
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private const UnmanagedMethods.FOS DefaultDialogOptions = UnmanagedMethods.FOS.FOS_FORCEFILESYSTEM | UnmanagedMethods.FOS.FOS_NOVALIDATE | |
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UnmanagedMethods.FOS.FOS_NOTESTFILECREATE | UnmanagedMethods.FOS.FOS_DONTADDTORECENT; |
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private const uint SIGDN_FILESYSPATH = 0x80058000; |
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|
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public unsafe Task<string[]> ShowFileDialogAsync(FileDialog dialog, Window parent) |
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private const FILEOPENDIALOGOPTIONS DefaultDialogOptions = FILEOPENDIALOGOPTIONS.FOS_FORCEFILESYSTEM | FILEOPENDIALOGOPTIONS.FOS_NOVALIDATE | |
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FILEOPENDIALOGOPTIONS.FOS_NOTESTFILECREATE | FILEOPENDIALOGOPTIONS.FOS_DONTADDTORECENT; |
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|
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public unsafe Task<string[]?> ShowFileDialogAsync(FileDialog dialog, Window parent) |
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{ |
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var hWnd = parent?.PlatformImpl?.Handle?.Handle ?? IntPtr.Zero; |
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return Task.Factory.StartNew(() => |
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return Task.Run(() => |
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{ |
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string[] result = default; |
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|
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Guid clsid = dialog is OpenFileDialog ? UnmanagedMethods.ShellIds.OpenFileDialog : UnmanagedMethods.ShellIds.SaveFileDialog; |
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Guid iid = UnmanagedMethods.ShellIds.IFileDialog; |
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UnmanagedMethods.CoCreateInstance(ref clsid, IntPtr.Zero, 1, ref iid, out object unk); |
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var frm = (UnmanagedMethods.IFileDialog)unk; |
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string[]? result = default; |
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try |
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{ |
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var clsid = dialog is OpenFileDialog ? UnmanagedMethods.ShellIds.OpenFileDialog : UnmanagedMethods.ShellIds.SaveFileDialog; |
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var iid = UnmanagedMethods.ShellIds.IFileDialog; |
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var frm = UnmanagedMethods.CreateInstance<IFileDialog>(ref clsid, ref iid); |
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|
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var openDialog = dialog as OpenFileDialog; |
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var openDialog = dialog as OpenFileDialog; |
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|
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uint options; |
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frm.GetOptions(out options); |
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options |= (uint)(DefaultDialogOptions); |
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if (openDialog?.AllowMultiple == true) |
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options |= (uint)UnmanagedMethods.FOS.FOS_ALLOWMULTISELECT; |
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frm.SetOptions(options); |
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var options = frm.Options; |
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options |= DefaultDialogOptions; |
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if (openDialog?.AllowMultiple == true) |
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{ |
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options |= FILEOPENDIALOGOPTIONS.FOS_ALLOWMULTISELECT; |
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} |
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frm.SetOptions(options); |
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|
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var defaultExtension = (dialog as SaveFileDialog)?.DefaultExtension ?? ""; |
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frm.SetDefaultExtension(defaultExtension); |
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frm.SetFileName(dialog.InitialFileName ?? ""); |
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frm.SetTitle(dialog.Title ?? ""); |
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var defaultExtension = (dialog as SaveFileDialog)?.DefaultExtension ?? ""; |
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fixed (char* pExt = defaultExtension) |
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{ |
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frm.SetDefaultExtension(pExt); |
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} |
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|
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var filters = new List<UnmanagedMethods.COMDLG_FILTERSPEC>(); |
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if (dialog.Filters != null) |
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{ |
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foreach (var filter in dialog.Filters) |
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var initialFileName = dialog.InitialFileName ?? ""; |
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fixed (char* fExt = initialFileName) |
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{ |
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var extMask = string.Join(";", filter.Extensions.Select(e => "*." + e)); |
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filters.Add(new UnmanagedMethods.COMDLG_FILTERSPEC { pszName = filter.Name, pszSpec = extMask }); |
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frm.SetFileName(fExt); |
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} |
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} |
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if (filters.Count == 0) |
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filters.Add(new UnmanagedMethods.COMDLG_FILTERSPEC { pszName = "All files", pszSpec = "*.*" }); |
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|
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frm.SetFileTypes((uint)filters.Count, filters.ToArray()); |
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frm.SetFileTypeIndex(0); |
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var title = dialog.Title ?? ""; |
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fixed (char* tExt = title) |
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{ |
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frm.SetTitle(tExt); |
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} |
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|
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if (dialog.Directory != null) |
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{ |
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UnmanagedMethods.IShellItem directoryShellItem; |
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Guid riid = UnmanagedMethods.ShellIds.IShellItem; |
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if (UnmanagedMethods.SHCreateItemFromParsingName(dialog.Directory, IntPtr.Zero, ref riid, out directoryShellItem) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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fixed (void* pFilters = FiltersToPointer(dialog.Filters, out var count)) |
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{ |
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frm.SetFolder(directoryShellItem); |
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frm.SetDefaultFolder(directoryShellItem); |
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frm.SetFileTypes((ushort)count, pFilters); |
