/// <summary>
/// Retrieves an array of the sub-conditions.
/// </summary>
public IEnumerable <SearchCondition> GetSubConditions()
{
// Our list that we'll return
var subConditionsList = new List <SearchCondition>();
// Get the sub-conditions from the native API
object subConditionObj;
var guid = new Guid(InterfaceGuids.IEnumUnknown);
HResult hr = NativeSearchCondition.GetSubConditions(ref guid, out subConditionObj);
if (hr != HResult.S_OK)
{
throw new Exception(hr.ToString());
}
// Convert each ICondition to SearchCondition
if (subConditionObj != null)
{
var enumUnknown = subConditionObj as IEnumUnknown;
IntPtr buffer = IntPtr.Zero;
uint fetched = 0;
while (hr == HResult.S_OK)
{
hr = enumUnknown.Next(1, ref buffer, ref fetched);
if (hr == HResult.S_OK && fetched == 1)
{
subConditionsList.Add(new SearchCondition((ICondition)Marshal.GetObjectForIUnknown(buffer)));
}
}
}
return(subConditionsList);
}
/// <summary>
/// Retrieves an array of the sub-conditions.
/// </summary>
public IEnumerable <SearchCondition> GetSubConditions()
{
// Our list that we'll return
List <SearchCondition> subConditionsList = new List <SearchCondition>();
// Get the sub-conditions from the native API
object subConditionObj;
Guid guid = new Guid(ShellIIDGuid.IEnumUnknown);
HResult hr = NativeSearchCondition.GetSubConditions(ref guid, out subConditionObj);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
// Convert each ICondition to SearchCondition
if (subConditionObj != null)
{
IEnumUnknown enumUnknown = subConditionObj as IEnumUnknown;
IntPtr buffer = IntPtr.Zero;
uint fetched = 0;
while (hr == HResult.Ok)
{
hr = enumUnknown.Next(1, ref buffer, ref fetched);
if (hr == HResult.Ok && fetched == 1)
{
subConditionsList.Add(new SearchCondition((ICondition)Marshal.GetObjectForIUnknown(buffer)));
}
}
}
return(subConditionsList);
}
private static IEnumerable <string> GetFolderPlaceholdersFromDisk(ITracer tracer, PhysicalFileSystem fileSystem, string path)
{
if (!fileSystem.IsSymLink(path))
{
foreach (string directory in fileSystem.EnumerateDirectories(path))
{
if (!directory.EndsWith(Path.DirectorySeparatorChar + GVFSConstants.DotGit.Root))
{
OnDiskFileState fileState = OnDiskFileState.Full;
HResult result = Utils.GetOnDiskFileState(directory, out fileState);
if (result == HResult.Ok)
{
if (IsPlaceholder(fileState))
{
yield return(directory);
}
// Recurse into placeholders and full folders skipping the tombstones
if (!IsTombstone(fileState))
{
foreach (string placeholderPath in GetFolderPlaceholdersFromDisk(tracer, fileSystem, directory))
{
yield return(placeholderPath);
}
}
}
else if (result != HResult.FileNotFound)
{
// FileNotFound is returned for tombstones when the filter is attached to the volume so we want to
// just skip those folders. Any other HResults may cause valid folder placeholders not to be written
// to the placeholder database so we want to error out on those.
