///<summary>
/// Query Interface for a particular interface support and attach to the given instance.
///</summary>
///<typeparam name="T"></typeparam>
///<returns></returns>
protected void QueryInterfaceFrom <T>(T fromObject) where T : ComObject
{
IntPtr parentPtr;
fromObject.QueryInterface(Utilities.GetGuidFromType(this.GetType()), out parentPtr);
NativePointer = parentPtr;
}
///<summary>
/// Query this instance for a particular COM interface support.
///</summary>
///<typeparam name="T">The type of the COM interface to query</typeparam>
///<returns>An instance of the queried interface</returns>
/// <exception cref="SharpDXException">If this object doesn't support the interface</exception>
/// <msdn-id>ms682521</msdn-id>
/// <unmanaged>IUnknown::QueryInterface</unmanaged>
/// <unmanaged-short>IUnknown::QueryInterface</unmanaged-short>
internal virtual T QueryInterfaceUnsafe <T>()
{
IntPtr parentPtr;
this.QueryInterface(Utilities.GetGuidFromType(typeof(T)), out parentPtr);
return(FromPointerUnsafe <T>(parentPtr));
}
///<summary>
/// Query this instance for a particular COM interface support.
///</summary>
///<typeparam name="T">The type of the COM interface to query</typeparam>
///<returns>An instance of the queried interface</returns>
/// <exception cref="SharpDXException">If this object doesn't support the interface</exception>
/// <msdn-id>ms682521</msdn-id>
/// <unmanaged>IUnknown::QueryInterface</unmanaged>
/// <unmanaged-short>IUnknown::QueryInterface</unmanaged-short>
public virtual T QueryInterface <T>() where T : ComObject
{
IntPtr parentPtr;
this.QueryInterface(Utilities.GetGuidFromType(typeof(T)), out parentPtr);
return(FromPointer <T>(parentPtr));
}
internal virtual T QueryInterfaceUnsafe <T>()
{
IntPtr outPtr;
this.QueryInterface(Utilities.GetGuidFromType(typeof(T)), out outPtr);
return(CppObject.FromPointerUnsafe <T>(outPtr));
}
/// <summary>
/// Queries a managed object for a particular COM interface support.
/// </summary>
///<typeparam name="T">The type of the COM interface to query</typeparam>
/// <param name="comPointer">A pointer to a COM object.</param>
///<returns>An instance of the queried interface</returns>
/// <msdn-id>ms682521</msdn-id>
/// <unmanaged>IUnknown::QueryInterface</unmanaged>
/// <unmanaged-short>IUnknown::QueryInterface</unmanaged-short>
public static T QueryInterfaceOrNull <T>(IntPtr comPointer) where T : ComObject
{
if (comPointer == IntPtr.Zero)
{
return(null);
}
var guid = Utilities.GetGuidFromType(typeof(T));
IntPtr pointerT;
var result = (Result)Marshal.QueryInterface(comPointer, ref guid, out pointerT);
return((result.Failure) ? null : FromPointerUnsafe <T>(pointerT));
}
public void Initialize(ICallbackable callbackable)
{
callbackable.Shadow = (IDisposable)this;
Type type1 = callbackable.GetType();
List <Type> list;
lock (ShadowContainer.typeToShadowTypes)
{
if (!ShadowContainer.typeToShadowTypes.TryGetValue(type1, out list))
{
Type[] local_2 = type1.GetInterfaces();
list = new List <Type>();
list.AddRange((IEnumerable <Type>)local_2);
ShadowContainer.typeToShadowTypes.Add(type1, list);
foreach (Type item_1 in local_2)
{
if (ShadowAttribute.Get(item_1) == null)
{
list.Remove(item_1);
}
else
{
foreach (Type item_0 in item_1.GetInterfaces())
{
list.Remove(item_0);
}
}
}
}
}
CppObjectShadow cppObjectShadow1 = (CppObjectShadow)null;
foreach (Type type2 in list)
{
CppObjectShadow cppObjectShadow2 = (CppObjectShadow)Activator.CreateInstance(ShadowAttribute.Get(type2).Type);
cppObjectShadow2.Initialize(callbackable);
if (cppObjectShadow1 == null)
{
cppObjectShadow1 = cppObjectShadow2;
this.guidToShadow.Add(ComObjectShadow.IID_IUnknown, cppObjectShadow1);
}
this.guidToShadow.Add(Utilities.GetGuidFromType(type2), cppObjectShadow2);
foreach (Type type3 in type2.GetInterfaces())
{
if (ShadowAttribute.Get(type3) != null)
{
this.guidToShadow.Add(Utilities.GetGuidFromType(type3), cppObjectShadow2);
}
}
}
}
public void Initialize(ICallbackable callbackable)
{
callbackable.Shadow = this;
var type = callbackable.GetType();
List <Type> slimInterfaces;
// Cache reflection on COM interface inheritance
lock (typeToShadowTypes)
{
if (!typeToShadowTypes.TryGetValue(type, out slimInterfaces))
{
#if BEFORE_NET45
var interfaces = type.GetTypeInfo().GetInterfaces();
#else
var interfaces = type.GetTypeInfo().ImplementedInterfaces;
#endif
slimInterfaces = new List <Type>();
slimInterfaces.AddRange(interfaces);
typeToShadowTypes.Add(type, slimInterfaces);
// First pass to identify most detailed interfaces
foreach (var item in interfaces)
{
// Only process interfaces that are using shadow
var shadowAttribute = ShadowAttribute.Get(item);
if (shadowAttribute == null)
{
slimInterfaces.Remove(item);
continue;
}
// Keep only final interfaces and not intermediate.