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} |
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} |
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|
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if (frm.Show(hWnd) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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{ |
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if (openDialog?.AllowMultiple == true) |
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frm.SetFileTypeIndex(0); |
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|
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if (dialog.Directory != null) |
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{ |
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UnmanagedMethods.IShellItemArray shellItemArray; |
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((UnmanagedMethods.IFileOpenDialog)frm).GetResults(out shellItemArray); |
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uint count; |
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shellItemArray.GetCount(out count); |
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result = new string[count]; |
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for (uint i = 0; i < count; i++) |
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var riid = UnmanagedMethods.ShellIds.IShellItem; |
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if (UnmanagedMethods.SHCreateItemFromParsingName(dialog.Directory, IntPtr.Zero, ref riid, out var directoryShellItem) |
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== (uint)UnmanagedMethods.HRESULT.S_OK) |
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{ |
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UnmanagedMethods.IShellItem shellItem; |
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shellItemArray.GetItemAt(i, out shellItem); |
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result[i] = GetAbsoluteFilePath(shellItem); |
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var proxy = MicroComRuntime.CreateProxyFor<IShellItem>(directoryShellItem, true); |
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frm.SetFolder(proxy); |
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frm.SetDefaultFolder(proxy); |
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} |
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} |
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else |
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|
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frm.Show(hWnd); |
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|
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if (openDialog?.AllowMultiple == true) |
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{ |
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UnmanagedMethods.IShellItem shellItem; |
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if (frm.GetResult(out shellItem) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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using var fileOpenDialog = frm.QueryInterface<IFileOpenDialog>(); |
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var shellItemArray = fileOpenDialog.Results; |
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var count = shellItemArray.Count; |
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|
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var results = new List<string>(); |
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for (int i = 0; i < count; i++) |
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{ |
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result = new string[] { GetAbsoluteFilePath(shellItem) }; |
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var shellItem = shellItemArray.GetItemAt(i); |
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if (GetAbsoluteFilePath(shellItem) is { } selected) |
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{ |
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results.Add(selected); |
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} |
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} |
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result = results.ToArray(); |
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} |
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else if (frm.Result is { } shellItem |
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&& GetAbsoluteFilePath(shellItem) is { } singleResult) |
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{ |
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result = new[] { singleResult }; |
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} |
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} |
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return result; |
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}); |
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return result; |
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} |
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catch (COMException ex) |
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{ |
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if ((uint)ex.HResult == (uint)UnmanagedMethods.HRESULT.E_CANCELLED) |
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{ |
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return result; |
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} |
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throw new Win32Exception(ex.HResult); |
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} |
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})!; |
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} |
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|
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public Task<string> ShowFolderDialogAsync(OpenFolderDialog dialog, Window parent) |
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public unsafe Task<string?> ShowFolderDialogAsync(OpenFolderDialog dialog, Window parent) |
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{ |
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return Task.Factory.StartNew(() => |
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return Task.Run(() => |
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{ |
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string result = default; |
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string? result = default; |
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try |
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{ |
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var hWnd = parent?.PlatformImpl?.Handle?.Handle ?? IntPtr.Zero; |
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var clsid = UnmanagedMethods.ShellIds.OpenFileDialog; |
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var iid = UnmanagedMethods.ShellIds.IFileDialog; |
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var frm = UnmanagedMethods.CreateInstance<IFileDialog>(ref clsid, ref iid); |
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|
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var hWnd = parent?.PlatformImpl?.Handle?.Handle ?? IntPtr.Zero; |
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Guid clsid = UnmanagedMethods.ShellIds.OpenFileDialog; |
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Guid iid = UnmanagedMethods.ShellIds.IFileDialog; |
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var options = frm.Options; |
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options = FILEOPENDIALOGOPTIONS.FOS_PICKFOLDERS | DefaultDialogOptions; |
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frm.SetOptions(options); |
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UnmanagedMethods.CoCreateInstance(ref clsid, IntPtr.Zero, 1, ref iid, out object unk); |
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var frm = (UnmanagedMethods.IFileDialog)unk; |
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uint options; |
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frm.GetOptions(out options); |