throw new InvalidDataException($"Error getting on disk file state. HResult = {result} for {directory}");
}
}
}
}
}
private void SetSafeArray(Array value)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (value.Rank > 1)
{
throw new NotSupportedException("Multidimensional arrays are not supported.");
}
var bounds = new SafeArrayBound[1];
bounds[0] = new SafeArrayBound(value.GetLength(0), value.GetLowerBound(0));
var arrayPtr = NativeMethods.OleAut32.SafeArrayCreate(VarType.Unknown, 1, bounds);
IntPtr arrayDataPtr;
HResult.Try(NativeMethods.OleAut32.SafeArrayAccessData(arrayPtr, out arrayDataPtr));
try
{
for (var i = bounds[0].LowerBound; i < bounds[0].LowerBound + bounds[0].NumElements; i++)
{
var element = value.GetValue(i);
var elementPtr = (element != null) ? Marshal.GetIUnknownForObject(element) : IntPtr.Zero;
Marshal.WriteIntPtr(arrayDataPtr, i * IntPtr.Size, elementPtr);
}
}
finally
{
HResult.Try(NativeMethods.OleAut32.SafeArrayUnaccessData(arrayPtr));
}
varType = VarType.Flag_Array | VarType.Unknown;
pointerUnion.Pointer1 = arrayPtr;
}
/// <summary>
/// Given a native KnownFolder (IKnownFolderNative), create the right type of
/// IKnownFolder object (FileSystemKnownFolder or NonFileSystemKnownFolder)
/// </summary>
/// <param name="knownFolderNative">Native Known Folder</param>
/// <returns></returns>
private static IKnownFolder GetKnownFolder(IKnownFolderNative knownFolderNative)
{
Debug.Assert(knownFolderNative != null, "Native IKnownFolder should not be null.");
// Get the native IShellItem2 from the native IKnownFolder
IShellItem2 shellItem;
Guid guid = new Guid(ShellIIDGuid.IShellItem2);
HResult hr = knownFolderNative.GetShellItem(0, ref guid, out shellItem);
if (!CoreErrorHelper.Succeeded(hr))
{
return(null);
}
bool isFileSystem = false;
// If we have a valid IShellItem, try to get the FileSystem attribute.
if (shellItem != null)
{
ShellNativeMethods.ShellFileGetAttributesOptions sfgao;
shellItem.GetAttributes(ShellNativeMethods.ShellFileGetAttributesOptions.FileSystem, out sfgao);
// Is this item a FileSystem item?
isFileSystem = (sfgao & ShellNativeMethods.ShellFileGetAttributesOptions.FileSystem) != 0;
}
// If it's FileSystem, create a FileSystemKnownFolder, else NonFileSystemKnownFolder
if (isFileSystem)
{
FileSystemKnownFolder kf = new FileSystemKnownFolder(knownFolderNative);
return(kf);
}
NonFileSystemKnownFolder knownFsFolder = new NonFileSystemKnownFolder(knownFolderNative);
return(knownFsFolder);
}
private static SearchCondition CreateLeafCondition(string propertyName, PropVariant propVar, string valueType, SearchConditionOperation operation)
{
IConditionFactory nativeConditionFactory = null;
SearchCondition condition = null;
try {
// Same as the native "IConditionFactory:MakeLeaf" method
nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition nativeCondition = null;
if (string.IsNullOrEmpty(propertyName) || propertyName.ToUpperInvariant() == "SYSTEM.NULL")
{
propertyName = null;
}
HResult hr = HResult.Fail;
hr = nativeConditionFactory.MakeLeaf(propertyName, operation, valueType,
propVar, null, null, null, false, out nativeCondition);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
// Create our search condition and set the various properties.
condition = new SearchCondition(nativeCondition);
} finally {
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(condition);
}
/// <summary>
/// Creates a condition node that is a logical conjunction ("AND") or disjunction ("OR")
/// of a collection of subconditions.
/// </summary>
/// <param name="conditionType">The SearchConditionType of the condition node.
