node.cpp File Reference

#include "precomp.h"

Include dependency graph for node.cpp:

Go to the source code of this file.

Classes
class	CKsNode

Functions
HRESULT WINAPI	CKsNode_Constructor (IUnknown *pUnkOuter, HANDLE ParentHandle, ULONG NodeId, ACCESS_MASK DesiredAccess, REFIID riid, LPVOID *ppv)

Function Documentation

CKsNode_Constructor()

HRESULT WINAPI CKsNode_Constructor	(	IUnknown *	pUnkOuter,
		HANDLE	ParentHandle,
		ULONG	NodeId,
		ACCESS_MASK	DesiredAccess,
		REFIID	riid,
		LPVOID *	ppv
	)

Definition at line 115 of file node.cpp.

{
    HRESULT hr;
    HANDLE handle;
    KSNODE_CREATE NodeCreate;
 
#ifdef KSPROXY_TRACE
    OutputDebugStringW(L"CKsNode_Constructor\n");
#endif
 
    //setup request
    NodeCreate.CreateFlags = 0;
    NodeCreate.Node = NodeId;
 
    hr = KsCreateTopologyNode(ParentHandle, &NodeCreate, DesiredAccess, &handle);
    if (hr != NOERROR)
    {
         OutputDebugString("CKsNode_Constructor failed to open device\n");
         return MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, hr);
    }
 
    CKsNode * quality = new CKsNode(pUnkOuter, handle);
 
    if (!quality)
    {
        // free clock handle
        CloseHandle(handle);
        return E_OUTOFMEMORY;
    }
 
    if (FAILED(quality->QueryInterface(riid, ppv)))
    {
        /* not supported */
        delete quality;
        return E_NOINTERFACE;
    }
 
    return NOERROR;
}

Referenced by CKsProxy::CreateNodeInstance().