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options |= (uint)(UnmanagedMethods.FOS.FOS_PICKFOLDERS | DefaultDialogOptions); |
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frm.SetOptions(options); |
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frm.SetTitle(dialog.Title ?? ""); |
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var title = dialog.Title ?? ""; |
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fixed (char* tExt = title) |
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{ |
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frm.SetTitle(tExt); |
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} |
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|
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if (dialog.Directory != null) |
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{ |
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UnmanagedMethods.IShellItem directoryShellItem; |
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Guid riid = UnmanagedMethods.ShellIds.IShellItem; |
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if (UnmanagedMethods.SHCreateItemFromParsingName(dialog.Directory, IntPtr.Zero, ref riid, out directoryShellItem) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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if (dialog.Directory != null) |
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{ |
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frm.SetFolder(directoryShellItem); |
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var riid = UnmanagedMethods.ShellIds.IShellItem; |
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if (UnmanagedMethods.SHCreateItemFromParsingName(dialog.Directory, IntPtr.Zero, ref riid, out var directoryShellItem) |
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== (uint)UnmanagedMethods.HRESULT.S_OK) |
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{ |
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var proxy = MicroComRuntime.CreateProxyFor<IShellItem>(directoryShellItem, true); |
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frm.SetFolder(proxy); |
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frm.SetDefaultFolder(proxy); |
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} |
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} |
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} |
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|
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if (dialog.Directory != null) |
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{ |
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UnmanagedMethods.IShellItem directoryShellItem; |
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Guid riid = UnmanagedMethods.ShellIds.IShellItem; |
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if (UnmanagedMethods.SHCreateItemFromParsingName(dialog.Directory, IntPtr.Zero, ref riid, out directoryShellItem) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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frm.Show(hWnd); |
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if (frm.Result is not null) |
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{ |
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frm.SetDefaultFolder(directoryShellItem); |
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result = GetAbsoluteFilePath(frm.Result); |
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} |
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} |
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if (frm.Show(hWnd) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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return result; |
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} |
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catch (COMException ex) |
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{ |
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UnmanagedMethods.IShellItem shellItem; |
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if (frm.GetResult(out shellItem) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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if ((uint)ex.HResult == (uint)UnmanagedMethods.HRESULT.E_CANCELLED) |
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{ |
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result = GetAbsoluteFilePath(shellItem); |
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return result; |
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} |
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throw new Win32Exception(ex.HResult); |
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} |
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return result; |
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}); |
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} |
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private string GetAbsoluteFilePath(UnmanagedMethods.IShellItem shellItem) |
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private unsafe string? GetAbsoluteFilePath(IShellItem shellItem) |
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{ |
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IntPtr pszString; |
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if (shellItem.GetDisplayName(UnmanagedMethods.SIGDN_FILESYSPATH, out pszString) == (uint)UnmanagedMethods.HRESULT.S_OK) |
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var pszString = new IntPtr(shellItem.GetDisplayName(SIGDN_FILESYSPATH)); |
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if (pszString != IntPtr.Zero) |
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{ |
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if (pszString != IntPtr.Zero) |
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try |
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{ |
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try |
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{ |
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return Marshal.PtrToStringAuto(pszString); |
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} |
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finally |
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{ |
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Marshal.FreeCoTaskMem(pszString); |
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} |
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return Marshal.PtrToStringUni(pszString); |
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} |
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finally |
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{ |
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Marshal.FreeCoTaskMem(pszString); |
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} |
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} |
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return default; |
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} |
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|
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private unsafe byte[] FiltersToPointer(List<FileDialogFilter>? filters, out int lenght) |
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{ |
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if (filters == null || filters.Count == 0) |
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{ |
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filters = new List<FileDialogFilter> |
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{ |
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new FileDialogFilter { Name = "All files", Extensions = new List<string> { "*" } } |
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}; |
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} |
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|
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var size = Marshal.SizeOf<UnmanagedMethods.COMDLG_FILTERSPEC>(); |
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var arr = new byte[size]; |
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var resultArr = new byte[size * filters.Count]; |
