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Merge pull request #80 from Dijji/ProfileOnly
Profile only
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
| using System.Text; | ||
|
|
||
| namespace FileMetadataAssociationManager | ||
| { | ||
| static class PropertyHandlerTest | ||
| { | ||
| private static Guid IPropertyStoreGuid = new Guid("886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99"); | ||
|
|
||
| public static bool WindowsIgnoresOurPropertyHandler(string extension) | ||
| { | ||
| // Create a temporary file with the right extension | ||
| string fileFullName = Path.ChangeExtension( | ||
| Path.GetTempPath() + Guid.NewGuid().ToString(), extension); | ||
| using (var fs = File.Create(fileFullName)) { } | ||
|
|
||
| // Get the property store that Explorer would use | ||
| IPropertyStore ps; | ||
| bool result = true; | ||
| HResult hr = (HResult)SHGetPropertyStoreFromParsingName(fileFullName, IntPtr.Zero, | ||
| GETPROPERTYSTOREFLAGS.GPS_NO_OPLOCK | GETPROPERTYSTOREFLAGS.GPS_HANDLERPROPERTIESONLY, ref IPropertyStoreGuid, out ps); | ||
| if (hr == HResult.Ok) | ||
| { | ||
| // Look for the signature property value that marks the handler as ours | ||
| PropertyKey key; | ||
| PropVariant pv = new PropVariant(); | ||
| PropertySystemNativeMethods.PSGetPropertyKeyFromName("System.Software.ProductName", out key); | ||
| hr = ps.GetValue(key, pv); | ||
| if (hr == HResult.Ok && !pv.IsNullOrEmpty) | ||
| { | ||
| if ((pv.Value as string) == "FileMetadata") | ||
| result = false; | ||
| } | ||
| Marshal.ReleaseComObject(ps); // This release frees up the file for deletion | ||
| } | ||
|
|
||
| File.Delete(fileFullName); | ||
|
|
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| return result; | ||
| } | ||
|
|
||
| [DllImport("shell32.dll", SetLastError = true)] | ||
| public static extern int SHGetPropertyStoreFromParsingName( | ||
| [In][MarshalAs(UnmanagedType.LPWStr)] string pszPath, | ||
| IntPtr zeroWorks, | ||
| GETPROPERTYSTOREFLAGS flags, | ||
| ref Guid iIdPropStore, | ||
| [Out] out IPropertyStore propertyStore); | ||
| } | ||
|
|
||
| public enum GETPROPERTYSTOREFLAGS | ||
| { | ||
| // If no flags are specified (GPS_DEFAULT), a read-only property store is returned that includes properties for the file or item. | ||
| // In the case that the shell item is a file, the property store contains: | ||
| // 1. properties about the file from the file system | ||
| // 2. properties from the file itself provided by the file's property handler, unless that file is offline, | ||
| // see GPS_OPENSLOWITEM | ||
| // 3. if requested by the file's property handler and supported by the file system, properties stored in the | ||
| // alternate property store. | ||
| // | ||
| // Non-file shell items should return a similar read-only store | ||
| // | ||
| // Specifying other GPS_ flags modifies the store that is returned | ||
| GPS_DEFAULT = 0x00000000, | ||
| GPS_HANDLERPROPERTIESONLY = 0x00000001, // only include properties directly from the file's property handler | ||
| GPS_READWRITE = 0x00000002, // Writable stores will only include handler properties | ||
| GPS_TEMPORARY = 0x00000004, // A read/write store that only holds properties for the lifetime of the IShellItem object | ||
| GPS_FASTPROPERTIESONLY = 0x00000008, // do not include any properties from the file's property handler (because the file's property handler will hit the disk) | ||
| GPS_OPENSLOWITEM = 0x00000010, // include properties from a file's property handler, even if it means retrieving the file from offline storage. | ||
| GPS_DELAYCREATION = 0x00000020, // delay the creation of the file's property handler until those properties are read, written, or enumerated | ||
| GPS_BESTEFFORT = 0x00000040, // For readonly stores, succeed and return all available properties, even if one or more sources of properties fails. Not valid with GPS_READWRITE. | ||
| GPS_NO_OPLOCK = 0x00000080, // some data sources protect the read property store with an oplock, this disables that | ||
| GPS_MASK_VALID = 0x000000FF, | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// A property store | ||
| /// </summary> | ||
| [ComImport] | ||
| [Guid("886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99")] | ||
| [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] | ||
| interface IPropertyStore | ||
| { | ||
| [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)] | ||
| HResult GetCount([Out] out uint propertyCount); | ||
|
|
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| [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)] | ||
| HResult GetAt([In] uint propertyIndex, out PropertyKey key); | ||
|
|
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| [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)] | ||
| HResult GetValue([In] ref PropertyKey key, [Out] PropVariant pv); | ||
|
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| [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime), PreserveSig] | ||
| HResult SetValue([In] ref PropertyKey key, [In] PropVariant pv); | ||
|
|
||
| [PreserveSig] | ||
| [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)] | ||
| HResult Commit(); | ||
| } | ||
|
|
||
| [ComImport] | ||
| [Guid("C8E2D566-186E-4D49-BF41-6909EAD56ACC")] | ||
| [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] | ||
| interface IPropertyStoreCapabilities | ||
| { | ||
| [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)] | ||
| HResult IsPropertyWritable([In]ref PropertyKey propertyKey); | ||
| } | ||
| } |
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