/// Must be either AndCondition or OrCondition.</param>
/// <param name="simplify">TRUE to logically simplify the result, if possible;
/// then the result will not necessarily to be of the specified kind. FALSE if the result should
/// have exactly the prescribed structure. An application that plans to execute a query based on the
/// condition tree would typically benefit from setting this parameter to TRUE. </param>
/// <param name="conditionNodes">Array of subconditions</param>
/// <returns>New SearchCondition based on the operation</returns>
public static SearchCondition CreateAndOrCondition(SearchConditionType conditionType, bool simplify, params SearchCondition[] conditionNodes)
{
// Same as the native "IConditionFactory:MakeAndOr" method
IConditionFactory nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition result = null;
try
{
//
List <ICondition> conditionList = new List <ICondition>();
if (conditionNodes != null)
{
foreach (SearchCondition c in conditionNodes)
{
conditionList.Add(c.NativeSearchCondition);
}
}
IEnumUnknown subConditions = new EnumUnknownClass(conditionList.ToArray());
HResult hr = nativeConditionFactory.MakeAndOr(conditionType, subConditions, simplify, out result);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(new SearchCondition(result));
}
public HResult GetSymbolByOffset(int moduleIndex, ulong address, out string symbol, out ulong displacement)
{
symbol = null;
// Get the symbol length first
HResult hr = VTable.GetSymbolByOffset(Self, moduleIndex, address, null, 0, out uint symbolSize, out displacement);
if (hr == HResult.S_OK)
{
if (symbolSize > 0)
{
// Now get the symbol
byte[] symbolBuffer = new byte[symbolSize];
fixed(byte *symbolBufferPtr = symbolBuffer)
{
hr = VTable.GetSymbolByOffset(Self, moduleIndex, address, symbolBufferPtr, symbolBuffer.Length, out symbolSize, out displacement);
if (hr == HResult.S_OK)
{
symbol = Encoding.ASCII.GetString(symbolBufferPtr, (int)symbolSize - 1);
if (_hostType == HostType.DbgEng)
{
int index = symbol.IndexOf('!');
if (index != -1)
{
symbol = symbol.Remove(0, index + 1);
}
}
}
}
}
else
{
hr = HResult.E_INVALIDARG;
}
}
return(hr);
}
private void AppendTaskList()
{
if (userTasks == null || userTasks.Count == 0)
{
return;
}
IObjectCollection taskContent =
(IObjectCollection) new CEnumerableObjectCollection();
// Add each task's shell representation to the object array
foreach (JumpListTask task in userTasks)
{
JumpListSeparator seperator;
JumpListLink link = task as JumpListLink;
if (link != null)
{
taskContent.AddObject(link.NativeShellLink);
}
else if ((seperator = task as JumpListSeparator) != null)
{
taskContent.AddObject(seperator.NativeShellLink);
}
}
// Add tasks to the taskbar
HResult hr = customDestinationList.AddUserTasks((IObjectArray)taskContent);
if (!CoreErrorHelper.Succeeded(hr))
{
if ((uint)hr == 0x80040F03)
{
throw new InvalidOperationException(LocalizedMessages.JumpListFileTypeNotRegistered);
}
throw new ShellException(hr);
}
}
private static IntPtr GetHBitmap(string fileName, int width, int height, ThumbnailOptions options)
{
IShellItem nativeShellItem;
Guid shellItem2Guid = new Guid(IShellItem2Guid);
int retCode = SHCreateItemFromParsingName(fileName, IntPtr.Zero, ref shellItem2Guid, out nativeShellItem);
if (retCode != 0)
{
throw Marshal.GetExceptionForHR(retCode);
}
NativeSize nativeSize = new NativeSize
{
Width = width,
Height = height
};
IntPtr hBitmap;
HResult hr = ((IShellItemImageFactory)nativeShellItem).GetImage(nativeSize, options, out hBitmap);
// if extracting image thumbnail and failed, extract shell icon
if (options == ThumbnailOptions.ThumbnailOnly && hr == HResult.ExtractionFailed)
{
hr = ((IShellItemImageFactory)nativeShellItem).GetImage(nativeSize, ThumbnailOptions.IconOnly, out hBitmap);
}
Marshal.ReleaseComObject(nativeShellItem);
if (hr == HResult.Ok)
{
return(hBitmap);
}
throw new COMException($"Error while extracting thumbnail for {fileName}", Marshal.GetExceptionForHR((int)hr));
}
public HResult SetOutputBounds(
long hnsLowerBound,
long hnsUpperBound
)
{
HResult hr = HResult.S_OK;
try
{
Trace("SetOutputBounds");
lock (m_TransformLockObject)
{
// Output bounds not supported
hr = HResult.E_NOTIMPL;
}
}
catch (Exception e)
{
hr = (HResult)Marshal.GetHRForException(e);
}
return(CheckReturn(hr));
}
public HResult AddInputStreams(
int cStreams,
int[] adwStreamIDs
)
{
HResult hr = HResult.S_OK;
try
{
Trace("AddInputStreams");
lock (m_TransformLockObject)
{
// Adding streams not supported.