#if BEFORE_NET45
var inheritList = item.GetTypeInfo().GetInterfaces();
#else
var inheritList = item.GetTypeInfo().ImplementedInterfaces;
#endif
foreach (var inheritInterface in inheritList)
{
slimInterfaces.Remove(inheritInterface);
}
}
}
}
CppObjectShadow iunknownShadow = null;
// Second pass to instantiate shadow
foreach (var item in slimInterfaces)
{
// Only process interfaces that are using shadow
var shadowAttribute = ShadowAttribute.Get(item);
// Initialize the shadow with the callback
var shadow = (CppObjectShadow)Activator.CreateInstance(shadowAttribute.Type);
shadow.Initialize(callbackable);
// Take the first shadow as the main IUnknown
if (iunknownShadow == null)
{
iunknownShadow = shadow;
// Add IUnknown as a supported interface
guidToShadow.Add(ComObjectShadow.IID_IUnknown, iunknownShadow);
}
guidToShadow.Add(Utilities.GetGuidFromType(item), shadow);
// Associate also inherited interface to this shadow
#if BEFORE_NET45
var inheritList = item.GetTypeInfo().GetInterfaces();
#else
var inheritList = item.GetTypeInfo().ImplementedInterfaces;
#endif
foreach (var inheritInterface in inheritList)
{
var inheritShadowAttribute = ShadowAttribute.Get(inheritInterface);
if (inheritShadowAttribute == null)
{
continue;
}
// Use same shadow as derived
guidToShadow.Add(Utilities.GetGuidFromType(inheritInterface), shadow);
}
}
// Precalculate the list of GUID without IUnknown and IInspectable
// Used for WinRT
int countGuids = 0;
foreach (var guidKey in guidToShadow.Keys)
{
if (guidKey != Utilities.GetGuidFromType(typeof(IInspectable)) && guidKey != Utilities.GetGuidFromType(typeof(IUnknown)))
{
countGuids++;
}
}
guidPtr = Marshal.AllocHGlobal(Utilities.SizeOf <Guid>() * countGuids);
Guids = new IntPtr[countGuids];
int i = 0;
unsafe
{
var pGuid = (Guid *)guidPtr;
foreach (var guidKey in guidToShadow.Keys)
{
if (guidKey == Utilities.GetGuidFromType(typeof(IInspectable)) || guidKey == Utilities.GetGuidFromType(typeof(IUnknown)))
{
continue;
}
pGuid[i] = guidKey;
// Store the pointer
Guids[i] = new IntPtr(pGuid + i);
i++;
}
}
}
internal IntPtr Find(Type type)
{
return(Find(Utilities.GetGuidFromType(type)));
}
///<summary>
/// Query Interface for a particular interface support.
///</summary>
///<returns>An instance of the queried interface or null if it is not supported</returns>
///<returns></returns>
/// <msdn-id>ms682521</msdn-id>
/// <unmanaged>IUnknown::QueryInterface</unmanaged>
/// <unmanaged-short>IUnknown::QueryInterface</unmanaged-short>
public virtual T QueryInterfaceOrNull <T>() where T : ComObject
{
return(FromPointer <T>(QueryInterfaceOrNull(Utilities.GetGuidFromType(typeof(T)))));
}