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for (int i = 0; i < filters.Count; i++) |
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{ |
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var filter = filters[i]; |
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var filterPtr = Marshal.AllocHGlobal(size); |
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try |
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{ |
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var filterStr = new UnmanagedMethods.COMDLG_FILTERSPEC |
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{ |
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pszName = filter.Name ?? string.Empty, |
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pszSpec = string.Join(";", filter.Extensions.Select(e => "*." + e)) |
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}; |
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Marshal.StructureToPtr(filterStr, filterPtr, false); |
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Marshal.Copy(filterPtr, resultArr, i * size, size); |
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} |
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finally |
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{ |
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Marshal.FreeHGlobal(filterPtr); |
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} |
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} |
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lenght = filters.Count; |
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return resultArr; |
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} |
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} |
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} |
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|
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@ -0,0 +1,191 @@ |
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@clr-namespace Avalonia.Win32.Win32Com |
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@clr-access internal |
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@clr-map FLOAT float |
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@clr-map HSTRING IntPtr |
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@clr-map Vector2 System.Numerics.Vector2 |
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@clr-map Vector3 System.Numerics.Vector3 |
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@clr-map Quaternion System.Numerics.Quaternion |
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@clr-map Matrix4x4 System.Numerics.Matrix4x4 |
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@clr-map RECT Avalonia.Win32.Interop.UnmanagedMethods.RECT |
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@clr-map SIZE Avalonia.Win32.Interop.UnmanagedMethods.SIZE |
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@clr-map POINT Avalonia.Win32.Interop.UnmanagedMethods.POINT |
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@clr-map HWND IntPtr |
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@clr-map BOOL int |
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@clr-map DWORD int |
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@clr-map boolean int |
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@clr-map BYTE byte |
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@clr-map INT16 short |
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@clr-map INT32 int |
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@clr-map INT64 long |
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@clr-map UINT ushort |
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@clr-map UINT16 ushort |
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@clr-map ULONG uint |
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@clr-map UINT32 uint |
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@clr-map UINT64 ulong |
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@clr-map DOUBLE double |
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@clr-map GUID System.Guid |
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@clr-map REFGUID System.Guid* |
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@clr-map REFIID System.Guid* |
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@clr-map WCHAR System.Char |
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|
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[flags] |
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enum FILEOPENDIALOGOPTIONS |
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{ |
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FOS_OVERWRITEPROMPT = 0x00000002, |
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FOS_STRICTFILETYPES = 0x00000004, |
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FOS_NOCHANGEDIR = 0x00000008, |
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FOS_PICKFOLDERS = 0x00000020, |
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FOS_FORCEFILESYSTEM = 0x00000040, // Ensure that items returned are filesystem items. |
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FOS_ALLNONSTORAGEITEMS = 0x00000080, // Allow choosing items that have no storage. |
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FOS_NOVALIDATE = 0x00000100, |
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FOS_ALLOWMULTISELECT = 0x00000200, |
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FOS_PATHMUSTEXIST = 0x00000800, |
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FOS_FILEMUSTEXIST = 0x00001000, |
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FOS_CREATEPROMPT = 0x00002000, |
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FOS_SHAREAWARE = 0x00004000, |
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FOS_NOREADONLYRETURN = 0x00008000, |
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FOS_NOTESTFILECREATE = 0x00010000, |
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FOS_HIDEMRUPLACES = 0x00020000, |
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FOS_HIDEPINNEDPLACES = 0x00040000, |
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FOS_NODEREFERENCELINKS = 0x00100000, |
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FOS_DONTADDTORECENT = 0x02000000, |
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FOS_FORCESHOWHIDDEN = 0x10000000, |
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FOS_DEFAULTNOMINIMODE = 0x20000000 |
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} |
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|
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[ |
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object, |
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uuid(43826d1e-e718-42ee-bc55-a1e261c37bfe), |
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pointer_default(unique) |
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] |
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interface IShellItem : IUnknown |
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{ |
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HRESULT BindToHandler( |
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[in, unique] void* pbc, |
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[in] REFGUID bhid, |
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[in] REFIID riid, |
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[out, iid_is(riid)] void** ppv); |
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|
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HRESULT GetParent([out] IShellItem** ppsi); |
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|
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HRESULT GetDisplayName( |
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[in] uint sigdnName, |
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[out, string, annotation("_Outptr_result_nullonfailure_")] WCHAR** ppszName); |
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|
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HRESULT GetAttributes( |
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[in] ULONG sfgaoMask, |
