// Queue1.idl : IDL source for Queue1.dll
//

// This file will be processed by the MIDL tool to
// produce the type library (Queue1.tlb) and marshalling code.

import "oaidl.idl";
import "ocidl.idl";
	[
		object,
		uuid(AFB0FF70-487E-11D6-A9A4-00606772164E),
	
		helpstring("IQueue Interface"),
		pointer_default(unique)
	]
	interface IGet : IUnknown
	{
		//	To get items.  Note: aLength is the length of the buffer going in, the actual length going out
		[helpstring("method Get")] HRESULT Get([in]char*aItem, [in,out]UINT*aLength, [in]UINT*aTimeout);
		//	Wait until data is available
		[helpstring("method Available")] HRESULT Available([in]UINT*aLength, [in]UINT*aTimeout);
		//	This will clear the queue
		[helpstring("method Clear")] HRESULT Clear();
		//	This will interrupt the Get or Available operations
		[helpstring("method Interrupt")] HRESULT Interrupt();
		//	This will return the number of characters in the queue
		[helpstring("method Used")] HRESULT Used([out]UINT*aSize);
	};

	[
		object,
		uuid(AFB0FF71-487E-11D6-A9A4-00606772164E),
	
		helpstring("IQueue Interface"),
		pointer_default(unique)
	]
	interface IQueue : IUnknown
	{
		//	This will get the object that is supplying the characters
		[propget, helpstring("property Interface")] HRESULT Interface([out, retval] IGet* *pVal);
		//	Setting the interface will start the queue.  There is no reason to start it before that
		[propput, helpstring("property Interface")] HRESULT Interface([in] IGet* newVal);
		//	This will return the number of characters free for the queue
		//		(I cannot put this above because the number of characters might 
		//		not be possible if this were a linked implementation.
		[helpstring("method Free")] HRESULT Free([out]UINT*aSize);
	};

[
	uuid(AFB0FF60-487E-11D6-A9A4-00606772164E),
	version(1.0),
	helpstring("Queue1 1.0 Type Library")
]
library QUEUE1Lib
{
	importlib("stdole32.tlb");
	importlib("stdole2.tlb");

	[
		uuid(AFB0FF7B-487E-11D6-A9A4-00606772164E),
		helpstring("Queue Class")
	]
	coclass Queue
	{
		[default] interface IGet;
		interface IQueue;
	};
};