hr = HResult.E_NOTIMPL;
}
}
catch (Exception e)
{
hr = (HResult)Marshal.GetHRForException(e);
}
return(CheckReturn(hr));
}
public HResult GetAttributes(
out IMFAttributes pAttributes
)
{
pAttributes = null;
HResult hr = HResult.S_OK;
try
{
// Trace("GetAttributes"); not interesting
lock (m_TransformLockObject)
{
hr = HResult.E_NOTIMPL;
}
}
catch (Exception e)
{
hr = (HResult)Marshal.GetHRForException(e);
}
return(hr); // CheckReturn(hr);
}
/// <summary>
/// Given a native KnownFolder (IKnownFolderNative), create the right type of
/// IKnownFolder object (FileSystemKnownFolder or NonFileSystemKnownFolder)
/// </summary>
/// <param name="knownFolderNative">Native Known Folder</param>
/// <returns></returns>
private static IKnownFolder GetKnownFolder(IKnownFolderNative knownFolderNative)
{
Debug.Assert(knownFolderNative != null, "Native IKnownFolder should not be null.");
// Get the native IShellItem2 from the native IKnownFolder
IShellItem shellItem;
Guid guid = new Guid(InterfaceGuids.IShellItem);
HResult hr = knownFolderNative.GetShellItem(0, ref guid, out shellItem);
if (hr != HResult.S_OK)
{
return(null);
}
bool isFileSystem = false;
// If we have a valid IShellItem, try to get the FileSystem attribute.
if (shellItem != null)
{
SFGAO sfgao;
shellItem.GetAttributes(SFGAO.FILESYSTEM, out sfgao);
// Is this item a FileSystem item?
isFileSystem = (sfgao & SFGAO.FILESYSTEM) != 0;
}
// If it's FileSystem, create a FileSystemKnownFolder, else NonFileSystemKnownFolder
if (isFileSystem)
{
return(FileSystemKnownFolder.Create(knownFolderNative));
}
var knownFsFolder = new NonFileSystemKnownFolder(knownFolderNative);
return(knownFsFolder);
}
private void ApplyComplete(object sender, ApplyCompleteEventArgs e)
{
App.Current.Result = e.Status;
if (App.Current.Command.Display != Display.Full)
{
if (App.Current.Command.Display == Display.Passive)
{
App.Current.Engine.Log(LogLevel.Verbose, "Automatically closing the window for non-interactive install");
App.Current.Dispatcher.BeginInvoke(DispatcherPriority.Normal, (Action)(() => App.Current.Finish()));
}
else
{
App.Current.Dispatcher.InvokeShutdown();
}
}
if (State != PreApplyState)
{
State = e.Restart != ApplyRestart.None
? InstallationState.RebootRequired
: HResult.Succeeded(e.Status) ? InstallationState.Successful : InstallationState.Failed;
}
}
public static IVsHierarchy GetNestedHierarchy(IVsHierarchy hierarchy, uint itemId, out uint nestedItemId)
{
var iidHierarchyNested = IID_IVsHierarchy;
IntPtr ppHierarchyNested;
var nestedHierarchy = hierarchy.GetNestedHierarchy(itemId, ref iidHierarchyNested, out ppHierarchyNested,
out nestedItemId);
IVsHierarchy vsHierarchy = null;
try
{
if (HResult.Succeeded(nestedHierarchy))
{
if (ppHierarchyNested != IntPtr.Zero)
{
vsHierarchy = (IVsHierarchy)Marshal.GetObjectForIUnknown(ppHierarchyNested);
}
}
}
finally
{
TFCommonUtil.SafeRelease(ppHierarchyNested);
}
return(vsHierarchy);
}
public unsafe void FindName()
{
