qualityforward.cpp File Reference

#include "precomp.h"

Include dependency graph for qualityforward.cpp:

Go to the source code of this file.

Classes
class	CKsQualityForwarder

Macros
#define	IID_IKsQualityForwarder   KSCATEGORY_QUALITY

Functions
HRESULT WINAPI	CKsQualityForwarder_Constructor (IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv)

Macro Definition Documentation

IID_IKsQualityForwarder

#define IID_IKsQualityForwarder   KSCATEGORY_QUALITY

Definition at line 11 of file qualityforward.cpp.

Function Documentation

CKsQualityForwarder_Constructor()

HRESULT WINAPI CKsQualityForwarder_Constructor	(	IUnknown *	pUnkOuter,
		REFIID	riid,
		LPVOID *	ppv
	)

Definition at line 94 of file qualityforward.cpp.

{
    HRESULT hr;
    HANDLE handle;
 
#ifdef KSPROXY_TRACE
    OutputDebugStringW(L"CKsQualityForwarder_Constructor\n");
#endif
 
    // open default clock
    hr = KsOpenDefaultDevice(KSCATEGORY_QUALITY, GENERIC_READ | GENERIC_WRITE, &handle);
 
    if (hr != NOERROR)
    {
#ifdef KSPROXY_TRACE
         OutputDebugString("CKsClockForwarder_Constructor failed to open device\n");
#endif
         return hr;
    }
 
    CKsQualityForwarder * quality = new CKsQualityForwarder(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;
}