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[out] ULONG* psfgaoAttribs); |
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|
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HRESULT Compare( |
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[in] IShellItem* psi, |
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[in] ULONG hint, |
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[out] int* piOrder); |
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} |
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|
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[ |
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object, |
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uuid(B63EA76D-1F85-456F-A19C-48159EFA858B), |
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pointer_default(unique) |
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] |
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interface IShellItemArray : IUnknown |
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{ |
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HRESULT BindToHandler([in, unique] void* pbc, [in] REFGUID bhid, [in] REFIID riid, [out, iid_is(riid)] void** ppvOut); |
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|
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HRESULT GetPropertyStore([in] UINT flags, [in] REFIID riid, [out, iid_is(riid)] void** ppv); |
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|
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HRESULT GetPropertyDescriptionList([in] void* keyType, [in] REFIID riid, [out, iid_is(riid)] void** ppv); |
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|
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HRESULT GetAttributes([in] int AttribFlags, [in] UINT sfgaoMask, [out] UINT* psfgaoAttribs); |
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|
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HRESULT GetCount([out] DWORD* pdwNumItems); |
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|
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HRESULT GetItemAt([in] DWORD dwIndex, [out] IShellItem** ppsi); |
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|
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HRESULT EnumItems([out] void** ppenumShellItems); |
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} |
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|
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[ |
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object, |
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uuid(B4DB1657-70D7-485E-8E3E-6FCB5A5C1802), |
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pointer_default(unique) |
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] |
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interface IModalWindow : IUnknown |
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{ |
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[local] |
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HRESULT Show( |
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[in, unique] HWND hwndOwner); |
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} |
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|
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[ |
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object, |
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uuid(42F85136-DB7E-439C-85F1-E4075D135FC8), |
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pointer_default(unique) |
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] |
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interface IFileDialog : IModalWindow |
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{ |
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HRESULT SetFileTypes( |
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[in] UINT cFileTypes, |
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[in, size_is(cFileTypes)] void* rgFilterSpec); |
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|
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HRESULT SetFileTypeIndex([in] UINT iFileType); |
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|
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HRESULT GetFileTypeIndex([out] UINT* piFileType); |
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|
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HRESULT Advise( |
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[in] void* pfde, |
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[out] DWORD* pdwCookie); |
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|
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HRESULT Unadvise([in] DWORD dwCookie); |
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|
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HRESULT SetOptions([in] FILEOPENDIALOGOPTIONS fos); |
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|
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HRESULT GetOptions([out] FILEOPENDIALOGOPTIONS* pfos); |
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|
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HRESULT SetDefaultFolder([in] IShellItem* psi); |
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|
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HRESULT SetFolder([in] IShellItem* psi); |
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|
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HRESULT GetFolder([out] IShellItem** ppsi); |
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|
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HRESULT GetCurrentSelection([out] IShellItem** ppsi); |
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|
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HRESULT SetFileName([in, string] WCHAR* pszName); |
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|
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HRESULT GetFileName([out, string] WCHAR** pszName); |
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|
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HRESULT SetTitle([in, string] WCHAR* pszTitle); |
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|
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HRESULT SetOkButtonLabel([in, string] WCHAR* pszText); |
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|
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HRESULT SetFileNameLabel([in, string] WCHAR* pszLabel); |
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|
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HRESULT GetResult([out] IShellItem** ppsi); |
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|
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HRESULT AddPlace( |
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[in] IShellItem* psi, |
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[in] INT32 fdap); |
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|
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HRESULT SetDefaultExtension([in, string] WCHAR* pszDefaultExtension); |
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|
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HRESULT Close([in] HRESULT hr); |
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|
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HRESULT SetClientGuid([in] REFGUID guid); |
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|
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HRESULT ClearClientData(); |
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|
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HRESULT SetFilter([in] void* pFilter); |
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} |
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|
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[ |
|||
object, |
|||
uuid(D57C7288-D4AD-4768-BE02-9D969532D960), |
|||
pointer_default(unique) |
|||
] |
|||
interface IFileOpenDialog : IFileDialog |
|||
{ |
|||
HRESULT GetResults( |
|||
[out] IShellItemArray** ppenum); |
|||
|
|||
HRESULT GetSelectedItems( |
|||
[out] IShellItemArray** ppsai); |
|||
} |
|||
Loading…
Reference in new issue