HResult result = LoadStdOle2(out ITypeLib typeLib);
result.Should().Be(HResult.S_OK);
typeLib.Should().NotBeNull();
string name = "picture";
char * nameBuffer = stackalloc char[name.Length + 1];
Span <char> nameSpan = new Span <char>(nameBuffer, name.Length);
name.AsSpan().CopyTo(nameSpan);
nameBuffer[name.Length] = '\0';
IntPtr * typeInfos = stackalloc IntPtr[1];
MemberId *memberIds = stackalloc MemberId[1];
ushort found = 1;
result = typeLib.FindName(
nameBuffer,
lHashVal: 0,
typeInfos,
memberIds,
&found);
result.Should().Be(HResult.S_OK);
found.Should().Be(1);
memberIds[0].Should().Be(new MemberId {
Value = -1
});
typeInfos[0].Should().NotBe(IntPtr.Zero);
Marshal.Release(typeInfos[0]);
// Find gives back the right casing
nameSpan.ToString().Should().Be("Picture");
}
private void mPlayPauseBtn_Click(object sender, RoutedEventArgs e)
{
mIsSeek = false;
mNewValue = -1.0;
if (mIsPlaying)
{
HResult hr = m_pSession.Pause();
if (hr == HResult.S_OK)
{
mImageBtn.Source = new BitmapImage(new Uri("pack://application:,,,/WPFMediaFoundationPlayer;component/Images/play-button.png", UriKind.Absolute));
mIsPlaying = false;
mTickTimer.Stop();
}
}
else
{
StartPlayback();
}
}
private static HResult CreateMediaSource(string videoFile, out IMFMediaSource source)
{
IMFSourceResolver resolver = null;
source = null;
HResult hr = MF.CreateSourceResolver(out resolver);
if (Failed(hr))
{
return(hr);
}
hr = resolver.CreateObjectFromURL(videoFile, MFResolution.MediaSource, null, out source);
if (Failed(hr))
{
SafeRelease(source);
}
SafeRelease(resolver);
return(hr);
}
/// <summary>
/// Gets the start and stop times for the media item.
/// </summary>
/// <param name="mediaItem">A valid IMFPMediaItem instance.</param>
/// <param name="startValue">Receives the start position.</param>
/// <param name="stopValue">Receives the stop position.</param>
/// <returns>If this function succeeds, it returns the S_OK member. Otherwise, it returns another HResult's member that describe the error.</returns>
public static HResult GetStartStopPosition(this IMFPMediaItem mediaItem, out TimeSpan startValue, out TimeSpan stopValue)
{
if (mediaItem == null)
{
throw new ArgumentNullException("mediaItem");
}
using (PropVariant resultStart = new PropVariant(), resultStop = new PropVariant())
{
HResult hr = mediaItem.GetStartStopPosition(Guid.Empty, resultStart, Guid.Empty, resultStop);
if (hr.Succeeded())
{
startValue = TimeSpan.FromTicks((long)resultStart.GetULong());
stopValue = TimeSpan.FromTicks((long)resultStop.GetULong());
}
else
{
startValue = default(TimeSpan);
stopValue = default(TimeSpan);
}
return(hr);
}
}
/// <summary>
/// Registers an application for recovery by Application Restart and Recovery.
/// </summary>
/// <param name="settings">An object that specifies
/// the callback method, an optional parameter to pass to the callback
/// method and a time interval.</param>
/// <exception cref="System.ArgumentException">
/// The registration failed due to an invalid parameter.
