COM in plain C, Part 6

// The IDL file for IExample2.DLL
//
// {E1124082-5FCD-4a66-82A6-755E4D45A9FC} = Type library's GUID
// {520F4CFD-61C6-4eed-8004-C26D514D3D19} = IExample2 object's GUID
// {B6127C55-AC5F-4ba0-AFF6-7220C95EEF4D} = IExample2 VTable's GUID

[uuid(E1124082-5FCD-4a66-82A6-755E4D45A9FC), version(1.0), helpstring("IExample2 COM server")]
library IExample2
{
	importlib("STDOLE2.TLB");

	[uuid(B6127C55-AC5F-4ba0-AFF6-7220C95EEF4D), dual, oleautomation, hidden, nonextensible]
	interface IExample2Vtbl : IDispatch
	{
		[helpstring("Sets the test string.")]
		[id(1)] HRESULT SetString([in] BSTR str);
		[helpstring("Gets the test string.")]
		[id(2)] HRESULT GetString([out, retval] BSTR *strptr);
	}

	[uuid(520F4CFD-61C6-4eed-8004-C26D514D3D19), helpstring("IExample2 object."), appobject]
	coclass IExample2
	{
		[default] interface IExample2Vtbl;
	}
}