/// </exception>
/// <exception cref="System.ComponentModel.Win32Exception">
/// The registration failed.</exception>
/// <remarks>The time interval is the period of time within
/// which the recovery callback method
/// calls the <see cref="ApplicationRecoveryInProgress"/> method to indicate
/// that it is still performing recovery work.</remarks>
public static void RegisterForApplicationRecovery(RecoverySettings settings)
{
CoreHelpers.ThrowIfNotVista();
if (settings == null)
{
throw new ArgumentNullException("settings");
}
GCHandle handle = GCHandle.Alloc(settings.RecoveryData);
HResult hr = AppRestartRecoveryNativeMethods.RegisterApplicationRecoveryCallback(
AppRestartRecoveryNativeMethods.InternalCallback, (IntPtr)handle, settings.PingInterval, (uint)0);
if (!CoreErrorHelper.Succeeded(hr))
{
if (hr == HResult.InvalidArguments)
{
throw new ArgumentException(LocalizedMessages.ApplicationRecoveryBadParameters, "settings");
}
throw new ApplicationRecoveryException(LocalizedMessages.ApplicationRecoveryFailedToRegister);
}
}
private string RemoveCustomCategoryItem(IShellItem item)
{
string path = null;
if (customCategoriesCollection != null)
{
IntPtr pszString = IntPtr.Zero;
HResult hr = item.GetDisplayName(ShellItemDesignNameOptions.FileSystemPath, out pszString);
if (hr == HResult.Ok && pszString != IntPtr.Zero)
{
path = Marshal.PtrToStringAuto(pszString);
// Free the string
Marshal.FreeCoTaskMem(pszString);
}
// Remove this item from each category
foreach (JumpListCustomCategory category in customCategoriesCollection)
{
category.RemoveJumpListItem(path);
}
}
return(path);
}
/// <summary>
/// Initializes an exception with custom message and error code.
/// </summary>
/// <param name="message"></param>
/// <param name="errorCode"></param>
internal ShellException(string message, HResult errorCode) : this(message, (int)errorCode) { }
/// <summary>
/// Initializes a new exception using an HResult
/// </summary>
/// <param name="result">HResult error</param>
internal ShellException(HResult result) : this((int)result) { }
public static void RaiseComError(HResult hr, string message) {
throw new System.Runtime.InteropServices.COMException(message,(int)hr);
}
public HResultException(HResult hResult, string message)
: base(message)
{
HResult = hResult;
}
/// <summary>
/// Initializes an exception with custom message and error code.
/// </summary>
/// <param name="message"></param>
/// <param name="errorCode"></param>
public CommonControlException(string message, HResult errorCode)
: this(message, (int)errorCode)
{
}
/// <summary>
/// This is intended for Library Internal use only.
/// </summary>
/// <param name="result">The error code.</param>
/// <returns>True if the error code indicates success.</returns>
public static bool Succeeded(HResult result)
{
return(Succeeded((int)result));
}
public void WindowsErrorToHresultMappings(WindowsError error, HResult expected)
{
HResult result = error.ToHResult();
result.Should().Be(expected);
}
/// <summary>This is intended for Library Internal use only.</summary> /// <param name="result">The error code.</param> /// <returns>True if the error code indicates failure.</returns> public static bool Failed(HResult result) => !Succeeded(result);
/// <summary>
/// Parses an input string that contains Structured Query keywords (using Advanced Query Syntax
/// or Natural Query Syntax) and produces a SearchCondition object.
/// </summary>
/// <param name="query">The query to be parsed</param>
/// <param name="cultureInfo">The culture used to select the localized language for keywords.</param>
/// <returns>Search condition resulting from the query</returns>
/// <remarks>For more information on structured query syntax, visit http://msdn.microsoft.com/en-us/library/bb233500.aspx and
/// http://www.microsoft.com/windows/products/winfamily/desktopsearch/technicalresources/advquery.mspx</remarks>
public static SearchCondition ParseStructuredQuery(string query, CultureInfo cultureInfo)
{
if (string.IsNullOrEmpty(query))
{
throw new ArgumentNullException(nameof(query));
}
IQueryParserManager nativeQueryParserManager = (IQueryParserManager) new QueryParserManagerCoClass();
IQueryParser queryParser = null;
IQuerySolution querySolution = null;
ICondition result = null;
IEntity mainType = null;
SearchCondition searchCondition = null;
try
{
// First, try to create a new IQueryParser using IQueryParserManager
Guid guid = new Guid(ShellIIDGuid.IQueryParser);
HResult hr = nativeQueryParserManager.CreateLoadedParser(
"SystemIndex",
cultureInfo == null ? (ushort)0 : (ushort)cultureInfo.LCID,
ref guid,
out queryParser);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
if (queryParser != null)
{
// If user specified natural query, set the option on the query parser
using (PropVariant optionValue = new PropVariant(true))
{
hr = queryParser.SetOption(StructuredQuerySingleOption.NaturalSyntax, optionValue);
}
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
// Next, try to parse the query.
// Result would be IQuerySolution that we can use for getting the ICondition and other
// details about the parsed query.
hr = queryParser.Parse(query, null, out querySolution);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
if (querySolution != null)
{
// Lastly, try to get the ICondition from this parsed query
hr = querySolution.GetQuery(out result, out mainType);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
}
}
searchCondition = new SearchCondition(result);
return(searchCondition);
}
catch
{
if (searchCondition != null)
{
searchCondition.Dispose();
}
throw;
}
finally
{
if (nativeQueryParserManager != null)
{
Marshal.ReleaseComObject(nativeQueryParserManager);
}
if (queryParser != null)
{
Marshal.ReleaseComObject(queryParser);
}
if (querySolution != null)
{
Marshal.ReleaseComObject(querySolution);
}
if (mainType != null)
{
Marshal.ReleaseComObject(mainType);
}
}
}
//Initializes the Hauppauge interfaces
/// <summary>
/// Constructor: Require the Hauppauge capture filter, and the deviceid for the card to be passed in
/// </summary>
public Hauppauge(IBaseFilter filter, string tuner)
{
try
{
//Don't create the class if we don't have any filter;
if (filter == null)
{
return;
}
//Load Library
hauppaugelib = LoadLibrary("hauppauge.dll");
//Get Proc addresses, and set the delegates for each function
IntPtr procaddr = GetProcAddress(hauppaugelib, "Init");
_Init = (Init)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (Init));
procaddr = GetProcAddress(hauppaugelib, "DeInit");
_DeInit = (DeInit)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (DeInit));
procaddr = GetProcAddress(hauppaugelib, "IsHauppauge");
_IsHauppauge = (IsHauppauge)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (IsHauppauge));
procaddr = GetProcAddress(hauppaugelib, "SetVidBitRate");
_SetVidBitRate = (SetVidBitRate)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (SetVidBitRate));
procaddr = GetProcAddress(hauppaugelib, "GetVidBitRate");
_GetVidBitRate = (GetVidBitRate)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (GetVidBitRate));
procaddr = GetProcAddress(hauppaugelib, "SetAudBitRate");
_SetAudBitRate = (SetAudBitRate)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (SetAudBitRate));
procaddr = GetProcAddress(hauppaugelib, "GetAudBitRate");
_GetAudBitRate = (GetAudBitRate)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (GetAudBitRate));
procaddr = GetProcAddress(hauppaugelib, "SetStreamType");
_SetStreamType = (SetStreamType)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (SetStreamType));
procaddr = GetProcAddress(hauppaugelib, "GetStreamType");
_GetStreamType = (GetStreamType)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (GetStreamType));
procaddr = GetProcAddress(hauppaugelib, "SetDNRFilter");
_SetDNRFilter = (SetDNRFilter)Marshal.GetDelegateForFunctionPointer(procaddr, typeof (SetDNRFilter));
//Hack
//The following is strangely necessary when using delegates instead of P/Invoke - linked to MP using utf-8
//Hack
byte[] encodedstring = Encoding.UTF32.GetBytes(tuner);
string card = Encoding.Unicode.GetString(encodedstring);
hr = new HResult(_Init(filter, card));
Log.Log.WriteFile("Hauppauge Quality Control Initializing " + hr.ToDXString());
}
catch (Exception ex)
{
Log.Log.WriteFile("Hauppauge Init failed " + ex.Message);
}
}
public void GetException(HResult.Code hrCode)
{
HResult hr = hrCode;
Exception expected = Marshal.GetExceptionForHR(hr);
Exception actual = hr.GetException();
if (expected == null)
{
Assert.Null(actual);
}
else
{
Assert.IsType(expected.GetType(), actual);
Assert.Equal(expected.Message, actual.Message);
}
}
public void GetExceptionWithErrorInfo(HResult.Code hrCode)
{
HResult hr = hrCode;
Exception expected = Marshal.GetExceptionForHR(hr);
Exception actual = hr.GetException(IntPtr.Zero); // Consider actually initializing this.
if (expected == null)
{
Assert.Null(actual);
}
else
{
Assert.IsType(expected.GetType(), actual);
Assert.Equal(expected.Message, actual.Message);
}
}
public static bool ThrowOnFailure(HResult hr)
{
Marshal.ThrowExceptionForHR((int)hr);
return hr != HResult.False;
}
public HMessage BuildMessage(string actor, string type, HResult payload, HMessageOptions mOptions)
{
return InnerBuildMessage(actor, type, payload, mOptions);
}
public HResultException(HResult hResult)
: base()
{
HResult = hResult;
}
//---private methods---
private HMessage InnerBuildResult(string actor, string @ref, ResultStatus? status, JToken result, HMessageOptions mOptions)
{
if (actor == null || actor.Length <= 0)
throw new MissingAttrException("actor");
if (@ref == null || @ref.Length <= 0)
throw new MissingAttrException("ref");
if (status == null)
throw new MissingAttrException("status");
HResult hResult = new HResult();
hResult.SetResult(result);
hResult.SetStatus(status);
if (mOptions == null)
mOptions = new HMessageOptions();
mOptions.Ref = @ref;
return BuildMessage(actor, "hResult", hResult, mOptions);
}
public HResultException(HResult hResult, string message, Exception innerException)
: base(message, innerException)
{
HResult = hResult;
}
private void notifyResultError(string @ref, ResultStatus resultStatus, string errorMsg, Action<HMessage> messageDelegate)
{
JObject obj = new JObject();
obj["errorMsg"] = errorMsg;
HResult result = new HResult();
result.SetStatus(resultStatus);
result.SetResult(obj);
HMessage message = new HMessage();
message.SetRef(@ref);
message.SetType("hResult");
message.SetPayload(result);
this.notifyMessage(message, messageDelegate);
}
/// <summary>
/// This is intended for Library Internal use only.
/// </summary>
/// <param name="result">The error code.</param>
/// <returns>True if the error code indicates failure.</returns>
public static bool Failed(HResult result)
{
return !Succeeded(result);
}
public static void RaiseComError(HResult hr) {
throw new System.Runtime.InteropServices.COMException("",(int)hr);
}
public static bool IsError(this HResult result)
{
//Return != OK because there are come errors with lower values than HResult.False
return(result != HResult.OK);
}
/// <summary>
/// This is intended for Library Internal use only.
/// </summary>
/// <param name="result">The error code.</param>
/// <returns>True if the error code indicates success.</returns>
public static bool Succeeded(HResult result)
{
return Succeeded((int)result);
}
/// <summary>This is intended for Library Internal use only.</summary> /// <param name="result">The error code.</param> /// <returns>True if the error code indicates success.</returns> public static bool Succeeded(HResult result) => Succeeded((int)result);
public static bool Failure(HResult hr)
{
return hr < 0;
}
/// <summary>
/// This is intended for Library Internal use only.
/// </summary>
/// <param name="result">The error code.</param>
/// <returns>True if the error code indicates failure.</returns>
public static bool Failed(HResult result)
{
return(!Succeeded(result));
}
public static bool Success(HResult hr)
{
return hr >= 0;
}
private void Throw(HResult hr)
{
MFError.ThrowExceptionForHR(hr);
}
/// <summary>
/// Initializes a new exception using an HResult
/// </summary>
/// <param name="result">HResult error</param>
public ShellException(HResult result)
: this((int)result)
{
}
